Safe Starches and Dietary Labels

When I clicked the Publish button after writing my last post, I told Chareva, “I bet this one will draw a few extra comments.”  Yup.  Nothing like mentioning that word starch to get people excited one way or the other.  I suspect a few readers were concerned I was about to announce I’m abandoning my low-carb diet.

(I’m told one blogger has even speculated that I’m not going on the low-carb cruise this year because I want to “distance” myself from Jimmy Moore.  Heh-heh-heh … I’ll be sure to post plenty of pictures when Jimmy and Christine come to stay with us for a week in July.  The only way I hope to “distance” myself from Jimmy is by out-driving him during our disc golf matches.  I’m skipping the cruise because I knew I was going to be swamped with a software project – which I still am, but the end is finally in sight.)

Anyway, no, I’m not abandoning my low-carb diet.  I’m tweaking it.  The Perfect Health Diet is a low-carb diet.  It’s just not a very-low-carb, Atkins-induction-style diet.   It’s also probably closer to the low-carb diet your paleo ancestors actually consumed than a starch-free diet would be, no matter what the Inuits did or didn’t eat.

According to some posts Richard Nikoley put up recently, the Inuits apparently sought out animals that contain a fair amount of glycogen in their organs.  Their diets may have been up to 20% carbohydrate as a result.  There’s been some debate on that, but let’s suppose for the sake of argument the Inuits really and truly lived on a carb-free diet.  So what?  They were still the exception in the wide, wide world of paleo people, so we can’t exactly point to them and conclude that their diet is the ideal diet for everyone.  Most hunter-gatherers gathered some tubers or other starchy plants to go along with their meat and fish.  Many low-carbers might be better off doing likewise.  (Eating tubers, I mean, not necessarily gathering them.)

Gary Taubes once wrote a post explaining that when people cut calories to lose weight, they almost always cut carbohydrates as well.  Even if all they do is eat less of the same foods, a 30% reduction in calories would mean a 30% reduction in carbohydrates.  But when people go on a diet, they preferentially dump the junk food: desserts, sodas, candies, French fries, etc.  So that 30% reduction in calories could end up translating to a 50% reduction in carbohydrates.  The dieters attribute any weight loss to cutting calories, when in fact cutting their carb intake in half might have triggered hormonal changes that made the weight loss possible.

Fair point.  But we have to apply the same logic to a low-carb diet.  When we decide to drastically reduce carbohydrates, most of us immediately give up wheat and sugar – both of which (if Robert Lustig and Paul Jaminet are correct) can induce insulin or leptin resistance.  Jaminet wrote this in the Perfect Health Diet book:

Wheat germ agglutinin binds to insulin receptors, triggering an insulin-like effect.  It is as effective as insulin at pushing glucose into cells and stopping the release of fat from fat cells.  This means eating wheat may block weight loss and promote weight gain, regardless of how many calories are eaten overall.

Almost every modern book on low-carb dieting also presents evidence to convince the reader that processed vegetable oils are garbage and should be replaced with natural saturated fats, which are beneficial.  So when people go on a low-carb diet, they give up what I consider the three worst offenders in the Standard American Diet:  gluten-containing grains, sugar and processed vegetable oils.  Meanwhile, formerly forbidden but nutrient-dense foods like eggs go back on the low-carb dieter’s menu.

So people make the big dietary shift, they lose weight, feel great, and their health improves.  We attribute that to giving up carbs.  But applying Gary Taubes’ logic, what if most of the health benefits come from giving up sugar, wheat and vegetable oils and replacing them with more meats, eggs and butter — and not so much from giving up potatoes and other “safe starches” that happen to be real foods containing real nutrients?

If so, then the real question here is: are people who switch from a high-carb frankenfood diet to a low-carb paleo diet better off with or without a potato to go along with their steak and broccoli?  Will they be healthier consuming no starches at all, or including small servings of “safe starches” in their diets?

That question always seems to spark a bit of dietary tribalism.  When Richard Nikoley announced a few years ago that he considers potatoes a paleo food and was eating them again, some of his readers replied that they were unsubscribing from his blog and would no longer read it.

Really? Because the guy eats home fries with his eggs?

In comments on my last post, I noticed some people resist the idea that anyone might actually become healthier by re-introducing small servings of safe starches or that perhaps they’re better off eating a bit of glucose instead of manufacturing it from protein or fat.  If you can’t live without potatoes, then by gosh, it means you’re sick, or carb-addicted, or giving into social pressure, or whatever.

Ugh. That’s the attitude I see (and don’t much like) among so many vegans:  this works for me, so damnit, it should work for you too, and if it doesn’t, there’s something wrong with you – morally if not physically.

As I said in one of my replies, we shouldn’t label ourselves and then cling to a diet or a belief in order to continue wearing the label.  This is about finding what works best for you, period.  There is no diet that’s ideal for everyone – and I’d say that about the Perfect Health Diet as well.  Let’s review what Chris Kresser said about safe starches:

I see a fair number of patients in my practice struggling with symptoms like hair loss, cold hands and feet, plateaued weight loss, low energy and mood imbalances after following a VLC diet for several months… In cases where there is no significant metabolic damage, when I have these folks increase their carbohydrate intake (with starch like tubers and white rice, and fruit) to closer to 150g a day, they almost always feel better. Their hair loss stops, their body temperature increases and their mood and energy improves.

Put some starch back in the diet, their health gets better.  Do we really want to tell those people they’re sick or carb-addicted and should stick to a diet that’s causing them to feel lousy and lose their hair?  I’m reminded of the old Vaudeville bit:

“Doctor, it hurts when I do this!”

“Then don’t do that.”

Those people need to stop doing that.  They need to switch from VLC to something like a Perfect Health Diet.  On the other hand, Kresser also said this:

In other cases, any increase in carbohydrate intake – in any form – will cause weight gain and other unpleasant symptoms.

Those are the people who shouldn’t adopt a Perfect Health Diet.  “Safe” starches aren’t safe for them.  I’ve heard from a few people (including Jimmy Moore) that consuming 100 grams or so of “safe starches” per day triggered a wild increase in their appetites and a craving for way more than those 100 grams.  Those are the true carb addicts, not the people who feel better after eating a potato with dinner.  And as addicts, yes, they should stay away from the foods that trigger the desire to binge.

When I decided to move my own diet towards more of a Perfect Health Diet, my reasoning boiled down to this:  I don’t see a downside, and I might be better off.  The “better off” part is mostly about gut health, for all the reasons I explained in my previous post. My new and improved diet is doing a better job of feeding my gut bacteria, and the rewards so far have been better digestion, deeper sleep and more energy – especially in the morning, when I’m not usually known for my peppy personality.

Back in the day, the downside would have been a glucose spike after eating a potato.  But after starting a protocol of resistant starch and probiotics (and cooking and cooling potatoes before reheating them), that isn’t happening.  If I eat a potato with dinner, my glucose peaks around 125 and then drops into the 90s.  My fasting glucose has fallen a bit too. My appetite and weight both increased a bit when I started eating more starches, then returned to normal.

So with a possible upside and no apparent downside, why the heck wouldn’t I eat a potato?

It hasn’t been a drastic change.  My diet is still high-fat and low-carb, just not as low-carb as before.  On most days, I’ll have a potato or sweet potato with lunch and another with dinner.  So instead of sausage and eggs, I’ll have eggs and a potato.  Or sausage and a potato.  I’ve had rice a few times, but frankly I don’t enjoy rice all that much.  I find it rather bland and unsatisfying.

The one real treat I’ve added – mostly on weekends – is Udi’s gluten-free bread, which makes nice, crunchy toast.  It’s made from tapioca and rice flour, the kind of flours Dr. Davis warns his Wheat Belly readers can seriously spike blood-sugar levels, so I checked my post-meal reaction a few times.  Nope, no big deal.  Up to around 120 or so, then back down to the 90s an hour later.

Meanwhile, the girls are quite happy that we’re including potatoes in more of our meals.  Last weekend, I made hash browns with onions fried in macadamia oil, melted some cheddar cheese on top, then served over-easy eggs on top of the hash browns.  Sara declared it the best breakfast ever and requested that I make it every Saturday.

Since there are potatoes in the house again, I also taught her to mimic the one line from an old Michael Nesmith comedy skit about learning Irish as a second language:  “My, that’s a foin sack ‘o’ potaaatoes.”  (You have to say it with a thick brogue.)

I don’t bother weighing or counting, but I’m probably not quite up to a Perfect Health Diet intake of starch.  I still like my meats, eggs and vegetables and they’re still the biggest components of my diet.  Toss in two medium potatoes, and it’s only about 60 or 70 grams of starch.  I don’t feel any need or desire to go higher.

So far the results have all been positive, but I’ll let you know if that changes.  Like I said, this is about finding what works, not wearing any particular dietary label.

Meanwhile, Paul Jaminet is receiving your questions and will probably have his answers ready next week.


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247 thoughts on “Safe Starches and Dietary Labels

    1. Jillm

      My experiment: Lunch – rump steak with spinach fried in butter. Blood glucose 4.9. A few days later – baked beans on bread and two pieces of fruit. Blood glucose 11.2.

      1. gollum

        Eating (V)LC causes technical insulin resistance.
        Same reason OGTT must be administered after eating carbs for days.

        Still sceptical; bugs making insulin act better may however explain success of oat regimen for DM2. Which we all dismissed as “yeah eat cardboard instead of syrup BG improves DUH” which of course is a part of the answer.

    2. Jackie

      I think I will look into this idea. I have reintroduced rice and I thought all was okay but today I had a good fist sized portion as recommended with PHD and found I was exhausted an hour later and then moody (defensive).

  1. Laurence Chalem

    Your almost wonderful article reminded me of my first semester calculus class from circa 1984, and that part right after discovering the shortcut to figuring out the area under a curve. We call that “taking the integral,” of course, and learned that, while derivatives can get you from point A exactly to point B, integrals can only go from point B back around the general vicinity of point A, but not exactly.

    If I haven’t lost you, the point of this story is that when taking the integral of anything, you always have to include “+ C” in your answer. If you don’t add “+ C” in your answer, your answer is wrong. Every time. Wrong. No C, no credit. No ticki, no washy.

    The same with your discussion. I am a type one diabetic and I’m sure there are others just like me in your audience. As well as just a few type twos. We cannot add the safe starches as easily as everyone else, the T1s even less so than the T2s. All your posts about the subject are wrong unless you always, always, always include some sort of disclosure–the + C of nutrition–to those discusions. Add some safe starches, but if you’re a type 2 diabetic, be very careful. If you’re a type one diabetic, you will definitely have to increase your insulin dose, so think extra carefully about it before you add those additional carbohydrates. Even better, go with the RS and skip the other “safe” starches.

    It wouldn’t only make me and your other diabetics happy, it won’t only make us feel included, it will make your answers correct.

    Thank you, best wishes, humbly… – lc

    1. Tom Naughton

      We would definitely want to reconsider all the calculations for diabetics of either type.

    2. Bret

      Sounds to me like somebody thinks Tom owes diabetics a special accounting of “how to apply these remarks.” If indeed that is true, I find that position wholly unreasonable.

      There are a lot of pathological conditions affecting metabolism in some way–epilepsy, gout, hypothyroidism, autoimmune disorders, and so on. Diabetes is just one type (okay, two types). Maybe I have Hashimoto’s disease, and I am a regular reader of Tom’s blog. Is it reasonable in the least of me to suggest he should always mention how a particular dietary angle might affect me? Of course not, and I don’t see any difference for diabetics.

      We are all responsible for taking care of ourselves. It would be foolish to pin that responsibility onto someone else who is just sharing information. In fact, a big reason we’re in this modern mess is that so many of us did exactly that (“Well, if the USDA says to eat 300-400 g of carbohydrate a day and avoid animal fat…”).

  2. Stephen B

    Tom, I agree with what you’re saying. I stayed on VLC for too long – about a year or so. I think I should have come off that diet as soon as the weight plateaued. I have a copy of the Perfect health Diet and need to give it another read. I have just planted a shed load of potatoes in the back garden so please don’t change your mind again before the autumn (Fall)!

    1. Tom Naughton

      If I change my mind again, Chareva won’t be happy with me. She’s planting a bunch of potatoes too.

  3. John Myers

    Eat real food. That’s 90% of good health. We can speculate about the other 10% but I think the ‘Eat real food’ bit is crucial. Blood sugar response is crucial as js290 says.
    Listen to your pants.

  4. Lori Miller

    Re: potatoes as a paleo food. Loren Cordain devotes a whole chapter on potatoes in The Paleo Answer. He says that potatoes have saponins, which can penetrate the intestine, especially in people who have diseases of chronic inflammation. Traditionally, certain varieties of potatoes had to be frozen, soaked and dried to detoxify them.

    I agree that some people shouldn’t eat potatoes just because of the carbohydrates. After all, you can use a plain baked potato to give yourself a home glucose test. http://www.phlaunt.com/diabetes/14046889.php

  5. Nads

    As well as my own reaction to the very low carb diet, I have known what you are saying to be true for quite some time. Here in Australia many followers of the books (by David Gillespie) Sweet Poison and Big Fat Lies have lost weight and regained health just by cutting out sugar and vegetable oils and introducing a good amoint of proper fats.

    A while back I found that I felt best and my appetite was least when I cycled in and out of mild ketosis. I am part of an LCHF group and there is so much resistance to resistant starch and upping carbs. Some dominant members have most convinced that they need to do under 20g of carbs, and be in deep ketosis. It just doesn’t suit everyone but the ones it does suit just do not have the insight or empathy to realise it doesn’t work the same way for everyone., and they tell people they aren’t doing it right and have to drop carbs even further It is exasperating!! I no lomger feel I belong in the group, but do feel I am still LCHF.

    1. Tom Naughton

      So their reply to “Doctor it hurts when I do this” is “Then do it even more.” Not a good idea.

    2. js290

      As Ron Rosedale has pointed out before, it’s not “ketosis” per se that you want. It’s the utilization of the ketone bodies as fuel. This may be why it was observed that the Inuits were not in ketosis. Ketosis is the unused ketone bodies. It’s probably incorrect to conclude the Inuits were on a “high protein” diet.

      1. Tom Naughton

        According to the studies Nikoley referenced, Inuit men consumed an average of 240 grams of protein per day. That’s high protein in my book.

  6. Nads

    Something I owuld love is more informed information about the cooking of various foods that have potential safe starches eg can unripe bananas be heated and still retain their resistant starch, is it actually true that cooked and cooled potatoes can be made into fries, are chips ok if they are made with ok oils? How much do potatoes need to be cooked before they can produce resistant starch ie cooked fully to soft? Or just blanched or par cooked? I have heard elsewhere that sweet potatoes aren’t a good source of RS. Are pumpkins (we eat them a lot in Australia – I think you may call them squash) a good source of RS, and is it the same thing with cooling them? How about white v brown rice?

    Are all these questions answered in either Chris Kressers or Paul Jaminet’s books?

    1. Tom Naughton

      No, the PHD book doesn’t get into RS to that extent. However, Richard, Tim and Grace are working on a book all about RS.

      The Jaminets recommend white rice instead of brown rice. Apparently the toxins in rice are in the brown husk.

      1. js290

        Brown rice and sorghum causes psoriasis for me within hours of ingesting food that came in contact with either one. Takes two weeks for the skin to clear back up.

        I suspect my brown rice eating years probably also caused my receding gums.

      2. Walter Bushell

        RE: Brown vs. White rice. At least in this country white rice is “enriched”. From my reading they use too much iron[1] for men and not enough for periodic women and folic acid instead of folate. As we age folic acid accumulates, because the conversion slows down and folic acid is toxic. The other nutrients are out of balance.

        For these reasons and others Dr.Paul Jaminet advises washing the white rice before eating.

        Perhaps the advantage of whole grains is avoiding the “enrichment????

        [1] Shooting at two targets with one bullet is generally considered inadvisable. This is why their are different
        vitamin supplements for men and periodic women even in the cheapest brands.

  7. Nads

    From last post – And how about rice crackers? And reheating rice noodles? How about konjac noodles?

    1. Tom Naughton

      No idea on those. If I tried them, I’d check my glucose reaction and decide from there.

    2. NancyM

      Konjac noodles are made with glucomannan. Not a resistant starch, but they’re indigestible (for you) and they’ll make your gut-bugs happy. I think glucomannan was mentioned several times in Tom’s interviews.

      I make “pudding” out of glucomannan.

  8. Azurean

    Nikoley was the one focusing on Inuits in the first place, I don’t remember them being the bread-and-butter (well, only butter) argument for very low-carb, just one “see, it’s possible” example among others.

    Anyway, let’s forget Inuits and talk about paleo starch sources. The wild tubes my European ancestors ate before agriculture had between 5% and 8% carbohydrates, were small, and had a boatload of fiber to turn into fat. Potatoes you buy in markets today have between 25% and 30% carbohydrates, are as big as your fist, and don’t contain much fiber. The “cook and cool” trick only marginally increases the resistant starch content (3.6% cooked to 4.3% cool, see http://www.eurekalert.org/pub_releases/2013-04/fi-rsc042513.php)

    That being said, I don’t have that much of a grudge against safe/resistant/whatever starches, if that works for you then it’s great. I would never had joined this debate if Jaminet and Nikoley didn’t take the “very low-carb will kill you” marketing approach.

    1. js290

      Yeah, I kind of wonder if those who have hair falling out and such, whether they were simply in a state of under nutrition. And, if by adding more starch sources, what they really did was simply add adequate amounts of food back to their diets. That is, would they have seen the same result by simply eating more of anything (fat or protein or carbs)?

      1. Tom Naughton

        That’s another version of “they weren’t doing it right.” Since these people were working with Chris Kresser to straighten out their diets, I think it’s highly unlikely he wouldn’t have noticed if the problem was simply that they weren’t eating enough. I think it’s more likely that some people really and truly don’t do well on a very-low-carb diet, no matter how many calories they consume.

        1. js290

          I guess my point is we can’t know for certain what they were doing. All we’ve heard is that some starches were added back. But, was it as an addition to or in replacement of other things? Were they eating other things that may be sensitive to but attribute it to VLC?

          It’s like Dr. Mary Vernon asking whose “Atkins diet” people are on. In general, we have to be careful about committing equivocation fallacy. It’s not logically possible for a well formulated ketogenic diet to be therapeutic and not-therapeutic at the same time.

          1. Tom Naughton

            But it’s entirely possible for the same well-formulated ketogenic diet to be therapeutic for you and problematic for someone else. Kresser is all about diet and health and tailoring the diet to the individual. So again, I think it’s unlikely that those patients would have done just fine on a very-low-carb diet if only he’d noticed a missing nutrient or a sensitivity to some other food that they coincidentally stopped eating when they were told to add potatoes to their diets.

            You keep coming back to some version of the “they didn’t do it right” argument. I take it that means you don’t want to accept that some people might actually need a bit of starch in their diets to avoid health problems?

    1. Jillm

      My experiment: Lunch – rump steak with spinach fried in butter. Blood glucose 4.9. A few days later – baked beans on bread and two pieces of fruit. Blood glucose 11.2.

      1. gollum

        Eating (V)LC causes technical insulin resistance.
        Same reason OGTT must be administered after eating carbs for days.

        Still sceptical; bugs making insulin act better may however explain success of oat regimen for DM2. Which we all dismissed as “yeah eat cardboard instead of syrup BG improves DUH” which of course is a part of the answer.

    2. Jackie

      I think I will look into this idea. I have reintroduced rice and I thought all was okay but today I had a good fist sized portion as recommended with PHD and found I was exhausted an hour later and then moody (defensive).

  9. Martin

    I am myself now experimenting with resistant starches and carb refeeds once a week (following Kiefer’s carbnite), and before I had stayed on a ketogenic diet for >3 years.

    According to Kiefer, it’s the insuline spike rather than carbs themselves that are important (unless one is an athlete and needs to replenish glycogen). Therefore I am avoiding adding fats to my carb dinners not to blunt the glucose and insulin spikes.

    I wonder to what extent, the extra starches are a good thing NOT because they supply carbs that are supposedly required for thyroid health and other processes, but because they 1) supply resistant starches, and (2) they lead to insulin spikes which, if occurring sporadically rather than chronically, increase insulin and leptin sensitivity.

  10. Laurence Chalem

    Your almost wonderful article reminded me of my first semester calculus class from circa 1984, and that part right after discovering the shortcut to figuring out the area under a curve. We call that “taking the integral,” of course, and learned that, while derivatives can get you from point A exactly to point B, integrals can only go from point B back around the general vicinity of point A, but not exactly.

    If I haven’t lost you, the point of this story is that when taking the integral of anything, you always have to include “+ C” in your answer. If you don’t add “+ C” in your answer, your answer is wrong. Every time. Wrong. No C, no credit. No ticki, no washy.

    The same with your discussion. I am a type one diabetic and I’m sure there are others just like me in your audience. As well as just a few type twos. We cannot add the safe starches as easily as everyone else, the T1s even less so than the T2s. All your posts about the subject are wrong unless you always, always, always include some sort of disclosure–the + C of nutrition–to those discusions. Add some safe starches, but if you’re a type 2 diabetic, be very careful. If you’re a type one diabetic, you will definitely have to increase your insulin dose, so think extra carefully about it before you add those additional carbohydrates. Even better, go with the RS and skip the other “safe” starches.

    It wouldn’t only make me and your other diabetics happy, it won’t only make us feel included, it will make your answers correct.

    Thank you, best wishes, humbly… – lc

    1. Tom Naughton Post author

      We would definitely want to reconsider all the calculations for diabetics of either type.

    2. Bret

      Sounds to me like somebody thinks Tom owes diabetics a special accounting of “how to apply these remarks.” If indeed that is true, I find that position wholly unreasonable.

      There are a lot of pathological conditions affecting metabolism in some way–epilepsy, gout, hypothyroidism, autoimmune disorders, and so on. Diabetes is just one type (okay, two types). Maybe I have Hashimoto’s disease, and I am a regular reader of Tom’s blog. Is it reasonable in the least of me to suggest he should always mention how a particular dietary angle might affect me? Of course not, and I don’t see any difference for diabetics.

      We are all responsible for taking care of ourselves. It would be foolish to pin that responsibility onto someone else who is just sharing information. In fact, a big reason we’re in this modern mess is that so many of us did exactly that (“Well, if the USDA says to eat 300-400 g of carbohydrate a day and avoid animal fat…”).

  11. Stephen B

    Tom, I agree with what you’re saying. I stayed on VLC for too long – about a year or so. I think I should have come off that diet as soon as the weight plateaued. I have a copy of the Perfect health Diet and need to give it another read. I have just planted a shed load of potatoes in the back garden so please don’t change your mind again before the autumn (Fall)!

    1. Tom Naughton Post author

      If I change my mind again, Chareva won’t be happy with me. She’s planting a bunch of potatoes too.

  12. John Myers

    Eat real food. That’s 90% of good health. We can speculate about the other 10% but I think the ‘Eat real food’ bit is crucial. Blood sugar response is crucial as js290 says.
    Listen to your pants.

  13. Lori Miller

    Re: potatoes as a paleo food. Loren Cordain devotes a whole chapter on potatoes in The Paleo Answer. He says that potatoes have saponins, which can penetrate the intestine, especially in people who have diseases of chronic inflammation. Traditionally, certain varieties of potatoes had to be frozen, soaked and dried to detoxify them.

    I agree that some people shouldn’t eat potatoes just because of the carbohydrates. After all, you can use a plain baked potato to give yourself a home glucose test. http://www.phlaunt.com/diabetes/14046889.php

  14. Nads

    As well as my own reaction to the very low carb diet, I have known what you are saying to be true for quite some time. Here in Australia many followers of the books (by David Gillespie) Sweet Poison and Big Fat Lies have lost weight and regained health just by cutting out sugar and vegetable oils and introducing a good amoint of proper fats.

    A while back I found that I felt best and my appetite was least when I cycled in and out of mild ketosis. I am part of an LCHF group and there is so much resistance to resistant starch and upping carbs. Some dominant members have most convinced that they need to do under 20g of carbs, and be in deep ketosis. It just doesn’t suit everyone but the ones it does suit just do not have the insight or empathy to realise it doesn’t work the same way for everyone., and they tell people they aren’t doing it right and have to drop carbs even further It is exasperating!! I no lomger feel I belong in the group, but do feel I am still LCHF.

    1. Tom Naughton Post author

      So their reply to “Doctor it hurts when I do this” is “Then do it even more.” Not a good idea.

    2. js290

      As Ron Rosedale has pointed out before, it’s not “ketosis” per se that you want. It’s the utilization of the ketone bodies as fuel. This may be why it was observed that the Inuits were not in ketosis. Ketosis is the unused ketone bodies. It’s probably incorrect to conclude the Inuits were on a “high protein” diet.

      1. Tom Naughton Post author

        According to the studies Nikoley referenced, Inuit men consumed an average of 240 grams of protein per day. That’s high protein in my book.

  15. Stephen

    So when you initially cook them do you boil them nd then to re-heat do you fry them in butter? Also how long is it ok to leave them in the refrigerator for? A day? Two max?

    Really enjoyed this post as well as the last few info dense posts, fun reads.

    Go raibh maith agat (your ancestors know what that means!)

    1. Tom Naughton

      I do the lazy version. I peel them and then nuke them. Then I stick them in the fridge. The Jaminets wrote in the book that they’ll cook a bunch of potatoes and stick them in fridge for the upcoming week, so I guess several days is fine. I’ve always eaten mine within two days, so I can’t say what a week would do to the texture. I can say freezing them makes them rubbery.

      1. BuckeyePeach

        Why do you peel? Personal preference? Or is something wrong with eating the peel?

    2. edella

      I boil my potatoes in my sous vide, as its sometimes under-utilised just ministering to me. No expensive plastic bag, just floating around in the water. I cook them at exactly the right temperature to cook a potato, but not more on the boil which might crumble them, which is why the sous vide is better than a pot if you are absent-minded. . And I cook them just long enough that they are done but not overcooked. Then they sit with their skins on in the fridge. I shred or cut them as needed, maybe remove the skins (or not) and they fry up perfectly for breakfast. Or I oil the skins and they make very speedy and floury baked potatoes. Or I use them cold for potato salad, I’m a type 2 diabetic so tend to have safe-ish starches and sugary roots like carrot in the morning in case more insulin is needed later on. I’m gradually increasing the basal insulin but there hasn’t been any great need so far for tons more fast acting insulin, no monumental spikes. a wonderful excuse to have a taste! (Arran pilot arrived this week, reddish purple and meant for baking…)But its early days yet, and all about trying things out. In the UK, a very good supermarket is selling little 1kg bags of posh heritage potatoes, so its a terrific excuse to have a taste!

  16. Nads

    Something I owuld love is more informed information about the cooking of various foods that have potential safe starches eg can unripe bananas be heated and still retain their resistant starch, is it actually true that cooked and cooled potatoes can be made into fries, are chips ok if they are made with ok oils? How much do potatoes need to be cooked before they can produce resistant starch ie cooked fully to soft? Or just blanched or par cooked? I have heard elsewhere that sweet potatoes aren’t a good source of RS. Are pumpkins (we eat them a lot in Australia – I think you may call them squash) a good source of RS, and is it the same thing with cooling them? How about white v brown rice?

    Are all these questions answered in either Chris Kressers or Paul Jaminet’s books?

    1. Tom Naughton Post author

      No, the PHD book doesn’t get into RS to that extent. However, Richard, Tim and Grace are working on a book all about RS.

      The Jaminets recommend white rice instead of brown rice. Apparently the toxins in rice are in the brown husk.

      1. js290

        Brown rice and sorghum causes psoriasis for me within hours of ingesting food that came in contact with either one. Takes two weeks for the skin to clear back up.

        I suspect my brown rice eating years probably also caused my receding gums.

      2. Walter Bushell

        RE: Brown vs. White rice. At least in this country white rice is “enriched”. From my reading they use too much iron[1] for men and not enough for periodic women and folic acid instead of folate. As we age folic acid accumulates, because the conversion slows down and folic acid is toxic. The other nutrients are out of balance.

        For these reasons and others Dr.Paul Jaminet advises washing the white rice before eating.

        Perhaps the advantage of whole grains is avoiding the “enrichment????

        [1] Shooting at two targets with one bullet is generally considered inadvisable. This is why their are different
        vitamin supplements for men and periodic women even in the cheapest brands.

  17. Nads

    From last post – And how about rice crackers? And reheating rice noodles? How about konjac noodles?

    1. Tom Naughton Post author

      No idea on those. If I tried them, I’d check my glucose reaction and decide from there.

    2. NancyM

      Konjac noodles are made with glucomannan. Not a resistant starch, but they’re indigestible (for you) and they’ll make your gut-bugs happy. I think glucomannan was mentioned several times in Tom’s interviews.

      I make “pudding” out of glucomannan.

  18. Azurean

    Nikoley was the one focusing on Inuits in the first place, I don’t remember them being the bread-and-butter (well, only butter) argument for very low-carb, just one “see, it’s possible” example among others.

    Anyway, let’s forget Inuits and talk about paleo starch sources. The wild tubes my European ancestors ate before agriculture had between 5% and 8% carbohydrates, were small, and had a boatload of fiber to turn into fat. Potatoes you buy in markets today have between 25% and 30% carbohydrates, are as big as your fist, and don’t contain much fiber. The “cook and cool” trick only marginally increases the resistant starch content (3.6% cooked to 4.3% cool, see http://www.eurekalert.org/pub_releases/2013-04/fi-rsc042513.php)

    That being said, I don’t have that much of a grudge against safe/resistant/whatever starches, if that works for you then it’s great. I would never had joined this debate if Jaminet and Nikoley didn’t take the “very low-carb will kill you” marketing approach.

    1. js290

      Yeah, I kind of wonder if those who have hair falling out and such, whether they were simply in a state of under nutrition. And, if by adding more starch sources, what they really did was simply add adequate amounts of food back to their diets. That is, would they have seen the same result by simply eating more of anything (fat or protein or carbs)?

      1. Tom Naughton Post author

        That’s another version of “they weren’t doing it right.” Since these people were working with Chris Kresser to straighten out their diets, I think it’s highly unlikely he wouldn’t have noticed if the problem was simply that they weren’t eating enough. I think it’s more likely that some people really and truly don’t do well on a very-low-carb diet, no matter how many calories they consume.

        1. js290

          I guess my point is we can’t know for certain what they were doing. All we’ve heard is that some starches were added back. But, was it as an addition to or in replacement of other things? Were they eating other things that may be sensitive to but attribute it to VLC?

          It’s like Dr. Mary Vernon asking whose “Atkins diet” people are on. In general, we have to be careful about committing equivocation fallacy. It’s not logically possible for a well formulated ketogenic diet to be therapeutic and not-therapeutic at the same time.

          1. Tom Naughton Post author

            But it’s entirely possible for the same well-formulated ketogenic diet to be therapeutic for you and problematic for someone else. Kresser is all about diet and health and tailoring the diet to the individual. So again, I think it’s unlikely that those patients would have done just fine on a very-low-carb diet if only he’d noticed a missing nutrient or a sensitivity to some other food that they coincidentally stopped eating when they were told to add potatoes to their diets.

            You keep coming back to some version of the “they didn’t do it right” argument. I take it that means you don’t want to accept that some people might actually need a bit of starch in their diets to avoid health problems?

            1. Michael

              ‘You keep coming back to some version of the “they didn’t do it right” argument.’

              I would have to say though that this goes for both ‘camps’. I’ve seen instances on FTA where someone who reports positive results within 10 minutes of first use — I kid you not, 10 minutes — is hailed as yet more evidence of PS’s wondrous powers, but someone who reports problems after trying for 3 weeks is told they didn’t try long enough or weren’t doing it right.

              Really, I think it’s just human nature to respond like this. Moreover, it could actually be true in many cases.

            2. js290

              A little bit of alcohol probably makes an alcoholic feel better, too, right? 🙂

              As I’ve said in the first response, each person should measure their BG response to the various foods they eat.

              But, I’m not convinced starch is some magical cure to hair falling out. I suspect hair falling out is probabaly a sign of deeper nutritional problems that’s associated with people with who use VLC diets to help solve other health issues.

              Nature would be pretty schizo to misuse a better fuel by making it both good and bad for you at the same time.

              From a metabolic flexibility perspective, the real question for me is how much glucose impairs one’s ability to effectively burn fat? This is the individual variability, but that’s what the BG meter is for. 🙂

              http://themedicalbiochemistrypage.org/fatty-acid-oxidation.php#cycle

            3. Tom Naughton Post author

              So the answer to my question is yes. Anyone who doesn’t thrive on a very-low-carb diet is somehow doing it wrong or has some other metabolic problem going on, because nobody, absolutely nobody, would need any starch in the diet to avoid thyroid problems or other health issues. It’s got to be something else. Does that sum it up?

            4. more or less

              This is so far on the VLC fringe, I wouldn’t bother reading anymore of his comments if I were you. If you want more delusions from their camp just google Cate Shanaham and Dr Rosedale.

  19. Martin

    I am myself now experimenting with resistant starches and carb refeeds once a week (following Kiefer’s carbnite), and before I had stayed on a ketogenic diet for >3 years.

    According to Kiefer, it’s the insuline spike rather than carbs themselves that are important (unless one is an athlete and needs to replenish glycogen). Therefore I am avoiding adding fats to my carb dinners not to blunt the glucose and insulin spikes.

    I wonder to what extent, the extra starches are a good thing NOT because they supply carbs that are supposedly required for thyroid health and other processes, but because they 1) supply resistant starches, and (2) they lead to insulin spikes which, if occurring sporadically rather than chronically, increase insulin and leptin sensitivity.

  20. Restist_This!

    Eating a 310g (after baking) potato for lunch with sour cream. Curious to see what by BG will do. Potato Starch has brought the fasting numbers down, though not in the 80’s yet.

    This post has summed up exactly what I’ve come to believe, but much better than I could have written. Everyone gets put in different nutritional camps, either from others’ or from their own choosing. It’s just like politics – kool-aid drinkers attack anyone not towing the line 100%. And just like how I have one foot in the conservative camp and one foot in the libertarian camp, I’m split between LCHF, paleo and PHD (which I just bought). I see PHD as the libertarians…a little from all the groups but more logically consistent and less extreme. Not nearly as much cognitive dissonance, irrationality, and unwarranted “party” loyalty that you see in conservative/liberal/vegan/LCHF groups.

    I still read/listen to material from all of these groups and if it has merit, I’ll incorporate it into my ‘diet’, whatever name someone wants to give it. WFLCSS – Whole Food Low Carb w/Safe Starch? 😉

    Rant over.

    Beans – I realize they don’t have as much RS as potatoes, but why don’t we hear more about them in the new WFLCSS movement?

    1. Tom Naughton

      The Jaminets actually advise their readers to avoid most beans. They call beans “almost grains.”

  21. Tammy

    Tom – I like your post and it’s 100% true. I look at it in the frame of Weston Price – people all over the world eating all sorts of traditional diets and remaining perfectly healthy. I view the whole spectrum of Atkins/Paleo/Primal/PH Diet/Weston Price as all low carb compared to SAD anyway. I’m a big fan of the original Atkins diet as it worked great for me but Induction is only the first two weeks when you reset your body. I eat rice, I love sushi. Potatoes I never have liked so I don’t worry about it but I don’t fault anyone for eating them. They are real food, no manufactured in some factory in NJ after all.

    1. Tom Naughton

      I think Weston A. Price got it right too. It’s about nutrient density more than anything else. Eat a diet that provides all the necessary nutrients, and it will almost certainly be quite a bit lower in carbs than the Standard American Diet, which is based largely on nutrient-poor grains.

  22. Kathy from Maine

    I’m almost through reading PHD, and find it fascinating, especially all the scientific studies he mentions. The one that blew me away is in Chapter 8 under the heading “Nutrients Are Not Food.” In one study, one set of lab mice/rats were fed “chow” (seeds, grains, beans, and alfalfa, foods similar to what rodents eat in the wild) and another set were fed a “purified-nutrient diet” (protein, starch, sugar, fiber, fat, vitamins, and minerals). The rodents that ate the purified-nutrient diets were worse off in terms of health and it often made them fat. He goes on to say these types of diets are unhealthy because they’re malnourishing, as they are lacking in many of the trace nutrients that are found in real food. He then makes the connection between that and what many (definitely not all) people do when trying to lose weight: they start relying on shakes and meal replacement bars. Guilty as charged!

    Quick question. I made mashed potatoes the other night. I used white “boiling” potatoes and boiled them in their skins. Then I refrigerated them overnight. Next night I peeled several of the potatoes and mashed them with butter and some heavy cream, and then nuked them. Three minutes on medium brought the temp up to around 110 degrees, which was plenty hot enough to melt butter on top. So far, so good. But then we ate them. They were gluey and tasted pretty bad.

    Did I use the wrong kind of potato?

    I looked up online which potatoes to use for which purpose, and the site said to use “waxy” potatoes (also called boiling potatoes) with a thin skin for hashed browns and potato salads. It said to save russets for baked potatoes.

    I also tried to use one of the cooked and cooled potatoes for hashed browns this morning, but it didn’t shred very well and tasted pretty bad. Wrong texture or something.

    Any advice here?

    1. Tom Naughton

      Not sure if the type of potato makes a difference. For hash browns, I shredded them raw, then nuked them for about 2 1/2 minutes. Then I cooled them in the fridge. Then I fried them in macadamia oil and they tasted great. Good texture too.

      1. edella

        The type of potato makes ALL the difference, or at least so my -I-l from Lancashire said. She was very specific when buying potatoes, and bought the variety for the specific dish. She was quite scornful towards lazy south cost cooks who thought the only names for a potato were ‘white’ or ‘red’. My current experiments tell me that a mashed potato is for pleasure not RS. Cooling just doesn’t improved a mashed or baked potato as far as I’m concerned. My hash browns come out OK, but I think this is where the sous vide comes in, because I’m able to usually avoid overcooking them and triggering the dread glue reaction. (I suspect the vast quantities of onion and duck fat that I add to the shredded potatoes also helps.)

        1. Kathy from Maine

          I had it wrong about choosing boiling potatoes when making mashed potatoes. I found the following list online. Prior to going LC around 1998, my potato of choice was the Russet for everything. Seemed to make the best baked, mashed, and potato salad potato all around.

          Best for baking: russet potato

          Best for potato salads, gratins, and scalloped potatoes: russet, new potato, red-skinned potato, white round potato

          Best for mashing: russet potato, Yukon gold potato

          Best for soups and chowders: Yukon gold potato, red-skinned potato, white round potato

          Best for pan-frying: red-skinned potatoes, white round potatoes, new potatoes, and fingerling potatoes

          Best for French fries: russet potato

          Best for purees: fingerling potatoes

          Best for roasting: new potatoes

          Best for steaming: new potatoes, Yukon gold potatoes

          Best for potato pancakes: russet potato, Yukon Gold potato

          To answer Erica, a “boiling potato” is simply a small white potato with a thin skin. I won’t buy these again, though, because they turn to glue when mashed.

          BTW, I’m beginning to think that at least some of my current issues were caused by my many years of very-low-carb eating (30 grams or fewer of carbs). Not that I’ll ever admit that in public! 🙂

          1. Kristin

            Kathy, you got it figured out. The floury potatoes are primo for baking and for mashed potatoes.

            I’ve been experimenting with mashed potatoes making about a two cup finished batch and reheating for 4-6 servings nor more than one a day. I hadn’t heard about mashers being exempt from RS but I can say that I haven’t had an appreciable BS rise.

            I have not had gluey potatoes even on several reheatings. My method is to well boil the peeled potatoes, add a lot of butter and some cream cheese and mash them. Then add a little cream to get the consistency. I then cool and put in fridge. I reheat a serving on the stove over low heat in a heavy-walled small saucepan (I have an All-clad butter warmer that is outstanding for reheating for just me.) It may be all the fat or the controlled reheat on the stove but every serving tastes fabulous.

    2. Roy GA

      I’ve heard that mashed potatoes can get gluey if you over-whip them, like with an electric mixer.

    3. Erica

      I make mashed potatoes with Russet potatoes and they are great. I haven’t tried boiling and cooling them first, though that experiment is on my agenda. What is a ‘boiling’ potato? I find that red skin potatoes are too waxy for mashed, but do make great potato salad.

      Tom, thanks for that little tutorial in making hash browns. I wondered how to do it!

    4. Elle

      You may have overcooked the potatoes to begin with. The starches exploded and made a gluey texture. Boil them a bit less and be a little more gentle in the mashing. Waxy potatoes are more prone to this.

  23. Mike

    Tom,

    Thanks for an interesting series of posts. The Jaminets owe my download of their book to you.

    I’ve read on a few other blogs (MDA, Dr. Attia) about the same general idea. Incorporating a few starches/carbs back into the diet with at least initial good results.

    Do you think the effect may be different depending where you are in the “correcting my screwed up energy metabolism/insulin resistance” journey?

    1. Tom Naughton

      Absolutely. I think the effects can also be different because of genetic heritage, without there necessarily being any damage to correct.

  24. Dave L

    I always figured that eating for health and wellness should never become a religion. There can be room for the occasional “cheat” junk food. And it’s all too possible to become overdependent on a small set of “health” foods. For example, although I love almond flour, surely having it at every meal in some form might not be a good idea.

    I can apparently eat some starches and a small amount of sugars without weight gain. I even like sprouted grain wheat bread, just not 6-11 servings daily as suggested by the government. And that’s the whole point: I’m still consuming nowhere near the amount of carbohydrates, especially refined carbs, that I did a few years ago.

    1. Tom Naughton

      That’s why I like Mark Sisson’s 80/20 rule, although I’d add the caveat that if the occasional cheat sparks a binge, you shouldn’t cheat at all.

      1. Elenor

        I had a huge laugh the other day: I had worked very hard to lead a friend into going Paleo (we did a 30-day challenge — and then tried to keep on being somewhat strict after it). I kept telling him, leading up to it, about Mark Sisson and “his 80/20 rule.”

        A week or so after the challenge — I heard a podcast with Mark where he ruefully pointed out that he did NOT say it was okay to go for 80% strict — he said to SHOOT for 100 and you’ll probably hit 80… (I don’t remember if he said — or if my friend and I concluded — that shooting for 80 probably means only hitting 60!)

  25. Boundless

    “It’s made from tapioca and rice flour, the kind of flours Dr. Davis warns his Wheat Belly readers can seriously spike blood-sugar levels, so I checked my post-meal reaction a few times. Nope, no big deal. Up to around 120 or so, then back down to the 90s an hour later.”

    Couple of remarks on that:

    1. Davis advocates a fasting BG no higher than 90, and a postprandial no higher than 100, but optimally NO RISE at all postprandial. The numbers you’ve reported for yourself would likely raise eyebrows at both the Davis and Perlmutter offices. There’s also HbA1c to consider, and home testers are available for that. The Davis/Perlmutter target: 5.0% max.

    2. Rice contains wheat germ agglutinin, which appears in your PHD quote above. There is apparently no lower limit of toxicity for this stuff. Some UK researchers looked into using WGA as a carrier for a drug they were working on, but first did some WGA safety testing. It failed.

    I suspect that in the future BG target ranges are going to shift. But my bet is down rather than up. Personally, I don’t even test my own, but I’m planning to, just out of curiosity.

    1. Tom Naughton

      Yeah, the post-meal BG recommendations depend on who you ask. Davis said 125 in a speech he gave on one of the first low-carb cruises, now apparently it’s 100. Jaminet says the peak should be no more than 140 and come down within an hour.

      I’m curious about WGA in rice. Jaminet is quite adamant about avoiding WGA, but considers white rice a safe starch. So I wonder if the WGA is in the brown rice but not the white rice.

      1. Elenor

        How can *wheat* germ agglutinin be in rice? Rice is not at all wheat? ((Brown) Rice has a ‘germ’ but it can’t be wheat, can it?)

  26. Stephen

    So when you initially cook them do you boil them nd then to re-heat do you fry them in butter? Also how long is it ok to leave them in the refrigerator for? A day? Two max?

    Really enjoyed this post as well as the last few info dense posts, fun reads.

    Go raibh maith agat (your ancestors know what that means!)

    1. Tom Naughton Post author

      I do the lazy version. I peel them and then nuke them. Then I stick them in the fridge. The Jaminets wrote in the book that they’ll cook a bunch of potatoes and stick them in fridge for the upcoming week, so I guess several days is fine. I’ve always eaten mine within two days, so I can’t say what a week would do to the texture. I can say freezing them makes them rubbery.

      1. BuckeyePeach

        Why do you peel? Personal preference? Or is something wrong with eating the peel?

          1. Bryan Harris

            That’s funny, growing up everyone always said the potato skin was good for me. I thought it tasted gross in mashed potatoes and never wanted to eat it.

            1. Tom Naughton Post author

              Yeah, I remember when we were told the skin was the only nutritious part. That’s probably part of the reason potato skins became popular.

    2. edella

      I boil my potatoes in my sous vide, as its sometimes under-utilised just ministering to me. No expensive plastic bag, just floating around in the water. I cook them at exactly the right temperature to cook a potato, but not more on the boil which might crumble them, which is why the sous vide is better than a pot if you are absent-minded. . And I cook them just long enough that they are done but not overcooked. Then they sit with their skins on in the fridge. I shred or cut them as needed, maybe remove the skins (or not) and they fry up perfectly for breakfast. Or I oil the skins and they make very speedy and floury baked potatoes. Or I use them cold for potato salad, I’m a type 2 diabetic so tend to have safe-ish starches and sugary roots like carrot in the morning in case more insulin is needed later on. I’m gradually increasing the basal insulin but there hasn’t been any great need so far for tons more fast acting insulin, no monumental spikes. a wonderful excuse to have a taste! (Arran pilot arrived this week, reddish purple and meant for baking…)But its early days yet, and all about trying things out. In the UK, a very good supermarket is selling little 1kg bags of posh heritage potatoes, so its a terrific excuse to have a taste!

  27. JD

    It’s really hard not to eat what’s considered a low carb diet when you give up processed sugar/starches, vegetable oils, legumes, and wheat products. If you wanted to eat a high carb diet with those restrictions you would have to do something like the 30 bananas a day route, and it’s really really hard to eat than volume of food on a daily basis.

    When I was 25 I went on the South Beach diet, which is a lower fat low carb diet. The weight just melted off at a ridiculous rate, even with my one cheat meal a week. Now at 35 I find if I want to lose weight without exercising I really need to do the ketogenic route and lower both carbs and protein. I became convinced after reading Jimmy Moore’s n=1 posts that this might be the case (for those that don’t know after gaining 10-15 lbs a year eating a low carb diet he spent a year making sure he was in ketosis by measuring blood ketones and lost it all). I also suspect this would be the case for most people as long as there are no thyroid or other hormone issues. So I think there is something to Taube’s logic of the lower the carbs the lower the weight, but I also think 90% of the health benefits of a low carb diet come from giving up process flours and sugars, vegetable oils, wheat products, and for those that are sensitive but might not know it legumes.

    1. Tom Naughton

      It’s all about individual variability, like Chris Kresser pointed out. Some people lose more weight if they include a few starches, probably because of a better-functioning thyroid. Others like you and Jimmy gain weight if they include any starches. So we’ve all got to find what works for us, then avoid falling into the mental trap of thinking if it works for me, it should work for everyone.

  28. Katja

    I am so glad that you are one of the few not sticking to self inflicted dogmas. Life is not black and white, why should anything else be that way. I have never followed a very strict low carb diet, but I stuck to real foods. I just felt better that way. And I just shook my head at people (like some vegans) always followed up on issues and concerns with “I must not be doing it right, I need to be even stricter”. I once read about a woman who decided to be soooo low carb that she would eat nothing but steak. Every day. This sounds like another form of an eating disorder. And I would rather live shorter than living that restrictedly day in and day out.

    I am glad to see that my instincts overall are somewhat confirmable with data. Sometimes trusting intuition and instinct is frowned upon, but so far listening to my desires and body has worked well for me.

    My major change over the last few years was to accept that bread is “highly processed” and thus does not cound as real food. As a German that is equal to blasphemie and my parents are in shock. I generally do not eat replacement breads as I personally do not miss it that much, although, there are instances where I made pancakes for kids and family utilizing other forms of flour. Occassionally, I buy gluten free bread for the family, but generally not so much. I am just not very good with or like replacement foods. But I think everyone needs to determine their own way of healthy living. There is no black and white as I stated before.

    What I find the strangest is how difficult it is to get the generation before me to accept that dietary advice is changing. My partents in law still believe eggs and butter are the devil and should only be consumed on a rare occassion — Apparently, deviled eggs are called that way for a reason. They cook fat free (what the heck is fat free half and half?) and they think cereal is the best food possible. No matter what I say they think I am crazy or insane or both. So, I will stop talking soon.

    My mother drives me equally crazy with her re-assuance that “she did not really need meat with her meal” like she always feels she needs to apologize for eating any. I would rather her not apologize, but buy her animal products consciously and humanly. I am ok with not eating meat every day or not at all if it works for you, but do not always apologize for what you eat.

    1. Tom Naughton

      “Self-inflicted dogma” is an excellent description for what some people do to themselves.

  29. Lindy

    I have read (not only) the last 2 post & listened to the podcast (Jimmy Moore) and decided to add some safe starch back in to my diet. Some days I just flat run out of energy. And it is all about what works for us as individuals. Thanks for the great explanation.

  30. Gerard Pinzone (@GerardPinzone

    Even the Atkins diet talks about introducing carbohydrates back into the diet as long as they can be tolerated. Unfortunately, I think I’m one of those carb sensitive folks who need to stay in induction.

    Paleo folks are hard to nail down because they’re so splintered. I like the idea of paleo being a template rather than a diet. Otherwise you get all sorts of nuttiness like sugar is bad because it’s not ancestral, but bananas are okay even though bananas were first domesticated around 8,000-9,000 years ago. I don’t cringe at the idea of resistant starch because by definition it shouldn’t increase blood sugar. By the same token, I don’t cringe at resistant starch from corn, either. Unless there’s evidence that corn-based resistant starch has side effects nightshade-based resistant starch doesn’t, I’m more than happy to view them equally.

    1. Tom Naughton

      My beef with the hi-maize RS people isn’t so much that it comes from corn, it’s that they’re promoting it as a method of adding a wee bit of RS to muffins and other junk to turn them into “health food.”

  31. kats612

    Tom, I am just loving these latest blogs! Thank you, thank you, thank you. I have purchased PHD and will read it on the cruise (that you’re not going to be on! Darn it! I was looking forward to meeting you and Chareva!)

    I don’t want to start anything new just prior to vacationing, but will give this some serious thought once we get home. This is exciting stuff and I probably would not have ventured into this “unknown” realm had you not blogged about it. I have many of the issues that others have experienced going very low carb, such as cold hands and feet, hypothyroid, low energy…where I used to have high energy when I first started. Also, my weight has slowly been creeping back up over the last 2 years. So, for me, this is very exciting! And not just so I can have potatoes again! lol

    Thanks again 🙂

    1. Tom Naughton

      Sorry I won’t meet you on the cruise this year, but I hope PHD turns out to be what you need. Sounds like you fit the profile of the person who does better with a bit of starch in the diet.

  32. Restist_This!

    Eating a 310g (after baking) potato for lunch with sour cream. Curious to see what by BG will do. Potato Starch has brought the fasting numbers down, though not in the 80’s yet.

    This post has summed up exactly what I’ve come to believe, but much better than I could have written. Everyone gets put in different nutritional camps, either from others’ or from their own choosing. It’s just like politics – kool-aid drinkers attack anyone not towing the line 100%. And just like how I have one foot in the conservative camp and one foot in the libertarian camp, I’m split between LCHF, paleo and PHD (which I just bought). I see PHD as the libertarians…a little from all the groups but more logically consistent and less extreme. Not nearly as much cognitive dissonance, irrationality, and unwarranted “party” loyalty that you see in conservative/liberal/vegan/LCHF groups.

    I still read/listen to material from all of these groups and if it has merit, I’ll incorporate it into my ‘diet’, whatever name someone wants to give it. WFLCSS – Whole Food Low Carb w/Safe Starch? 😉

    Rant over.

    Beans – I realize they don’t have as much RS as potatoes, but why don’t we hear more about them in the new WFLCSS movement?

    1. Tom Naughton Post author

      The Jaminets actually advise their readers to avoid most beans. They call beans “almost grains.”

  33. Tammy

    Tom – I like your post and it’s 100% true. I look at it in the frame of Weston Price – people all over the world eating all sorts of traditional diets and remaining perfectly healthy. I view the whole spectrum of Atkins/Paleo/Primal/PH Diet/Weston Price as all low carb compared to SAD anyway. I’m a big fan of the original Atkins diet as it worked great for me but Induction is only the first two weeks when you reset your body. I eat rice, I love sushi. Potatoes I never have liked so I don’t worry about it but I don’t fault anyone for eating them. They are real food, no manufactured in some factory in NJ after all.

    1. Tom Naughton Post author

      I think Weston A. Price got it right too. It’s about nutrient density more than anything else. Eat a diet that provides all the necessary nutrients, and it will almost certainly be quite a bit lower in carbs than the Standard American Diet, which is based largely on nutrient-poor grains.

  34. Kathy from Maine

    I’m almost through reading PHD, and find it fascinating, especially all the scientific studies he mentions. The one that blew me away is in Chapter 8 under the heading “Nutrients Are Not Food.” In one study, one set of lab mice/rats were fed “chow” (seeds, grains, beans, and alfalfa, foods similar to what rodents eat in the wild) and another set were fed a “purified-nutrient diet” (protein, starch, sugar, fiber, fat, vitamins, and minerals). The rodents that ate the purified-nutrient diets were worse off in terms of health and it often made them fat. He goes on to say these types of diets are unhealthy because they’re malnourishing, as they are lacking in many of the trace nutrients that are found in real food. He then makes the connection between that and what many (definitely not all) people do when trying to lose weight: they start relying on shakes and meal replacement bars. Guilty as charged!

    Quick question. I made mashed potatoes the other night. I used white “boiling” potatoes and boiled them in their skins. Then I refrigerated them overnight. Next night I peeled several of the potatoes and mashed them with butter and some heavy cream, and then nuked them. Three minutes on medium brought the temp up to around 110 degrees, which was plenty hot enough to melt butter on top. So far, so good. But then we ate them. They were gluey and tasted pretty bad.

    Did I use the wrong kind of potato?

    I looked up online which potatoes to use for which purpose, and the site said to use “waxy” potatoes (also called boiling potatoes) with a thin skin for hashed browns and potato salads. It said to save russets for baked potatoes.

    I also tried to use one of the cooked and cooled potatoes for hashed browns this morning, but it didn’t shred very well and tasted pretty bad. Wrong texture or something.

    Any advice here?

    1. Tom Naughton Post author

      Not sure if the type of potato makes a difference. For hash browns, I shredded them raw, then nuked them for about 2 1/2 minutes. Then I cooled them in the fridge. Then I fried them in macadamia oil and they tasted great. Good texture too.

      1. edella

        The type of potato makes ALL the difference, or at least so my -I-l from Lancashire said. She was very specific when buying potatoes, and bought the variety for the specific dish. She was quite scornful towards lazy south cost cooks who thought the only names for a potato were ‘white’ or ‘red’. My current experiments tell me that a mashed potato is for pleasure not RS. Cooling just doesn’t improved a mashed or baked potato as far as I’m concerned. My hash browns come out OK, but I think this is where the sous vide comes in, because I’m able to usually avoid overcooking them and triggering the dread glue reaction. (I suspect the vast quantities of onion and duck fat that I add to the shredded potatoes also helps.)

        1. Kathy from Maine

          I had it wrong about choosing boiling potatoes when making mashed potatoes. I found the following list online. Prior to going LC around 1998, my potato of choice was the Russet for everything. Seemed to make the best baked, mashed, and potato salad potato all around.

          Best for baking: russet potato

          Best for potato salads, gratins, and scalloped potatoes: russet, new potato, red-skinned potato, white round potato

          Best for mashing: russet potato, Yukon gold potato

          Best for soups and chowders: Yukon gold potato, red-skinned potato, white round potato

          Best for pan-frying: red-skinned potatoes, white round potatoes, new potatoes, and fingerling potatoes

          Best for French fries: russet potato

          Best for purees: fingerling potatoes

          Best for roasting: new potatoes

          Best for steaming: new potatoes, Yukon gold potatoes

          Best for potato pancakes: russet potato, Yukon Gold potato

          To answer Erica, a “boiling potato” is simply a small white potato with a thin skin. I won’t buy these again, though, because they turn to glue when mashed.

          BTW, I’m beginning to think that at least some of my current issues were caused by my many years of very-low-carb eating (30 grams or fewer of carbs). Not that I’ll ever admit that in public! 🙂

          1. Kristin

            Kathy, you got it figured out. The floury potatoes are primo for baking and for mashed potatoes.

            I’ve been experimenting with mashed potatoes making about a two cup finished batch and reheating for 4-6 servings nor more than one a day. I hadn’t heard about mashers being exempt from RS but I can say that I haven’t had an appreciable BS rise.

            I have not had gluey potatoes even on several reheatings. My method is to well boil the peeled potatoes, add a lot of butter and some cream cheese and mash them. Then add a little cream to get the consistency. I then cool and put in fridge. I reheat a serving on the stove over low heat in a heavy-walled small saucepan (I have an All-clad butter warmer that is outstanding for reheating for just me.) It may be all the fat or the controlled reheat on the stove but every serving tastes fabulous.

    2. Roy GA

      I’ve heard that mashed potatoes can get gluey if you over-whip them, like with an electric mixer.

    3. Erica

      I make mashed potatoes with Russet potatoes and they are great. I haven’t tried boiling and cooling them first, though that experiment is on my agenda. What is a ‘boiling’ potato? I find that red skin potatoes are too waxy for mashed, but do make great potato salad.

      Tom, thanks for that little tutorial in making hash browns. I wondered how to do it!

    4. Elle

      You may have overcooked the potatoes to begin with. The starches exploded and made a gluey texture. Boil them a bit less and be a little more gentle in the mashing. Waxy potatoes are more prone to this.

  35. Mike

    Tom,

    Thanks for an interesting series of posts. The Jaminets owe my download of their book to you.

    I’ve read on a few other blogs (MDA, Dr. Attia) about the same general idea. Incorporating a few starches/carbs back into the diet with at least initial good results.

    Do you think the effect may be different depending where you are in the “correcting my screwed up energy metabolism/insulin resistance” journey?

    1. Tom Naughton Post author

      Absolutely. I think the effects can also be different because of genetic heritage, without there necessarily being any damage to correct.

  36. Dave L

    I always figured that eating for health and wellness should never become a religion. There can be room for the occasional “cheat” junk food. And it’s all too possible to become overdependent on a small set of “health” foods. For example, although I love almond flour, surely having it at every meal in some form might not be a good idea.

    I can apparently eat some starches and a small amount of sugars without weight gain. I even like sprouted grain wheat bread, just not 6-11 servings daily as suggested by the government. And that’s the whole point: I’m still consuming nowhere near the amount of carbohydrates, especially refined carbs, that I did a few years ago.

    1. Tom Naughton Post author

      That’s why I like Mark Sisson’s 80/20 rule, although I’d add the caveat that if the occasional cheat sparks a binge, you shouldn’t cheat at all.

      1. Elenor

        I had a huge laugh the other day: I had worked very hard to lead a friend into going Paleo (we did a 30-day challenge — and then tried to keep on being somewhat strict after it). I kept telling him, leading up to it, about Mark Sisson and “his 80/20 rule.”

        A week or so after the challenge — I heard a podcast with Mark where he ruefully pointed out that he did NOT say it was okay to go for 80% strict — he said to SHOOT for 100 and you’ll probably hit 80… (I don’t remember if he said — or if my friend and I concluded — that shooting for 80 probably means only hitting 60!)

  37. Boundless

    “It’s made from tapioca and rice flour, the kind of flours Dr. Davis warns his Wheat Belly readers can seriously spike blood-sugar levels, so I checked my post-meal reaction a few times. Nope, no big deal. Up to around 120 or so, then back down to the 90s an hour later.”

    Couple of remarks on that:

    1. Davis advocates a fasting BG no higher than 90, and a postprandial no higher than 100, but optimally NO RISE at all postprandial. The numbers you’ve reported for yourself would likely raise eyebrows at both the Davis and Perlmutter offices. There’s also HbA1c to consider, and home testers are available for that. The Davis/Perlmutter target: 5.0% max.

    2. Rice contains wheat germ agglutinin, which appears in your PHD quote above. There is apparently no lower limit of toxicity for this stuff. Some UK researchers looked into using WGA as a carrier for a drug they were working on, but first did some WGA safety testing. It failed.

    I suspect that in the future BG target ranges are going to shift. But my bet is down rather than up. Personally, I don’t even test my own, but I’m planning to, just out of curiosity.

    1. Tom Naughton Post author

      Yeah, the post-meal BG recommendations depend on who you ask. Davis said 125 in a speech he gave on one of the first low-carb cruises, now apparently it’s 100. Jaminet says the peak should be no more than 140 and come down within an hour.

      I’m curious about WGA in rice. Jaminet is quite adamant about avoiding WGA, but considers white rice a safe starch. So I wonder if the WGA is in the brown rice but not the white rice.

      1. Elenor

        How can *wheat* germ agglutinin be in rice? Rice is not at all wheat? ((Brown) Rice has a ‘germ’ but it can’t be wheat, can it?)

  38. Bret

    I admire Jimmy Moore for showcasing people whose beliefs are not 100% the same as his own–otherwise, we turn into a religious congregation, as Dave L aptly analogized above. On the specific topic of RS, Jimmy said he would like to conduct another n=1 experiment with such a focus. That blogger who thinks you two are in a rift over RS probably ought to get his/her head examined and learn to daydream less.

    I have noticed a fairly deep mid-morning tiredness recently, accompanied sometimes by difficulty concentrating, despite eating an extremely low-carb diet. My initial suspicion was that my daily 18-oz travel mug of coffee was wearing my adrenals down, but now I’m willing to bet that those symptoms were largely due to the gluconeogenesis I was forcing my body to undertake. I’ll explore the latter experiment first (I love my coffee!).

    1. Tom Naughton

      A little safe starch perhaps, some resistant starch, then see what happens.

      The blogger who thinks we’re in a rift has a suspicious mind, to put it mildly.

  39. JD

    It’s really hard not to eat what’s considered a low carb diet when you give up processed sugar/starches, vegetable oils, legumes, and wheat products. If you wanted to eat a high carb diet with those restrictions you would have to do something like the 30 bananas a day route, and it’s really really hard to eat than volume of food on a daily basis.

    When I was 25 I went on the South Beach diet, which is a lower fat low carb diet. The weight just melted off at a ridiculous rate, even with my one cheat meal a week. Now at 35 I find if I want to lose weight without exercising I really need to do the ketogenic route and lower both carbs and protein. I became convinced after reading Jimmy Moore’s n=1 posts that this might be the case (for those that don’t know after gaining 10-15 lbs a year eating a low carb diet he spent a year making sure he was in ketosis by measuring blood ketones and lost it all). I also suspect this would be the case for most people as long as there are no thyroid or other hormone issues. So I think there is something to Taube’s logic of the lower the carbs the lower the weight, but I also think 90% of the health benefits of a low carb diet come from giving up process flours and sugars, vegetable oils, wheat products, and for those that are sensitive but might not know it legumes.

    1. Tom Naughton Post author

      It’s all about individual variability, like Chris Kresser pointed out. Some people lose more weight if they include a few starches, probably because of a better-functioning thyroid. Others like you and Jimmy gain weight if they include any starches. So we’ve all got to find what works for us, then avoid falling into the mental trap of thinking if it works for me, it should work for everyone.

  40. Katja

    I am so glad that you are one of the few not sticking to self inflicted dogmas. Life is not black and white, why should anything else be that way. I have never followed a very strict low carb diet, but I stuck to real foods. I just felt better that way. And I just shook my head at people (like some vegans) always followed up on issues and concerns with “I must not be doing it right, I need to be even stricter”. I once read about a woman who decided to be soooo low carb that she would eat nothing but steak. Every day. This sounds like another form of an eating disorder. And I would rather live shorter than living that restrictedly day in and day out.

    I am glad to see that my instincts overall are somewhat confirmable with data. Sometimes trusting intuition and instinct is frowned upon, but so far listening to my desires and body has worked well for me.

    My major change over the last few years was to accept that bread is “highly processed” and thus does not cound as real food. As a German that is equal to blasphemie and my parents are in shock. I generally do not eat replacement breads as I personally do not miss it that much, although, there are instances where I made pancakes for kids and family utilizing other forms of flour. Occassionally, I buy gluten free bread for the family, but generally not so much. I am just not very good with or like replacement foods. But I think everyone needs to determine their own way of healthy living. There is no black and white as I stated before.

    What I find the strangest is how difficult it is to get the generation before me to accept that dietary advice is changing. My partents in law still believe eggs and butter are the devil and should only be consumed on a rare occassion — Apparently, deviled eggs are called that way for a reason. They cook fat free (what the heck is fat free half and half?) and they think cereal is the best food possible. No matter what I say they think I am crazy or insane or both. So, I will stop talking soon.

    My mother drives me equally crazy with her re-assuance that “she did not really need meat with her meal” like she always feels she needs to apologize for eating any. I would rather her not apologize, but buy her animal products consciously and humanly. I am ok with not eating meat every day or not at all if it works for you, but do not always apologize for what you eat.

    1. Tom Naughton Post author

      “Self-inflicted dogma” is an excellent description for what some people do to themselves.

  41. Lindy

    I have read (not only) the last 2 post & listened to the podcast (Jimmy Moore) and decided to add some safe starch back in to my diet. Some days I just flat run out of energy. And it is all about what works for us as individuals. Thanks for the great explanation.

  42. Gerard Pinzone (@GerardPinzone)

    Even the Atkins diet talks about introducing carbohydrates back into the diet as long as they can be tolerated. Unfortunately, I think I’m one of those carb sensitive folks who need to stay in induction.

    Paleo folks are hard to nail down because they’re so splintered. I like the idea of paleo being a template rather than a diet. Otherwise you get all sorts of nuttiness like sugar is bad because it’s not ancestral, but bananas are okay even though bananas were first domesticated around 8,000-9,000 years ago. I don’t cringe at the idea of resistant starch because by definition it shouldn’t increase blood sugar. By the same token, I don’t cringe at resistant starch from corn, either. Unless there’s evidence that corn-based resistant starch has side effects nightshade-based resistant starch doesn’t, I’m more than happy to view them equally.

    1. Tom Naughton Post author

      My beef with the hi-maize RS people isn’t so much that it comes from corn, it’s that they’re promoting it as a method of adding a wee bit of RS to muffins and other junk to turn them into “health food.”

  43. kats612

    Tom, I am just loving these latest blogs! Thank you, thank you, thank you. I have purchased PHD and will read it on the cruise (that you’re not going to be on! Darn it! I was looking forward to meeting you and Chareva!)

    I don’t want to start anything new just prior to vacationing, but will give this some serious thought once we get home. This is exciting stuff and I probably would not have ventured into this “unknown” realm had you not blogged about it. I have many of the issues that others have experienced going very low carb, such as cold hands and feet, hypothyroid, low energy…where I used to have high energy when I first started. Also, my weight has slowly been creeping back up over the last 2 years. So, for me, this is very exciting! And not just so I can have potatoes again! lol

    Thanks again 🙂

    1. Tom Naughton Post author

      Sorry I won’t meet you on the cruise this year, but I hope PHD turns out to be what you need. Sounds like you fit the profile of the person who does better with a bit of starch in the diet.

  44. Melissa Cline

    Would love a recipe post from Chareva about some of the starches you’ve added. Think some of the winter squashes would do well roasted on the grill kebab style?

    1. Tom Naughton

      On the grill, I don’t know. She roasts various vegetables in the oven with a little olive oil and spice, and they’re delicious.

  45. Bret

    I admire Jimmy Moore for showcasing people whose beliefs are not 100% the same as his own–otherwise, we turn into a religious congregation, as Dave L aptly analogized above. On the specific topic of RS, Jimmy said he would like to conduct another n=1 experiment with such a focus. That blogger who thinks you two are in a rift over RS probably ought to get his/her head examined and learn to daydream less.

    I have noticed a fairly deep mid-morning tiredness recently, accompanied sometimes by difficulty concentrating, despite eating an extremely low-carb diet. My initial suspicion was that my daily 18-oz travel mug of coffee was wearing my adrenals down, but now I’m willing to bet that those symptoms were largely due to the gluconeogenesis I was forcing my body to undertake. I’ll explore the latter experiment first (I love my coffee!).

    1. Tom Naughton Post author

      A little safe starch perhaps, some resistant starch, then see what happens.

      The blogger who thinks we’re in a rift has a suspicious mind, to put it mildly.

  46. Firebird

    Tom, have you considered using white rice as a breakfast cereal substitute? Cook it, cool it…add in cream, 1/2 & 1/2 or almond milk, vanilla extract, sweeten it any way you like.

    I didn’t find Udi’s bread but I picked up a loaf of EN-R-G’s rice/tapioca bread. It’s pretty good toasted w/butter but cold it falls apart.

    1. Tom Naughton

      Chareva tried some other brand that also fell apart. The Udi’s holds together nicely.

    2. Walter

      To the white rice add rose water and cinnamon and even raisins. And there is no such thing as almond milk.

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