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How Much Carbohydrate Do You Need to Eat Per Day?

 

 

We’ve all grown up equating sugar to energy, but new research suggests our bodies are engineered to run on fat…

I recently attended a fascinating series of meetings in Baltimore, MD accompanied by the top physiology and weight loss specialists in the country. Although I’d long known sugar was dangerous and advised limiting all carbs to 50-100gm per day, going into the meeting I’d assumed we needed some. Specifically, I thought our brain cells required glucose because that’s what I learned from biochemistry books, physiology books, and other medical texts.

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megyn kelly

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I would like to thank you for literally saving my life. Back in February, I had to be hospitalized while on vacation in Phoenix with an A1C of 11% and had to start taking 2 types of insulin and 2 other meds. I read the Fatburn Fix in April, and followed the program to a tee, and I’m down by 15 pounds, 6.8 A1C, and only one once weekly diabetes medicine. Prior to reading the book, it was almost impossible for me to lose weight as a diabetic. 

Leontyne Tompkins

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For the last month, I have really been reading all labels on everything. I have completely remove those 8 oils you talk about. I must tell you, I feel great! I have more energy and I am now 197 lbs (have always been around 205 to 210lbs). I eat potatoes with real butter, grass fed steak, pasta with the right toppings. I eat everything! I seem to crave less sugar. I love it! 

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Your Fatburn Fix book is amazing, my friend. Thank you! I’m an Functional Nutritional Therapy Practitioner and I know my stuff. This is the extra layer of knowledge I didn’t know I needed. Well done!

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Lost a solid 20 lbs and my bloodwork is great

I have lost a solid 20 lbs and my bloodwork (after 3 months of eating your way) was even better! I was metabolically healthy (per your book) before I read your book, but barely. Lowering my weight, sealed the deal! I have been talking about you and your book to anyone who will listen...Thank you for all you’ve done and what you continue to do! You are changing lives for the better!

Missy Cramer
FatBurn Fix reader

Lost 20 lbs I could never shed

I love your Fatburn Fix!  Has helped me so so much!  I have had the dreaded weight all my life - 20 or so pounds I could never shed.  I have lost that now. I only eat 2 meals a day lunch and dinner with a glass of milk or cappuccino around 4 to hold me over. No snacking and not bad oils.  It has been the key to unlocking my fatburn.  I work out in the am and believe I am burning fat for energy not from food!

Lauren Smith

I feel great

My waist is four inches smaller. I feel great and many of the minor aches and pains that I had (knees and lower back) are gone. Also, my muscle tone is amazing, even though I have not increased my workout routine.

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Completed Dr Cate's online course
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Whenever I advise my clients about eating to perform I go straight to what I have learned from Dr. Cate. Her book Deep Nutrition has become the go-to for strength and conditioning coaches across the country.

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Ken D Berry

Dismantles the lie

Dr. Cate dismantles the lie that seed oils are healthy, which may the biggest lie about nutrition and health because it’s so insidious.  

Ken D Berry, MD
Author of Lies My Doctor Told Me
Dr. Drew Pinsky

She knows the chemistry

Dr. Cate alerts us to the harms of seed oils and she’s convincing because she knows the chemistry better than anyone.

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No one is better at communicating nutritional truth

Dr. Cate has had the single greatest impact on how we talk to people about fueling for both performance or durability. While we all are a little unique, the foundational principles of human nutrition are immutable. If you are looking to create a more durable, resilient body, no one is better at communicating nutritional truth than Dr. Cate.

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Brian Lenkzes

Highly recommend The Fatburn Fix

Dr. Shanahan has had a significant impact on my practice of medicine. I am known as a Low Carb Doctor, but I never really appreciated the negative effects of processed seed oils on the health of my patients. I highly recommend The Fatburn Fix to my patients and have a loaner copy in my waiting room. It is amazing how quickly blood sugars and overall health improves with cutting seed oils. It is not just about the carbs!

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CEO of LowCarbMD San Diego, co-host of Low Carb MD Podcast and host of Life's Best Medicine Podcast
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Dr. Cate reordered my diet when I was with the L.A. Lakers, and the benefits, for me personally, were felt immediately and have served me to this day. I’ve come to take real food so seriously I started a small family farm. I know of no M.D./nutritionist more respected in the sports world than Dr. Cate Shanahan.

Chris Kaman
NBA Player
Mark Sisson

Brought seed oil issue front and center

Cate brought the seed oil issue front and center. Healthy fats matter. So much so that I created an entire product line to swap out bad fats with good.

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Dave Aspery

Pull up a chair…

I have based my work on the idea that getting the right kinds of healthy fats into your body and avoiding the worst fats is essential to optimal health. I've interviewed dozens of the world's top experts about this, and I know of no one who speaks more eloquently on this topic than Dr Cate. If she’s talking fats, pull up a chair. Take notes.

Dave Asprey
Author of the Bulletproof Diet

The key to unlocking my fatburn

I love your Fatburn Fix!  Has helped me so so much!  I have had the dreaded weight all my life - 20 or so pounds I could never shed.  I have lost that now. I only eat 2 meals a day lunch and dinner with a glass of milk or cappuccino around 4 to hold me over. No snacking and not bad oils.  It has been the key to unlocking my fatburn.  

Lauren Smith

Saved my life

I would like to thank you for literally saving my life. Back in February, I had to be hospitalized while on vacation in Phoenix with an A1C of 11% and had to start taking 2 types of insulin and 2 other meds. I read the Fatburn Fix in April, and followed the program to a tee, and I’m down by 15 pounds, 6.8 A1C, and only one once weekly diabetes medicine. 

Leontyne Tompkins

> Tears of joy

 I'm crying tears of joy and appreciation for all you've done for me and my health! Without Deep Nutrition and Fatburn Fix, I would literally still be in the vicious cycle I'd been fighting all my life! In a nutshell - I am no longer a compulsive overeating addict suffering under the crushing 'thumb' of all food and alcohol.     

Penni Wicks

 
Your body requires ZERO grams of dietary carb. What little glucose your body requires (30gm) you can generate yourself from an ounce of protein


During the meeting, however, I became convinced by the abundance of newer lab and clinical data showing that brain cells, and the vast majority of other cells in the body, actually prefer a product of fat metabolism, called ketone bodies. The power plants of the cell that burn oxygen to produce energy in the form of ATP, called mitochondria, function poorly in the presence of another chemical, called malonyl-coA, which comes from the breakdown of glucose. Forcing mitochondria to deal with malonyl-coA overwhelmes their ability to control the high-energy electrons used in the making of ATP, and the result is a release of free radicals. Free radicals can cause DNA mutations as well as enzymatic destruction.

A minority of cell types actually do require glucose, specifically a few types of cells in the liver and cells without mitochondria (e.g., red blood cells). All other cells work perfectly well burning fat and special kinds of fat-breakdown molecules called ketone bodies. According to world-renowned metabolism expert Dr. Mary Vernon, we need 30 gm (2 Tbsp) of glucose per day to keep those cells that prefer glucose running properly. That small amount can readily be supplied by the conversion of protein to glucose in a metabolic process carried out through a cooperation between the liver and kidney, called gluconeogenesis.

What about Adrenal “Burn-Out”?

Somebody got the idea circulating that low-carb diets might cause adrenal “burn out,” and a few readers have asked about this. I’ve looked everywhere and I can’t find any data supporting the theory. I do find a physiologically plausible mechanism by which carb consumption may cause adrenal gland problems. Take a look at the diagram I’ve adapted here (below) from a lecture presented by Dr. Jeff Volek. It illustrates the mechanism by which high carb diets produce energy swings.

High blood sugar causes excessive insulin release which leads to low blood sugar and a ‘panic’ reaction from the adrenal gland

It’s important to consider that, if you have a metabolism that’s been running on glucose for decades, your metabolism is not in a healthy state and therefore will need some time to realign itself with the input of proper nutrition. You’ll need to give your body some time to adapt to the new fat-burning state. A whole new set of enzymes will need to be re-manufactured, which can take a few weeks to accomplish. For those with metabolisms in serious trouble, I typically advise going low-carb one meal at a time giving each mealime two weeks.

Bottom line: All the latest science contradicts the assertion that we need carbs—any carbs—in our diets. This isn’t to suggest that everyone needs to remove carbohydrates entirely from their diets. Indeed, there may be some as-yet undiscovered benefit to dietary sugar. Today’s article is not meant to suggest that we’d all be better off with zero carbs in our diet. It is, however, meant to point out that very few of our cells need dietary sugars for energy, and therefore the old idea that we need to include carbs in our diets or we’ll feel tired all the time, is running on empty.

ADDENDUM: Thanks to Paul Jaminet, Matt Stone, Cheeseslave and others, there has been a much-needed awareness-raising of the fact that we can overdo every good thing. Since originally posting, I’ve added the following caveat:

I believe that just as we enjoy a change of pace from time to time, so does our metabolism. There may be benefits from consuming enough carb to kick you out of ketosis (50-120 gm per day) on occasion. I suspect our ancestors enjoyed seasonal fruit binges from time to time, for example, and a rare (emphasise RARE) infusion of simple carbohydrate may flood your body with a variety of different sugar molecules in ways that aid fertility, and support tissues that require sugar molecules for structural purposes (like tear and mucuous production by the eyes and digestive system).  Just remember, whatever as-yet unexplained benefit carb-flooding may offer, it may also temporarily stall weight loss .

Dr. Cate

With over two decades of clinical experience and expertise in genetic and biochemical research, Dr. Cate can help you to reverse metabolic disease and reshape your body.

This Post Has 97 Comments

  1. Briefly, I’m 58, T1D, ok A1c (in the 6s), doing low-ish carb for years, recently went VLC Paleo no fruit or grains, everything fresh, insulin under 30u per day. Always had very high cholesterol (~450) and I thought VLC might see a slight improvement. I was completely shocked to find that my cholesterol went up, not down. Thyroid fine. Under what circumstances would cholesterol go up when Paleo and low-carb says it goes down?

    1. TChol is a meaningless number, like knowing weight without height. Your HDL, LDL, and Trig are all important numbers. For instance, if your HDL went up from eating more good fats then your TChol would simply reflect that.

  2. Hi Dr. Cate,

    I just posted a similar comment on Cheeseslave’s blog, and was disappointed in the less-than-nuanced discussion concerning carbs. I would be so grateful to hear your thoughts on the following, not only because I am desperately seeking ways to address my own hormonal health right now…

    I was a lacto-ovo vegetarian (super strict, whole-foods “starchitarian,” with two years of veganism as a teenager) for my entire life, until my oldest son turned six and I turned thirty, and our entire family’s health had pretty much gone down the tubes–it took that long for me to question my “religion.” My hormones in particular were toast, and had been getting worse since adolescence: My basal body temps were two degrees too low, I had horrible cramps and PMS and irregular cycles and “mood swings” (to put it mildly), and my son was sliding into autism and anorexia in a scary way.

    We finally did a 180.

    We have been doing a very low-sugar (probably low-carb, no nuts but with LOTS of veggies), high-animal-fat GAPS diet for two years, and my son has improved steadily, while at first I made great progress: Monthly bleeding shortened from five days to 2-3, was much lighter and less “clumpy,” my cycle shortened from 35-45 to 28-30 days, and my basal body temps became both more even and 1 degree higher overall (even though they were still about 1 degree lower than normal). My anxiety and depression were WAY better. My hypoglycemia, for the first time in my life, disappeared.

    Then…I got pregnant in October 2011, and I am still searching for reasons why I crashed about three weeks later–my mood issues have returned with a vengeance, and they can’t NOT be hormonally-linked, although PTSD also must be part of it (my son’s issues are still pretty intense). I have been severely debilitated by exhaustion, depression, anxiety, and ever increasing panic attacks.

    I have examined Jaminet’s ideas and others, and am not convinced that my hormones crashed due to my diet’s relative absence of carbs. Could it be that, because of a lifetime of high-starch, low-animal-fat eating, my liver just doesn’t work as well as it should?? Could this be why so many women’s hormonal issues are uncovered when they go “low carb”, simply because suddenly the body has lost its compensatory mechanisms for fueling and building itself, not to mention producing hormones? I have no idea, really, but I am fascinated by the discussions concerning glucoengenosis, and I have this feeling that it’s not nearly as simple as I wish it were. Eating more carbs, and even some grains, during this pregnancy has NOT fixed my hormonal “problems” by any means, just like it wasn’t the key to good health during the first 30 years of my life (there are so many variables!). I’m not convinced it’s the missing link to why many people have hormone problems that “start” when they begin eating paleo–were those hormones REALLY just fine before the carbs were taken out? Maybe high-carb is a therapeutic way (of many) to compensate for/deal with a metabolism that has spent a lifetime (and maybe many generations??) eating a high-starch diet…

    These are just some of the thoughts I have, as I ponder how best to heal a family suffering from fairly far-gone degeneration. I’m fascinated by what Jack Kruse writes about hormones, and am doing a modified (no carb restriction) “leptin reset” even while I am getting a lot of blood work done to determine whether I need to take cortisol and/or thyroid in order to continue this pregnancy safely (and with fewer food revulsions and panic attacks!).

    http://jackkruse.com/my-leptin-prescription/
    http://jackkruse.com/the-leptin-rx-faqs/
    http://jackkruse.com/why-is-oprah-still-obese-leptin-part-3/

    What do you think of these ideas?

    It’s interesting to me because it seems like healthy/already-healed bodies can tolerate (and sometimes thrive) on such a huge variety of diets, and certain healthy people end up advocating these diets for everyone, or at least for most people, or else confusing healthy diets with healing diets. It’s those of us who have been “broken” to some degree that have to do all this searching and trial and error (as one super healthy friend of mine put it, “I actually can’t tell if a certain food is bad for me or not by simple observation, because my body does well in the short term regardless!” We humans are also prone to confusing causation and correlation, not to mention blurring our observations even further with our wishful thinking).

    And it seems like a diet that would most help a person with a certain type of broken-ness might not even be perfect for them later on, as time goes by and they begin healing and their body has different needs.

    I think about this constantly, especially because my family has so many different types of health issues, and we’re all at different “stages” of healing. I’m 20 weeks pregnant and grew up on the aforementioned vegetarian regimen; I never appeared to have any digestive troubles, despite my hormones getting totally wacked! My eight-year-old is extremely fragile still, and cannot handle many carbs at all, for better or for worse, and seems to need tons of fat in addition to lots and lots of meat and protein. My husband has had autoimmune issues since he was three months old, and definitely can’t digest most carbs well at all… My second child is definitely not as robust as he might be, had I known during his pregnancy how deficient I was in animal fats and cholesterol. Sometimes I think that we may NEVER achieve the level of health of which I dream.

    But I’m very interested in continuing to try. Can you recommend any resources for researching hormones in particular? I mentioned Dr. Kruse before because I’m fascinated by his short-term protocols to normalize hormone levels, and because I’m also fascinated by the idea of allowing bodies to improve their digestion and maximize potential. I would love to be convinced that carbs are my key to hormonal health…but I’m not so sure they are. I don’t know. I ate so many properly-prepared, home-fermented whole grains for so many years…and still my son and I have suffered so much, and we didn’t begin to climb out of the abyss until we stopped eating these foods.

    But now my body seems to need more than “just” a super-nutrient-dense, ancestral-style diet. I am struggling so much, and would love some ideas, and I am beginning to think that I will need to take cortisol/thyroid in order to get my bloodwork and moods to a safer level to continue this pregnancy.

    I’m grateful for any thoughts,
    Sarabeth

    1. Sarabeth
      You are working towards regaining hormone sensitivity and wondering if you ought to take hormones to speed up the process. It so happens that Jimmy Moore is working towards the same goal for the purpose of fertility in his family and I will be discussing this precise topic, regaining hormone sensitivity versus supplementation, with Jimmy More Thurs Feb 23 on his Ask the Low-Carb Expert podcast series here: http://www.askthelowcarbexperts.com/2012/02/7-the-long-term-effects-of-the-high-carb-sad-diet-dr-cate-shanahan/
      I believe that conversation will help you quite a bit!

  3. Thank you. We eat free range beef, chicken, eggs, raw milk and fish….definitely not vegan. 🙂 I just wanted to make sure this lower carb lifestyle was safe for the long term. Thank you again for the clarification. Even though Cheeseslave recommends natural sweeteners for all her baked goods, I understood from your books that we don’t need sweets at all (except for the occasional fruit and dark chocolate, of course). One more question: what would a portion size be for the 20 % carbs that you suggest? I tell everyone I know about your books. Thanks again!

  4. Ann
    What’s good for you is good for kids, too! Nature wouldn’t have it any other way.

    If you are a vegan, vegetarian, or simply choose to get more than about 20% of your daily total calories from carbs (something I advise against), you do want to think about going through all the processes available to you (see http://www.cheeseslave.com/free-whole-grains-webinar-replay-plus-over-100-questions-answered/) to maximize their benefits. However if your family is low carb and getting plenty of nuts and seeds in your diet, you will be accessing more nutrients than those who are eating high quantities of soaked and sprouted grains.

  5. After all the recent posts at cheeseslave.com about how we need properly prepared grains to avoid mineral deficiencies, energy loss, thyroid/adrenal stress, etc., I am confused. Properly soaking/sprouting/dehydrating/milling and then baking is a lot of work and I’d prefer to avoid it. However, I want to do what’s best for my three growing girls and myself (they’re ages 12, 9, 7). We eat carrots and squash and some fruit for carbs. We may have some sprouted Ezekiel bread once or twice a month and some soaked oats once or twice a month. I feel your program is healthiest for me (PCOS and some IBS) but want to make sure it’s “safe” for the entire family. Thank you again for helping all of us out here who want to feel well and be well!

  6. Hi Dr Cate
    I am wondering if dietary requirements for carbohydrates would be different for children? Or pregnant or nursing mothers?
    Thanks so much for your work. I love your books.

    1. Aminya
      Children would presumably need fewer carbs, but I can’t say that there is any research to support this. Here’s what I wrote to a woman named Tina about carb intake while breastfeeding. Again we have no research, but it’s an educated guess and I explain my rationale: https://drcate.com/your-2012-weight-loss-resolution-become-a-better-fat-burner/comment-page-1/#comment-6636
      Perhaps, as the recognition that low carb, traditional diets are good for everyone, we will get more specific insights to guide us.

  7. An interesting post, and it calls to mind a post from MDA: http://www.marksdailyapple.com/the-primal-carbohydrate-continuum/

    Some related anecdotal info. My father-in-law has always had a sweet tooth, but until recently has enjoyed very good health, a big strapping man (and not even first-born!). After a couple of bouts with cancer, with better than expected results, he was diagnosed with brain cancer this fall following nausea and dizziness that everything believed to be a viral infection. One tumor, orange-sized, was surgically removed, leaving two that could not be operated on. The doctors offered a grim 3-6 month survival window, but decided to try a combination of radiation and chemo.

    I did some research on the Internet and found that brain tumors feed exclusively on glucose, and that there has been some preliminary research indicating a ketogenic diet can help shrink such tumors. (Ketogenic diets are also successfully used with children suffering from extreme forms of epilepsy, e.g. hundreds of seizures per hour, unresponsive to medication.) Normally I don’t do “diet evangelization,” you run headlong into conventional wisdom resistance or people’s own dietary desires (“but I like my sweets too much!”), and it’s usually a losing battle. But I talked to my father-in-law and told him about what I’d found, bought him a low-carb cookbook, and offered lots of advice on what to eat.

    Barely a month and a half after that 3-6 month prognosis, and albeit with radiation and chemo, and yes an n=1, but one tumor was reduced by 40% and the other by 50%. He’s still going through the chemo, but the doctors were amazed by the test results, and I don’t think they’re limiting him to a month and a half to 4 months to live now. Don’t know how much diet affected the outcome, but it didn’t hurt, that’s for sure.

  8. It would be great if you might consider dedicating a post to the issue of “portion control” on a high(er) fat, low(er) carb diet. I switched to a “Paleo/Perfect Health” diet (I do not like to label my diet) 14 months ago coming from a healthy version of the standard Western diet. I had never had weight problems before and steadily gained 6 pounds on higher fat, lower carb. I re-considered my diet and found that I just overdid the fat (initially, I still bought the “insulin-leading-to fat-storage-hypothesis” which I, along with most low-carbers, do not buy anymore) and ate just too many calories. I lost the weight but I still struggle with portion design. It is easy to eye-measure bread and pasta and lean meat but it is difficult with the added fat, as small additions make a big difference. Also, with fattier cuts of meats it is nearly impossible to guess how much fat is in there especially after cooking…I do not know if I am the only one who struggles with this; maybe it is because the low-carb-blog-sphere is a “mens`world” and men usually need more calories, whatever it might be but maybe you like to adress the topic portion/weight control (especially for women)?

  9. Iris
    In the past 6 months since the comment from Ward I have had the opportunity to meet the Jaminets in person and agree wholeheartedly with your assessment; they are very helpful and tuned-in to the latest in the blog-o-sphere. Also Sou-Ching makes a very tasty Kimchee. If you are truly interested in understanding where we differ, then please consider coming to the AHS symposium’s Safe Starches panel, where Paul Jaminet, Dr Rosedale, Dr Kruse and I will have the opportunity to see if we can’t come to an agreement.

  10. My comment wasn´t meant to be rude – still looking forwars to your books! However, the Jaminets`are some of the most helpful and well-informed people in the blog-sphere so I really felt like defending their position – you should fefinitely check their website!

  11. What about children? Do growing children need carbs, and if so, how much? My 15 year old is a new onset T1D, and his endocrinologist wants him on 360g+ carbs per day, and an A1C of 7 to 7.5 because he is growing. FYI, we have had no real problems with lows, but struggle to keep his BG in the 70-180 range; he goes over 300 BG at least every other day, with wild swings up and down. When I suggested lowering his carbs, his doctor strongly opposed it. I’m confused and just want to do what’s right for him and his younger siblings, but can’t find much literature that speaks to juveniles.

  12. Neil
    Thank you for the nod towards Dr Wahls!

    And those Irish genes are mine. Luke’s Scottish (Yellman) he liked the Irish name though and decided to go with that.

    It would be fantastic if we could simply test for allergies to things like milk and not only that but to know which component of the milk we’re reacting to so that you could avoid it. For example, caseins from goat and cow are slightly different, so some can do one but not the other.

    Until then, we’re left with elimination diets, trial and error, and supportive facebook threads!

  13. Hi Cate – yes I do think that molecular mimicry in celiac is probably pertinent (and also probably where the MS researchers got their inspiration!) . I absolutely agree with you that the reason Saturated fat makes a difference in MS is not clear. However the Swank longitudinal research is pretty persuasive. This is well covered in Dr George Jelinek’s books (website:taking control of MS) and would probably persuade me to be careful with regard to sat fats. There is some evidence that the cell membrane fat profile is different in people with MS (genetic?), that it is more brittle and thus more prone to attack from the auto immune response…. Interestingly Statins are now being used as a treatment! I think gluten is pretty much a no brainer for general health and so Im left with milk! The issue here is the casein I believe. Interestingly the Paleo dieters also avoid milk on the basis the we were unlikely to be milking wild animals! They have shown auto immune responses to casein in the laboratory… Oh and by the way Dr Terry Wahls who has managed to get out of a wheelchair using dietary methods is a big fan of your work and keeps recommending your book on her facebook page! (She is dairy, grain but not Sat fat free). I believe diet is a huge area of interest for a chronic disease that affects so many and am thus grateful for your wonderful work! By the way speaking of genetics; with a name like Shanahan your hubby must have some Irish genes! Neil

  14. Neil
    Very interesting. The molecular mimicry concept makes sense, in fact I have a video I’ve been working on for about 3 years (a cartoon) that animates molecular mimicry as it affects the nervous system.

    As for the idea of brittle membranes, at first blush the issue of saturated fat in the diet ending up in high concentration in cell membranes seems unlikely simply because the concentration of individual fatty acids in membranes is not likely to be tied to the whims of dietary choices, but rather genetically regulated. Of course, there could be genetic-based illnesses, but those would show up early in life I would think. Furthermore, our enzymes can desaturate saturated fat into monounsaturated fats.

    I am putting your suggestions on my do do list because I will look at it as I do further research to support that video I’ve got on my back burner, and put it up as a post about molecular mimicry and inflammation within the immune system. I have just completed another video (cartoon) about molecular mimicry and celiac, which I think you may find pertinent in some ways to your situation.

  15. Hi Cate – to be honest they are pretty clued in to the difference between animal and man made fats etc. Ashton Embry has probably collated the best collection of scientific papers related to the theory that saturated fats and casein (dairy proteins) are problematic in MS. The genesis for the theory with regard to sat fats is generally based on the idea that the cell wall is brittle if you have too much sat fat and not enough omega 3 for pliability. In any case Dr Roy Swank ( a neurologist) conducted a 50 year longitudinal study of MS patients and found that those that had a very very low sat fat diet did best. With regard to the casein protein the suggestion here is that molecular mimicry is the issue ( also applied to gluten by the way). There are articles on gluten causing leaky gut which contributes to the undigested proteins getting into the blood stream and over time setting up the auto immune response. Ashton has a number of these published articles under the science section of his website. http://www.direct-ms.org/. I would really appreciate it if you had a look! Intuitively I love the notion of going back to traditional diets – even at 47 I remember my mother and grandmother making Irish stews etc with the bone still in the meat and so on. We are lucky in Ireland in that all our beef is grass fed so Im off to the butcher to get some knuckles! Neil

  16. Hi Dr Cate
    Firstly just wanted to say I loved your book and have been really impressed and excited by your research. This is especially important in my case as I have a chronic inflammatory disease – multiple sclerosis. I believe that your research has given me new insights into how I can vastly improve my health and long term prognosis. HOWEVER there are a couple of problems for me to resolve. Quite a bit of dietary research in MS from some very respected resources (Dr Roy Swank, Dr Terry Wahls, Dr George Jelinek for example) suggest that both gluten AND dairy may be problematic in MS along with a high saturated fat diet. Therefore I am having difficulty reconciling the dairy and saturated fat aspects of your approach with the current MS diets that I currently respect. Can you shed any further light on this as it would be most appreciated! Thanks Neil

    1. Neil:
      I am passably familiar with their work and suspect they are making the same mistake most low-fat proponents make: citing research not on the effects of naturally occurring fats, but on saturated fat manufactured artificially by the hydrogenation of veg. oils. I have yet to hear anyone explain a specific mechanism that is also physiologically plausible for how gluten and dairy both happen to cause the same neurologic symptoms, yet I am open to hearing one if you have a good source for me. I am going to post a piece about food allergies any day now and would like to hear what you think.
      Best of Luck in your Recovery.

  17. Murray
    Thanks to requests like yours I am currently working on a detailed post about food allergies along the lines of celiac, which should be done by this weekend or shortly after.

    Lactose intolerance is not, strictly speaking, an allergy. It’s a result of an enzyme that functions in babies and if we stop drinking milk as we get older, the gene regulating the enzyme shuts down production. Like other genes, this one can potentially be turned back on again. I suppose I should also do a piece with more detail. Please do subscribe to email updates to stay tuned!

  18. Hi, Cate –
    I loved your books and am implementing your program as much as possible while living in rural Kentucky where some of your suggested food items are not available. Fortunately, I have located a local source for raw milk and fresh farm eggs. There is some local produce available in season, but most of the farmers around here grow Tobacco, corn and soy beans!
    I have ordered a copy of “Deep Nutrition” for my daughter who lives and works on a ranch on Maui.
    Now, my question: Have you responded anywhere on the issue of food alergies and lactose intolelance? This was asked above by Mary Levy on June 26, and was also the focus of a review on Amazon. I am new to this blog, so if you have already addressed this issue please direct me to your reply.
    Thanks for providing us with such valuable information, I am immensly impressed by the depth of your research!
    Murray Crow

  19. I have IBS and experience a lot of bloating which makes me look pregnant. I also have been having week muscles, and having a sickness feeling. My weight fluctuates and I have a very poor diet. Can you recommend where I can get a diet plan that would help me? I have 2 children so I don’t have much time to be organising and planing meals, something easy? I would like to cut out carbs from my diet as potatoes and bread seem to bloat me more, and my sugar intake is very high, I like x3 sugar in tea/coffee and eat a lot of junk food.

  20. I wonder if it’s just that some people do better with some amount of carbohydrate in their diet. I grew up in Hawaii and can’t imagine all my Japanese and Chinese friends going without rice or noodles. They (when living on their traditional diet) do not get fat at all, even from the massive amounts of carbs they consume, mainly from rice/noodles. I have tried and tried to follow a low carb diet but once I hit around 60 grams, I start shaking. I can’t turn the page the page of a book because I am shaking too much! I feel OK, just hungry; I can’t seem to get full and worse, I can’t sleep without waking up in the middle of the night with muscle twitches and acid reflux from hunger. Maybe some of us need even just a little bit of grains. Just wondering. Thanks!

  21. If you’re going to eat grains, they’re better for you sprouted. Why? Fewer empty calories (carbs) and more nutrients, thanks to the germination process in which plant enzymes convert stored starch to all sorts of stuff, the stuff a plant needs to grow: amino acids, fiber, vitamins, and more. Depending on how long the sprouting process continued (2 days, 5 days) you’ll get more conversion. Generally somewhere around 10-30% of the carbs are converted to better stuff.

  22. In reading your Deep Nutrition I see you advocate sprouted grains. I also read on this blog that your mind has changed on the carb need for our bodies. Are you still in favor of grains? Thank you Karen

  23. I think maybe my comment on August 5 has slipped through the cracks, since it still says “awaiting moderation”.

    By the way, I just made my first beef bone broth after watching your video with Sean. It came out great! I did notice that the written directions say to add the veggies to the pot later on, but the video shows the veggies going in the pot right at the beginning. Which is the best method, nutrient-wise?

    Thanks!

    Rebecca

    1. Rebecca
      Your comment actually is going to get answered in a blog post as soon as possible, since I can see this being a popular issue. Thanks for your patience.
      Both methods of making broth offer different benefits. Veggies going in earlier will, thanks to their lower pH, assist in dissolving minerals out of the bone. Going in later will preserve the vitamins and antioxidants.

  24. Hi Maria
    I’m glad you are considering making diet changes. If you’ve been stuck with the medical system unfortunately the nutrition advice is really almost exactly the opposite of what works, which is why I wrote my books and developed T.R.I.M. The information in Chapters 8 and 9 of Deep Nutrition will help explain why there may be food-related inflammation disrupting your liver, and what foods cause it. (Of course you must con’t to work with your PCP until he’s exhausted other potentially more serious causes.) And the rules in Food Rules will get you started in the right direction diet wize. After you’ve read chapters 8,9 and food rules you can read the rest of Deep Nutrition to get a more in-depth understanding of the role of food in your body’s functioning.
    You are just starting in the right direction, congratulate yourself and DO NOT give up until you’ve reached your goals.

  25. Dear Dr.

    I found your books on amazon.com today and ordered both of them. I just turned 45 and have struggled with my weight for most of my life. I am barely five feet tall and weight 170 pounds. My biggest health problems are: moderate persistent asthma (diagnosed right before I turned 30), endometriosis stage four (diagnosed at age 41, married for almost a year, and struggling to concieve! I’ve had two endometriosis surgeries so far.), acne, slightly high blood pressure, and my primary physician is concerned because blood tests show my liver enzymes are high (but nobody can tell me why they are high or what I can do to improve this condition. I had a liver, gall bladder, ect. scan and my liver was shown to be perfectly normal. But still I have high liver enzymes!). Also my Mom has Diabetes 2.

    I am very concerned because I have the worst time being able to breath. Also growing up, I never learned how to eat right. I am very confused over all the mixed messages out there. Also we have a family history of colon cancer (I had my first colonectomy at age 44 and they found three polyps including a large one! How can I prevent these things? And from growing into cancer?). Growing up I always ate sugar cereal or pop tarts for breakfast. I also eat a lot of fast food. I’m also addicted to sugar especially pepsi. I’ve drank it all my life.

    I am very interested in your T.R.I.M. program and was thrilled to learn you are in NH. I live in New Bedford, MA. Do you think an anti-inflammatory diet could help me? Could it really improve the asthma? the endometriosis? the infertility? acne? sebborheic dermatitis? At times when I’m walking home from work and struggling to breath, it makes me feel so frustrated and want to cry. If you could give me some basic info and some encouragement (maybe point me in the right direction), It would be very helpful. I’d really appreciate it so much! Thank you for your time and consideration! I just feel so helpless and lost with this awful asthma and my general health condition. I’m only forty five years old and feel like I’m 90 sometimes! I realize now that I’m mostly to blame for my poor health due to my bad food choices all my life.

    Hope to hear from you!

    I can’t wait to receive your books from amazon.com and learn more!

    Does your books talk more about this anti-flammatory diet? I want to learn more! Can it really help me with all my conditions?

    Thanks!

    Maria N.

  26. Thanks, Caty! What I meant by “thyroid function going down” is that I had a full thyroid panel done, including TSH, Free T3, Free4 and Reverse T3, and my results show that my thyroid function is worse than it was before, with Reverse T3 going up considerably.

    Are you saying that it is your opinion that long-term low carbing does not cause thyroid problems?

    I eat all whole foods, no added sugar of any kind, no processed foods, no grains and no legumes. I basically eat meat, fish, fowl, eggs, healthy fats and low-carb veggies. No starches of any kind (potatoes, etc.) and no fruit.

    You mentioned mayonnaise. I do use a moderate amount of may0, but I make my own out of coconut oil, MCT oil, olive oil, eggs, mustard, sea salt and lemon juice. Would this also be a problem, based on my ingredients, or is the only problem with the Atkins thing is that it is commercial mayo made of bad oil and other ingredients?

    By the way, I just made my first beef bone broth after watching your video with Sean. It came out great! I did notice that the written directions say to add the veggies to the pot later on, but the video shows the veggies going in the pot right at the beginning. Which is the best method, nutrient-wise?

    You talk about inflammation. I gain weight by looking at food, and whatever combo of macros and calories I have tried never works more than a few weeks, and then I gain back any weight that that I have lost very quickly. Would reading the book (which I have not yet, but plan to) help me figure out what the heck is wrong with me, or do I have to get on a plane and meet with you personally? Is there a way to get help on a limited budget (no funds available for air fare)?

    Thanks!

    Rebecca

  27. I have a question about eating low carb and its affect on thyroid function. In the past few days, I have been reading a lot of things on the internet about decreasing thyroid function when eating very low carb for an extended length of time.

    Since starting low carb over two years ago, and being 95% paleo for over a year now, my thyroid function has gone down, and now I have high Reverse T3. I have had to start taking bio-identical thyroid replacement for this.

    One of the things I read is that Dr. Atkins found that thyroid function decreased if carbs were kept too low for too long, and that is why he developed the \Carb Ladder\ to try to encourage people from staying too low carb.

    Over the past two years, I have eaten between 40 and 20 grams of total carbs (not net), and I still have 36% body fat and now low thyroid, too.

    Just so you know, I don’t have an axe to grind – I would rather stay pretty low carb, but now I am wondering if it may have damaged my thyroid function, and I wonder if I should be increasing my carbs, which is not that easy to do when you refuse to eat grains and legumes!

    Thanks!

    1. Hi Rebecca
      I’m not sure what you mean by “thyroid function has gone down?” If you rT3 went up and no other changes, that may represent an increase in thyroid function. If TSH (the hormone that prods the thyroid to produce more thyroxine) dropped that means you thyroid activity has actually increased. Dr. Atkins may have made his observations on thyroid hormones because may of his recipes include things like mayonaise that are loaded with what I call Megatrans fats (discussed in chapter 8), which can damage all glands and organs of the body.

      It may be useful to you to to understand that my rationale for lowering carbs is based on the fact that sugar is sticky and potentially damages all your glands and organs, with the result being all kinds of mixed up hormone functions. If you have not already done so, I recommend you re-read chapter 9 in Deep Nutrition to get a fuller picture.

  28. Marcus

    Marcus: THANK YOU FOR THIS VERY IMPORTANT QUESTION! Whenever you make major diet changes, you may experience side effects.

    Most of the changes in your body are welcome: More energy, effortless weight loss, fewer headaches, better digestion, better sleep, increased libido, better glucose and cholesterol numbers, mental clarity, resistance to colds, resolution of allergies, and the list goes on!

    Since we’re cutting out the cereal, whole grains, beans, and other fiber sources, make sure to replace the bulking agents with a steady stream of fiber rich fresh veggies or you’ll probably notice some constipation.

    I’ve noticed most people don’t drink enough water, and this diet can put undue strain on the kidneys if you’re dehydrated. Drinking at least 12-16 ounces with every meal keeps your kidneys happy, and, in fact most people with high blood pressure and renal damage see big improvements in kidney function.

    That water with meals is also important to aid solublization of all that nutrient in the GI system.

    And women … be ready for some hormonal changes including slightly more painful periods and even some heavier bleed because you will be more sensitive to the hormones your body is making. This should be temporary.

    The transition can be rough for people with diabetes treated with medications, because blood sugars will drop — sometimes dangerously low — unless they’re working closely with a doctor to reduce dosages. This is why, during TRIM, we monitor this closely.

    We’re working on a book, The TRIM Solution, that provides an entire program for adapting a healthier diet including what to expect in terms of benefits and what to do to prevent unwanted side effects.

  29. Hi Dr. Cate I’m currently reading Deep Nutrition & I truly appreciate the work you & Luke have done to put this type of info on traditional nutrition out there. What type of effect will switching from sugar burning to fat burning have on ones body & mind during the transition of from eating a diet full of carbs & sugar to one with plenty of good fats & protein. Thanx in advance
    -Marcus

  30. Dr. Cate, I think I have a girl crush on you. 😉 Seriously, it’s so refreshing to have data to back up nutrition information. I have greatly reduced my carb intake, and am attempting to drag the family along (kicking and screaming). It’s not easy, but I believe it does heal.

  31. Hi Dr. Cate,

    My husband was recently put on low dose medication for HBP. Even though it’s becoming more common to see that, we am not happy with him being on it at only 46. We are attempting to help lower it through reflexology and low carb eating. I know that high carbs make the arteries “gunky” and stiff. Will a low carb lifestyle change actually reverse the damage or just hold it at where it is?

    1. Good question, Carol, because not all low-carb programs are the same. A diet that can reverse hypertension, not just hold it steady, will need to consider multiple dietary factors that generate inflammation, as well as sleep and exercise. Check out the Ten Steps to a Healthier Body link (http://www.trimprogram.com/p/10-steps-to-healthier-body.html) for an outline and some more information on what to expect from following a truly healthy, anti-inflammatory diet.

  32. Hi Howard
    Thanks for sharing your success on zero carb. I notice a lot of folks lately seem to be down on aerobic exercise, as you are. I am not sure where that’s coming from but if, as you indicate, there is the assertion out there that aerobic exercise requires glucose or affects the cortisol levels in a bad way that is not correct–at least not when we’re talking about moderate amounts of aerobic exercise. I will blog in more detail on exercise and food and how your body responds to both in a future post. Stay tuned.

  33. Textbooks reflect the long held, but incorrect assumption that since carbohydrates are burned before fat, they must be the preferable fuel. But plenty of zero-carbers, including myself, can attest to the fact that their brains and bodies function far better on fat. Carbohydrates are the jet fuel used for that quick burst of fight-or-flight, and that comes from stored glycogen in the liver. And, as with any necessary glucose as you stated, that is replenished via gluconeogenesis.

    What is important to realize, however, is that that same glucose, if continuously replenished and reused as in aerobic exercise can result in the same problems caused by ingested glucose, not to mention the exacerbation from the associated high cortisol levels.

  34. Hi Cate,
    Does low carbing raise TSH? Low carbing has improved every aspect of my health. However I noticed one thing. Lowering my carbs appears to have raised my TSH values. Is this worth worrying about?

    May 2010
    A1c: 5.7
    TSH: 3.0
    Eating about 120g carb/day

    Apr 2011
    TSH: 5.0 (Free T3: 3.3, Free T4: 1.52)
    Eating about 20g carb/day

    July 2011
    A1c: 5.3
    TSH: 4.77
    Eating about 50g carb/day

    Thanks.

    1. HI Pasca

      Interesting data, very organized, you are!
      Typically, I see people’s TSH drop a little bit when they follow my TRIMProgram (see TRIMProgram.com for details).
      Are you also aware of “secret” trans fat? If not, that could possibly be affecting your health. As far as should you worry about those numbers, I’d have to defer to your doctor …. Lab results must always be interpreted in the context of in-depth knowledge of your history and even physical exam findings.

  35. Dr. Cate-
    I was wondering about your recommendation to consume cow’s milk dairy in the face of indisputable evidence, such as in the landmark China Study, of the connection between casein in dairy (the protein, so nothing do with fat levels, or pasteurization) and disease.

    Hundreds of studies have showed that consuming dairy in children and infants leads to allergies and other issues. In countries where dairy is not consumed, such as in China, there is no osteoporosis, since dairy is among the most acid-forming of all foods and leaches alkaline minerals, such as calcium, out of the body.

    I have stopped consuming dairy, and have never felt better. My bone densities have improved as well.

    Ann Levy

    1. I am curious about that as well. There is a lot of info out there demonizing dairy and after my son developed allergies to milk we have stopped its consumption as well. At that point my husband noticed some of his chronic symptoms cleared.

      1. Some people develop a celiac-like syndrom to casein and should avoid anything containing casein.

        Others can tolerante raw milk, or milk from other animals ie goats.

    2. For Ann and Curious

      I do not make blanket recommendations against any natural food unless it causes you problems.

      As far as I am concerned, all evidence is disputable. And many people have disputed the China Study, most recently and entertainingly in my opinion is Denise Minger: http://rawfoodsos.com/2010/07/07/the-china-study-fact-or-fallac/

      I have addressed the acid-balance theory in response to others over on my dairy posts, which you can start reading here: https://drcate.com/is-dairy-paleo-revising-history-with-new-persectives-on-flocks-of-goats-femur-bones-and-feckless-nutritionism/

  36. Hi Ward
    I’m not familiar with those authors, however I would think that they ought to have offered support for their own claim in their book. Since they apparently did not, I think you have your answer! 🙂

    Regarding the 50 g, our bodies do need about 2 Tbsp of glucose per day (about 30 g) to run cells lacking mitochondria. That amount is easily supplied by the process of gluconeogenesis which converts amino acids into glucose. This is the process by which all carnivores manufacture the needed glucose for red blood cells and a few other cell types that lack mitochondria and therefore can’t burn fatty acids or ketones.

    I hope that helps!

  37. I would like to see some discussion on the Jaminet’s (authors of the Perfect Health Diet) claim that very low carb diets may lead to “glucose deficiency” that results in “insufficient production of mucus in the digestive tract” and the resulting digestive difficulties (p. 254 PHD).

    They claim that good health requires at least 50 g of “safe starches: taro, yam, potato…) on top of any carbs that may be present in vegetables. These same “safe starches” are the ones most likely to produce the energy swings you discuss in your post. Part of their argument is that glucose is needed not just as an energy source but also as a molecular building block.

    Do you know of any science that would support their claim?

  38. Thanks for another great post. With regards to the adrenal fatigue/low carb diet connection, Dr. Diana Schwarzbein (endocrinologist/author) strongly supports this theory and, apparently, has seen this condition occur in many of her patients. Her books document this in more detail. However, I too have been unable to find any studies which shed much light on this concept either way.

  39. Hey Cate 🙂 it’s me again…

    There must be a relation between the high levels of glucose (or insulin) and the enzyme…

    I have a gut feeling thou (didn’t research on this yet). The malonyl-CoA being involved in the synthesis of fatty acids must be more related to a deficiency of the fat in the diet. And a low fat diet is most likely a high carb one. Maybe that’s the relation… but I’m not sure. My above theory is just a speculation at this point.

    I’m gonna study this for a while and if I can’t come to a conclusion I will email in shame my Biochemistry professor 🙂

    1. Dr. Mary Vernon, a bariatric specialist, is the one who opened my eyes to the mitochondrial effects of the metabolic differences between high and low carb diets. You can do a youtube search under her name, you’ll probably find her lectures very interesting. She’s kinda fun to listen to–very spunky.

  40. HI MIke,
    Nice to hear from my favorite Villager!

    Yes, Malonyl-CoA doesn’t know whether it came from carb or fat breakdown. The issue is a little more complicated than I made it but since you are inviting me to transform into superGeek mode here’s a few missing details that I found VERY interesting. This comes from my favorite biochem book but probably any biochem book will have the same kind of info [Textbook of Biochemistry, by Devlin 5th ed. p 715]

    “[u]nder conditions of carbohydrate abundance (high insulin levels), tissue levels of Malonyl ClA, the product of the aceytyl-CoA, the product of acetyl-CoA carboxylase reaction, are elevated, causing suppression of mitochondrial CPT1 activity.”

    CPT1 activity suppression over the long haul causes an effective deficiency of carnitine and…

    “The very low carnitine level in heart and skeletal muscle seriously compromises long-chain [over 16C] fatty acid oxidation.”

    and by seriously compromises they mean the process goes all pear shaped to include inability to control the highly volatile electron transport chain that leads to the production of ATP.

    So in my estimation, a chronically high carb diet gives you a temporary and very mild version of CPT1 deficiency. True (genetic) CPT1 deficiency leads to muscle cramping, weakness, and eventually death.

  41. Hey Dr. Cate, I’m very intrigued by the information that the Malonyl-CoA comes from the breakdown of glucose. That’s not exactly true.

    Malonyl-CoA comes from the Acetyl-CoA and bicarbonate in the presence of the acetyl-CoA carboxylase. My point is that Malonyl-CoA has as much with glucose as it has with the beta-hydroxi butiric acid…

  42. When I tried low carb for about 2 months, my morning cortisol levels went above the normal range (I’m also hypothyroid and had cortisol in the upper range prior to low carb). What would I have to do to prevent this rise next time? Thanks

    1. Jon: I recommend you check out the Nutrition and Metabolism website (see logo on my right sidebar) for your local low-carb literate MD

      HIgh cortisol likely resulted because your body is not accustomed to burning fat and it takes a larger jolt of adrenaline to kick start your AM metabolism. They could advise you about what to do next time.

  43. HI Charlie

    You are right; carbs ONLY serve to replenish glycogen and they are not at all necessary to gain muscle mass. Glucose cannot be used to build muscle. Protein can be used to build muscle or replenish glycogen. I’ll do a more detailed post on the protein versus carb debate for muscle form and function in the future.

  44. Finally, an issue that I am passionate about. I have looked for information of this caliber for the last several hours. Your site is greatly appreciated.

  45. I can personally attest to this: since drastically reducing my carb intake during the past six months, I’ve lost 24% body fat (while working out too, of course). My personal trainer asked me the other day after reviewing my progress log if I had been taking any fat loss pills. I asked her, “Why? Your body can do it naturally if you cut the carbs.”

    A related question I had on this topic is on muscle building. A coworker of mine who is trying to gain muscle mass mentioned that he was trying to increase his daily carb intake to help build muscles, which seemed odd to me. The only connection I could make between sugar and muscles is that perhaps one could maybe do some more exercising during a sugar spike. Or maybe the extra glucose would refill glycogen stores to do more exercising. But in any case, do you know to what extent carbs, whether directly or indirectly, are necessary when trying to gain muscle mass?

    I’ve gained about 10 pounds of muscle mass while cutting carbs, but I’ve seen others who love to drink sugary protein shakes gain muscles just the same. Is one method more advantageous than the other?

    1. Hi well it always depands what kind of carbs u eat. Im on all fruit and green leafy veggies ,3 organic eggs a day 80grams nuts or seeds per day and i maintained a sicks pack at a body weight of 195 pounds.Alos my wife and 34 month daugther eat the same way.its the fat in the diet at the same time as carbs that is the problem.Check out this book
      “Neal Barnard’s program for reversing diabetes” on amazon i bought it and saved my life.

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