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New Study Finds Secret to a Faster Metabolism

Eating carbohydrates makes you store belly fat.  Eating protein puts on muscle. Most people know that. But a recent study1 in the Journal of the American Medical Association found that when you over eat on a low protein diet, you store bad fat around your organs including the liver, kidneys and pancreas.  But if you eat a high protein diet, you add muscle and increase your resting metabolism and muscle mass.  Since muscle burns seven times as many calories as fat, that’s a good thing.

In the study, researchers admitted 25 brave volunteers to a hospital ward for 12 weeks.  They controlled everything they ate and did.  But they made them all overeat about 1,000 calories a day. The only different was where the calories came from – protein or carbs.

The low protein group (5% protein) lost 1.5 pounds of muscle, and gained 7.5 pounds of fat.  The high protein group (25% protein) gained 6.3 pounds of metabolically active muscle. They also gained fat because they were being force fed. But even though they gained more total weight, they were LESS fat than the low protein group.

This has important implications for our thinking about calories.

Bottom line: Not all calories are the same.  Some calories make you store fat, while others make you store muscle.

In a world where for the first time in history more people are overweight (2.1 billion) than underweight this has important implications.  And the world is getting bigger – over the next 30 years, the prevalence of obesity will double and mostly in countries like China and India (because how do you get twice as many fat people in a country like America where 65% are already fat)!

Here’s the take home.  Quickly absorbed carbohydrates from the bulk of the American and increasingly the world’s diet – from sugar, high fructose corn syrup and white flour, are very efficiently turned into belly fat in the body.2  And that leads to obesity and diabetes, or what I call diabesity.

Another recent study found that the free fructose in high fructose corn syrup (not in fruit), led to dramatic increases in belly fat, inflammation, blood pressure, blood sugar and even pre-diabetes in adolescents.3

Carbohydrates and protein trigger produce very different chemical messages in the body independent of calories.  Carbs lay down the fat, while protein lays down muscle. 4

This study on protein adds to a whole slew of research that proves that higher protein diets (25%) does all sorts of obesity fighting things to your body and your brain.

  1. It makes you feel more full than an equivalent amount of calories from carbs.
  2. It leads to more weight loss in “free-living” humans as compared the ones who were force fed extra calories.
  3. It prevents gaining weight back after you have lost weight.5
  4. It speeds up metabolism and builds muscle so you burn more calories all day long and even while you sleep.

Reducing belly fat and building muscle is quite simple.  And it is not just about the calories you consume. It is about where those calories come from.

Here are a few simple tips to speed up your metabolism and get rid of belly fat.

  1. Skip the sugar  – in all of its forms. Especially liquid calories from any source (soda, juice, alcohol) all of which store belly fat. Be on a mission to get high fructose corn syrup out of your diet, it is especially good at laying down belly fat.
  2. Ditch the flour – wheat flour, especially, is just like sugar. Did you know that 2 slices of whole wheat bread raise your blood sugar more than 2 tablespoons of table sugar?
  3. Start the day with protein not starch or sugar.  Try whole omega-3 eggs, a protein shake, nut butters or even kippers! Skip the bagels, muffins and donuts.
  4. Have protein with every meal – try nuts like almonds, walnuts or pecans, seeds like pumpkin, chia or hemp or have beans, chicken or fish.

Somehow we are still duped by the idea that all calories are the same. They are not. Hopefully soon the practice of nutrition and medicine, and our government nutrition advice will catch up with the science. Then perhaps we can make a dent in the tsunami of obesity, diabetes and chronic disease coming right at us.

My personal hope is that together we can create a national conversation about a real, practical solution for the prevention, treatment, and reversal of our obesity, diabetes and chronic disease epidemic.

To learn more and to get a free sneak preview of The Blood Sugar Solution go to www.drhyman.com.

Please leave your thoughts by adding a comment below.

To your good health,

Mark Hyman, MD

1. Bray GA, Smith SR, de Jonge L, Xie H, Rood J, Martin CK, Most M, Brock C, Mancuso S, Redman LM. Effect of dietary protein content on weight gain, energy expenditure, and body composition during overeating: a randomized controlled trial. JAMA. 2012 Jan 4;307(1):47-55.

2. Stanhope KL, Schwarz JM, Keim NL, et al. Consuming fructose-sweetened, not glucose-sweetened, beverages increases visceral adiposity and lipids and decreases insulin sensitivity in overweight/obese humans. J Clin Invest. 2009;119(5):1322–1334.

3. Pollock NK, Bundy V, Kanto W, Davis CL, Bernard PJ, Zhu H, Gutin B, Dong Y. Greater fructose consumption is associated with cardiometabolic risk markers and visceral adiposity in adolescents. J Nutr. 2012 Feb;142(2):251-7.

4. Devkota S, Layman DK. Increased ratio of dietary carbohydrate to protein shifts the focus of metabolic signaling from skeletal muscle to adipose. Nutr Metab (Lond). 2011;8(1):13

5. Westerterp-Plantenga MS, Nieuwenhuizen A, Tomé D, Soenen S, Westerterp KR. Dietary protein, weight loss, and weight maintenance. Annu Rev Nutr. 2009;29:21–41.

,

49 Responses to New Study Finds Secret to a Faster Metabolism

    • Danny
    • February 8, 2012 at 7:27 pm
    • #

    Are breads that are gluten free still bad?

    • Mikki
    • February 8, 2012 at 8:59 pm
    • #

    I’m working with my husband to get rid of the ‘gut’ he carries. Through increasing his fiber intake and getting rid of a lot of sugars, we see some improvement.

    He does eat whole wheat sandwiches every day though. I didn’t realize this was doing him harm. Do you have any other bread suggestions that we could try that would help?

    Thanks so much.

    • Madhavi
    • February 8, 2012 at 10:52 pm
    • #

    My family is vegan and mostly raw. We are all healthy and now, after a great juicing program to ring in the New Year, cleansed and happy. We do eat a lot of nuts and seeds, make our own nutmilks and nutbutters, and doing great.

    I would remind people to read Dr. Mark’s 4 simple tips. No where does he say to bring on the 72 ounce steak! Ugh!

    Thanks again Dr. Mark for your great research and ideas. Looking forward to your new book on diabesity.

    • Magali
    • February 8, 2012 at 11:11 pm
    • #

    “My personal hope is that together we can create a national conversation about a real, practical solution for the prevention, treatment, and reversal of our obesity, diabetes and chronic disease epidemic.” ahhh music to my ears.

    Dr Hyman, I know and apply most of your dietary common sense. I am lucky, I like all the good stuff! Buuut…I also like good bread… What about sprouted cereal breads? Are they as bad as the bad breads?

    • Haleta
    • February 8, 2012 at 11:24 pm
    • #

    Loved the article. It is everything I already knew but I needed to be reminded again. One question. How do you feel about steel cut Oats for breakfast?

    • Nora
    • February 9, 2012 at 12:06 am
    • #

    Hi Dr. Hyman,

    In your opinion, the 25% of protein–would it be more beneficial to get it from animal protein or plant sources–is one preferred over the other? Even organic animal protein has saturated fat in comparison to a bowl of lentils.

    Can you suggest the better choice?

    • Richard
    • February 9, 2012 at 12:18 am
    • #

    Silmilar question … can you weigh in on best protein sources? beef, chicken, fish, beans, seeds, nuts, etc, and perhaps the most healthy in each class?

    • Jeanie
    • February 9, 2012 at 12:47 am
    • #

    I recently lost 40 pounds on a low carb plan.

    • Michelle
    • February 9, 2012 at 12:50 am
    • #

    First let me say, thanks for all you do. Really, your approach to overall health and wellness has been transformative for me to say the least. That being said, the titles or headlines of these blog entries are getting a little more gimmicky than I’d like to see from a professional of your cailber and with your integrity. After all, don’t you and your colleagues warn us of false and/or grandios claims. We are already a captive audience. We’ve drunk the coolaid. We are fans! I want to believe in you yet using words like “secret” is false. It’s not a secret, Dr. Hyman. What next, a “miracle” or “guaranteed cure-all.” You’ve taught us to be critical consumers and I for one am grateful and hopeful. You’ve helped make us too good for celebrity antics and propoganda. Stay true. Please don’t sell out. Best wishes.

    • omega-3
    • February 9, 2012 at 1:12 am
    • #

    Just wondering how you reached this conclusion from the JAMA article
    ” we are still duped by the idea that all calories are the same. They are not.”

    When the article concludes “calories alone account for the increase in fat; protein affected energy expenditure and storage of lean body mass, but not body fat storage.”

    In other words, eating too much of anything will lead to fat storage.

    Doesn’t his paper simply supports current guidelines to eat within your energy means, and consume 15-25% of macro nutrients as protein, as currently recommended?

    • Shelby
    • February 9, 2012 at 1:52 am
    • #

    Dr. Hyman,
    Any good protein shakes that you can recommend?
    Thanks, Shelby

    • R Stephen Crowley
    • February 9, 2012 at 2:10 am
    • #

    As a chater bus driver, I like to take my lunch with me but often don’t have time to get too elaborate so lunch consists of sandwiches. Is there something to use to make sandwiches that is not terrible for me? I usually use whole wheat bread.

    • Robert H
    • February 9, 2012 at 2:11 am
    • #

    Thank you for the newsletters, I am learning so much from them

    • debbie y
    • February 9, 2012 at 2:22 am
    • #

    I would like to stay on a high protein , low carb diet because it really does melt the pounds for me but I find that it also makes me really tired and cranky. What do you recommend?

    • Bimbam
    • February 9, 2012 at 4:31 am
    • #

    There should be a new term for obesity by refined carbohydrates. It should be called – CARB POISONING.

    • Donovan Giraud
    • February 9, 2012 at 4:05 am
    • #

    Hi Nora, I’ve been learning from Dr. Hyman and others from some time (do a search for integrativenutrition.com) and I’d say: ‘Both!’ Both animal and vegetable sources of protein are good. *Experiment* and see what works best for YOU. Keep a food journal for a few days: note what you eat and how it make you feel, both right after and 1-2 hours after. Always best to listen to your body – something that takes practice. These days I do oatmeal or a shake with protein powder in it in the am, I like hemp protein myself but there are others. I also eat meat: but only about once per day. More than that seems to be too much for me.

    • Danger Smith
    • February 9, 2012 at 6:24 am
    • #

    There is a move to make sugar and high fructose corn syrup “TOXIC”. Will it happen. NO!!! One forgets that big business basically controls our lives, what we eat, drink, who we vote for, how our leaders vote on issues. It’s all about money folks. Until we start thinking about our own health and take control of our lives, we are in trouble. Instead we think and act like Lemmings, and our health will continue to nose-dive. If you don’t know what Lemmings are, look them up…. That is our future!

    • tamarque
    • February 9, 2012 at 7:56 am
    • #

    Is there an age factor in the bodies ability to build muscle and what is it?

    • Mary Jo Boya
    • February 9, 2012 at 8:00 am
    • #

    What do you make of the acid-alkaline theory of eating? Protein is supposed to acidify your body?

    • Heather
    • February 9, 2012 at 8:11 am
    • #

    What about women who weight train? I do about 45 mins of weight training about 5 days plus 30 mins of cardio 5x a week and thought i need carbs right after to replenish. And i thought fast acting carbs. I am not a bodybuilder but am just trying to maintain my muscle as i am over 40. Would fruit be enough? Thanks

    • Jane Prior
    • February 9, 2012 at 8:39 am
    • #

    I too would like to know if age has something to do with the ability to make muscle. I have also always thought that carbohydrates were an addiction for me. If I start eating carbs’ enough is never enough, the craving is intense. When I have got into this state the only way out is to cut out all or as much carbohydrate as i can and overload on animal protein then I am Ok and can reduce to sensible portions of protein and vegetables etc. So long as I don’t have carbs’ I don’t crave them.

    I should appreciate knowing what research there is about weight loss and the elderly.The option of a lot of exercise is not always open for us.

    • June
    • February 9, 2012 at 8:51 am
    • #

    I am curious as to how the intake of dietary fat is related to fat storage. I am thinking about the vast differences in low carb and higher protein diets, specifically Atkins.

    • Jacks
    • February 9, 2012 at 9:56 am
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    I’m not sure I’m in agreement with this high protein diet unless you’re referring to plant proteins. A lot of my readings show that too much animal proteins in the diet actually cause the pH balance to change-then the body draws calcium from the bones to bring it back into balance. High animal proteins then have the potential to cause osteoporosis. By looking at our teeth we can see we have more grinding molars than canine -this to me suggests a high fruit and vegetable, whole grains nuts and seeds diet with a small amount of good quality meat would be the proper diet. You’d have to eat a lot of carrots to get fat!! LOL. On another note most people are confused over the term “whole grain”. Breads, pastas and cereals are no longer “whole grain”-they are dead and denatured food products-not actually food the body can use as they contain “no life”-A tomato is a living growing thing-a piece of bread is not.

    • AK
    • February 9, 2012 at 10:01 am
    • #

    The hard part is getting more calories from protein. On a given day, I may eat eggs for breakfast, a chicken salad for lunch, fish for dinner and snack on some nuts between meals. But even that doesn’t add up to a lot of protein. You also have to factor in that if you exercise regularly, your protein requirements will be even higher. I realize that a lot of people, particularly vegetarians, supplement with protein shakes. I refuse to do that. One, I consider that to be processed food. Just look at the ingredients in protein powder. You can’t pronounce most of it. Two, I want to avoid taking in liquid calories. So how does one go about increasing daily protein intake? Should I be eating more eggs for breakfast, putting more chicken on my salad, and having a bigger portion of salmon got dinner? In terms of portion sizes, I feel like I’m eating just enough to feel satisfied. Adding more chicken to my salad, for example, would make my salad taste more chickeny and leave me feeling like I ate too much. What advice do you have for people who need more protein, but already feel like they’re eating plenty?

    • Peg
    • February 9, 2012 at 10:29 am
    • #

    This is to AK.
    There are a couple terrific protein shakes out there with no extra ingredients. I have IBS and can’t tolerate lactose, fructose or other “ingredients you can’t pronounce”. I found an all organic protein powder at my local health food store with only a few ingredients. It was very expensive at $50 per small bag but well worth it.

    Being a person with an extreme case of IBS I have tried many diets and different eating plans. If you stick to fruits and veggies, raw almonds and only good portions of meat (we eat only turkey breast and filet mignon) you will not only have enough protein but also feel more energetic and lose weight. Try it for a month, it works!

    • SR
    • February 9, 2012 at 12:05 pm
    • #

    Eating a higher amount of protein seems to contradict Dr. Colin Campbell in “The China Study”. Dr. Campbell indicates that higher levels of protein promote the growth of cancer. Could you comment on this?

    • McLean, Casey J
    • February 9, 2012 at 1:01 pm
    • #

    what about the simple carbs, like the fructose found in ripe fruit? i’ve been leaning toward a frugivorian diet the last few years, and already avoid the ‘complex’ carbs found in grains (for the most part), but balancing between seeds, nuts, veggies, and the majority of my calories coming from fruit and their sugars – is that bad?

    • Zaria
    • February 9, 2012 at 1:31 pm
    • #

    I agree with Jacks. Protein can be very acidifying in our body, especially animal protein. I also don’t think our bodies are designed to handle that much protein. Especially people that eat high carb diet now may have a hard time digesting all these proteins if they make a switch. I prefer plant sources of proteins like nuts, seeds, avocados and beans, but even that can be hard to digest in large quantities.
    Dr. Hyman doesn’t mention good fats in his blog. I prefer to eat an avocado with a salad and some steamed vegetables for dinner. Sometimes I’ll have some eggs or fish with a salad, but avocado is a staple in my diet.
    I’m also not convinced about eating a heavy breakfast such as eggs. I like to start my day light as I don’t even feel hungry in the morning. For over 20 years now I’ve only eaten fresh fruits for breakfast and add a hand full of raw nuts by late morning. I always feel great and full of energy.
    I also believe that proper food combining is very important for easy and efficient digestion. If you combine too many food groups into one meal, it’s hard for our body to digest and can cause bloating, gas and indigestion. Light, simple meals prepared from whole foods, are easy to digest and don’t make you tired afterwards.

    • Carma Schultz
    • February 9, 2012 at 1:57 pm
    • #

    I am interested in what you think about the blood type diet. I am type A, which is vegetarian without cow dairy. Also certain beans are nix. This leads me to eating whole grains, veggies, eggs and fish. I have also heard animal protein gives cancer a good place to develop in the body, which the Gerson Method adresses. As someone else asked, what kinds of proteins are good on a regular basis, and is the answer to this possibly more customized rather than the same for everyone?

    • VL T
    • February 9, 2012 at 2:51 pm
    • #

    I don’t know why we allow companies to use high fructose corn syrup. It has the effect of crack cocaine. It should be banned. Period. We should ask that it be banned.

    • Gail
    • February 9, 2012 at 2:56 pm
    • #

    As a a renal cell carcinoma survivor now living with one kidney, I was told to eat low protein so as not to tax the remaining kidney. In addition I am wheat sensitive so I am mostly gluten free now. What should I be doing under theses circumstances. I work out 3 times a week with 20 minutes of cardio followed by weight training for 40 minutes and then stretching. I am having trouble losing the fat around the middle and am post-menopausal. Hard to know what is best for me with all this.

    • Jane
    • February 9, 2012 at 3:00 pm
    • #

    Help! What does a no flour diet look like?

    • quiltartist
    • February 9, 2012 at 3:02 pm
    • #

    Per AK’s posting saying she feels like she’s eating enough protein, for her and wonders how to add more protein:

    I notice Dr. Hyman left red meats out of his suggested proteins. My diet is high in protein and quite low in carbs as I eat no sugar other than the sugars in berries, pears and apples, and haven’t for 25 years. Also eat no gluten grains, only occasional other whole grains. So, protein and veggies, nuts, seeds, some beans, a little fruit, olive oil, sesame oil, grass fed butter. I do eat red meats frequently, including organ meats, grass fed. Eggs, free range. Chicken and fish. I don’t make chicken a centerpiece of my protein intake because it’s so hard to find chicken that isn’t fed a lot of soy and corn, and that imbalances the omega 3 to 6 (and other omega fatty acids), balance in them. I have one local source and take advantage of that whenever I can and eat the best free range chicken I can find at Whole Foods.
    There is so much advice around to avoid red meats, yet my 95 year old mother ate them liberally all her life, and she didn’t have access to grass fed beef, and she has no arthritis, not osteoporosis, no cancer, no heart disease (believe me, she’s tested frequently because the docs can’t believe it), and she ate generous amounts of butter and cream always. What she didn’t eat, since she discovered how to improve her health when she was 50, was processed food, sugar (including alcohol, honey, maple syrup), and gluten grains. The only med she took until she developed post polio pain at age 92, was bioidentical thyroid. Now she takes some pain meds.
    Our heritage is very largely British with some Northern European. I often wonder about the influence of heredity on what (given a whole foods diet), works for different people, since people were adapted in place and different populations had very different diets until very recently in human history.
    I’m 69 and take no meds. My sister eats the same way I do and at 65, also takes no meds. I think maybe the best advice Dr Hyman gives is eat a whole foods diet, low in simple carbohydrates. But when I think of how I need to eat as opposed to, for instance, how the thin, trim, fit Japanese have eaten historically (brown rice as their staple: veggies and small amounts of proteins around that), I have to think we’re different. When I tried Macrobiotics (essentially an Asian diet), I gained weight, lost energy, bloated and felt miserable. I had to go back to my own ancestral diet. AK, maybe you’re eating enough protein…for you.

  1. An interesting study. I’m thinking along the lines with Jack above and wondering what combination of plant vs animal protein was consumed and what the long term effects would be. I keep reading that consuming too much animal protein increases the risk of cancer.

    • Michele Scheck, DO
    • February 9, 2012 at 4:05 pm
    • #

    Thank you for spreading the word. I’ve been practicing medicine for over ten years and I am only now learning how to adequately treat my patients. Your books and news letters are enlightening. Keep them coming.

    • Ken Holland
    • February 9, 2012 at 3:07 pm
    • #

    For the most part, the only reason this does not solve our problem IMMEDIATELY is that protein is more expensive than carbohydrates. Perhaps now that our banks are fat, they can bail-out the American people and give out subsidies to lower the cost of all forms of protein! We can only dream…..
    In the meantime, thank you for leading the charge to get everyone off packaged foods and high fructose corn syrup – that alone is a saving grace.

    • Jacquelyn
    • February 9, 2012 at 4:59 pm
    • #

    Dr. Hyman,
    Thank you for all of the great info. Do you have a recipe for a high protein
    bread substitute? Hubby loves sandwiches and I like toast. It would be very difficult to give up completely.
    Thank you

    • chuck
    • February 9, 2012 at 8:59 pm
    • #

    you are getting so close dr. hyman. now if you could just get over your fear of animal fat. everyone needs to spend some time learning the truth about saturated fat.
    http://www.kriskris.com/10-reasons-to-eat-saturated-fat/

    • Veronica
    • February 10, 2012 at 2:24 pm
    • #

    Two years ago, I gave up alcohol, wheat, white potatoes and corn (most of the time—love Mexican food!). I was 185 lbs. and within a year, doing nothing else (no exercise, no cutting out sugar), I lost 10 lbs. Since January, I have been on a 1200-cal per day diet, and lost another 12 lbs. I continue to love and crave sugar in the form of dark chocolate, low-cal ice bars, and fruit yogurt. However, I try to snack on nuts and that really helps. My cholesterol is still in the normal range and I am otherwise healthy. I think lowering carbs really, really works.

  2. Dr. Hayman, I very thankful and grateful to you for your news letters. You are the only one who has taught me how to live a healthy life style. Prior to you and your news letters, I have visited many natural medicine + western medicine doctors never mentioning nutritionists just to find out that at the of the therapies there was no improvements. At one point, I was even called a hypochondriac – I was devastated. Today, I am glad that I did not give up. I am very close to whom I want to be. I sill need to work on myself that’s for sure. It did not take me too long to mess myself up without even realizing the consequences of it but it takes me a long time to correct it. That’s why even more so. I am and will in the future appreciate what I have received from you and your news letters.

    • T
    • February 11, 2012 at 1:17 pm
    • #

    I’m surprised no one has mentioned the cholesterol factor. Ive had high cholesterol since age 23, mostly due to genetics. I’ve been able to decrease my LDL (bad cholesterol) by cutting out animal protein. For protein I eat soy products like tofu, tempeh, edemame, etc. as well as egg whites, nuts, and beans. I’ve also found protein fortified whole grain oats and cereals. I will eat the occasional piece of chicken or pork, about once per month, as I do believe balance is key. Fish more frequently, at least once/week, because of high omega 3s and lower cholesterol. Just wanted to add the cholesterol issue into the conversation.

    • Marilyn
    • February 13, 2012 at 2:22 am
    • #

    Instead of wheat bread for sandwiches, try using nori seaweed for a sandwich wrap. Many supermarkets will have them in the foreign food section. It is typically used to make sushi.

    • Erica
    • February 14, 2012 at 12:11 am
    • #

    Some questions arise for me:
    1. How much fat were they eating? I find the more fat I eat, with moderate protein and low carbs, the more I lose. Even if I ‘overeat.’

    2. Muscle weighs more than body fat, so I’m not surprised the high protein group also gained.

    • Reg B.
    • February 14, 2012 at 12:09 pm
    • #

    I find that a lot of people will eat even if they are not hungry. We need to train our children at a young age that food is a part of surviving to live a full and happy life,not to live for food to get obese. If we take a small amount of food to satisfy ourselves and do it 4 or 5 times a day,we will see a big reduction in calories that we take in and anyone that is overweight will see a drastic loss of body fat…
    I have studied this for many years and I consider myself an expert on the subject. I have a blog that goes into much more depth…

    • jgarma
    • February 16, 2012 at 3:26 am
    • #

    I find it very difficult to ingest enough protein unless I supplement.

    This is making a difference. Although I’m a health nut and even blog about health, I was unaware that I was not eating enough protein even though I exercise strenuously.

    Dr. Hyman, among others, such as Tim Ferris opened my eyes to this possibility, and self experimentation over the last two months underscores my assertion that I was not getting enough protein.

    Part of the issue for me is that I don’t like meat and don’t want to over do it with fish. So, I’ve learned to supplement with protein throughout the day.

    Whey, hemp, pea and spirulina/rice based proteins are what I use. Although expensive, it’s essential that you choose high quality brands. ProHealth, for instance, has a high quality whey protein that I use a lot: http://wp.me/pA04z-3S

    • Stefan Freifeld
    • February 16, 2012 at 3:38 pm
    • #

    “But if you eat a high protein diet, you add muscle and increase your resting metabolism and muscle mass. Since muscle burns seven times as many calories as fat, that’s a good thing.”

    I don’t totally agree. Increasing your metabolism ages you quicker. The human organism grows, repairs & rejuvinates itself by replicating cells. Cells have a finite capacity to replicate. This is part of the reason why people lose height as they age. Accelerating metabolism accelerates cell replication which causes one to age faster.
    Have you ever heard of an NFL lineman or Olympic weight lifter living a long life? Look at LeRoy Selmon and Arnold Schwartzeneger they’re examples of extraordinary, big athletes who have suffered severe health problems and they’re certainly not the only ones. Accelerating metabolism also increases free radical levels which places a greater load on the immune system and therefore places the individual at greater risk of disease. High-protein intake raises IGF-1 levels which promotes cancer growth. Most people who consume high levels of protein are consuming high levels of animal-based protein, not plant-based protein. The animal-based protein raises the acidity in their bloodstream which causes calcium to be leached from their bones to neutralize the pH level and maintain homeostasis. Also, animal-based food products tend to contain high levels of saturated fat which is strongly associated with cardiovascular disease.

    This article fails to discuss the differences between plant-based and animal-based proteins. Just as all carbohydrates aren’t the same nor are all proteins. This point is obvious when one looks at the chemistry involved.

    The goal shouldn’t be to be big and strong nor should it be to be thin and frail. The goal should be to be lean and healthy.

    :”Bottom line: Not all calories are the same. Some calories make you store fat, while others make you store muscle.”

    I agree. Our bodies do not function like calorimeters. Digestion and nutrient absorption occur through many complex chemical reactions & physical processes. Calories in does not equate to calories absorbed.

    “Carbs lay down the fat, while protein lays down muscle.”

    This is a gross oversimplification. We need carbohydrates just as we need protein. We don’t need processed carbohydrates just as we don’t need much, if any, animal-based protein.

    “Have protein with every meal – try nuts like almonds, walnuts or pecans, seeds like pumpkin, chia or hemp or have beans, chicken or fish.”

    You should have protein with every meal. Chicken and fish should be limited. People who are overweight should also limit nuts and seeds since they are energy (calorie) dense. Deep leafy greens, vegetables, & fruit are excellent sources of protein and they also provide other micronutrients which are important for proper nutrition.

    A diet that focuses on a high level of animal-based protein fails to provide adequate levels of micronutrients and therefore causes one to be undernourished. Over time, the appetite cannot be suppressed indefinitely. Eventually, food consumption increases and the individual becomes simultaneously overfed (too many calories consumed) and malnourished (not enough micronutrients consumed).

    Somehow we are still duped by the idea that all calories are the same. They are not. Hopefully soon the practice of nutrition and medicine, and our government nutrition advice will catch up with the science. Then perhaps we can make a dent in the tsunami of obesity, diabetes and chronic disease coming right at us.

    “My personal hope is that together we can create a national conversation about a real, practical solution for the prevention, treatment, and reversal of our obesity, diabetes and chronic disease epidemic.”

    I couldn’t agree more.

    • Ben P.
    • February 16, 2012 at 4:36 pm
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    First off, let me say that I agree wholeheartedly Michelle’s comments: Dr. Hyman, please avoid the gimmicky stuff. It’s a huge turn-off, and makes me very suspicious, especially in light of the fact that he has a new book coming.

    While I do find this reasonably compelling, it’s not at all terribly surprising. What I’d like to see, though, is Dr. Hyman respond to the numerous questions posed here, as well as to acknowledge how this thinking about diet has evolved (specifically his belief now that wheat is bad). Based on my reading, Dr. Hyman is now just this side of espousing a Paleo diet.

    For me, it’s simply too challenging to be absolutist about food, because it leads to an unhealthy obsession with correct eating (aka “orthorexia”). Therefore, I’m more inclined to adopt Michael Pollan’s maxims: eat food, not too much, and mostly plants. Great wisdom….the only thing I’d add is “MOVE”!

    • Avatar of Dr Mark Hyman

      Thanks Ben- moving is key!

      In good health!
      Lizzy

    • Carlos
    • February 24, 2012 at 3:59 pm
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    “…high protein diets … it speeds up metabolism and builds muscle …” This is one of the greatest and oldest myths about muscle building there is. To build muscle you must stress your muscles doing resistance exercises. No matter how much protein you eat everyday if you don’t stress your muscles you are not going to see muscle building in your body.
    Aditionally we have to consider the repercussions of eating large amounts of protein daily on renal function …

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