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Mark Hyman, MD

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How Hidden Food Sensitivities Make You Fat

Posted: 03/ 3/2012 10:14 am

Think "food allergy" and you might conjure the worst-case scenario, like a child going into anaphylactic shock after exposure to peanuts. No doubt, a severe food allergy is scary. But it's also relatively rare. A much more common scenario is an adult with a low-grade food allergy to say, gluten, who never pinpoints the cause of his misery. His symptoms are vague (bloating, constipation, weight gain) and his exposure is frequent (breakfast, lunch and dinner), so the connection is murky. And, over years, the hidden allergy takes a toll on the immune system. The result of an overworked immune system is everything from weight gain to irritable bowel syndrome (IBS) to arthritis.

That's what happened to a patient of mine. John weighed 350 pounds and was facing diabetes. But his blood sugar problem was only the tip of the iceberg. He also had joint pain, asthma, crippling fatigue and a sleep disorder. To combat his lethargy, he craved diet soda and fast food for its high number of starchy carbs, a false source of fast energy. What he didn't know was that he had celiac disease, a serious autoimmune disease fed by his daily indulgence in bagels and donuts. Celiac disease causes the immune system to turn on itself, attacking the healthy lining of the digestive tract. And the major trigger is gluten, a sticky protein found in many grains, including John's daily dose of bagels and donuts. Unchecked autoimmune diseases mean the gut is in a constant state of inflammation, a breeding ground for chronic illness.

Food Sensitivities and Inflammation

John's story is not unique. Inflammation is one of the biggest drivers of weight gain and disease in America. While celiac afflicts roughly 1 percent of Americans, as many as 30 percent may have non-celiac gluten intolerance.[1] The key difference is that in people with celiac disease, the body attacks the small intestine. But in people with non-celiac gluten intolerance, the immune system attacks the gluten. A recent article in The New England Journal of Medicine listed 55 "diseases" that can be traced back to eating gluten.[2] Either way, the gut festers out of sight. And when the lining of the gut is inflamed, the body is even more prone to food reactions, so the problem spirals out of control.

When the lining of the gut is inflamed, small fissures open between the tightly-woven cells making up the gut walls. Called leaky gut syndrome, these chinks in the gut's armor allow bacteria and partially-digested food molecules to slip out into the bloodstream, where they are considered foreign invaders. Once it spies a potential enemy, the body doesn't hold back. The immune system attacks full throttle. White blood cells rush to surround the offending particle and systemic inflammation ensues. I'm not talking about a sore throat or infected finger. I'm talking about a hidden, smoldering fire created by the immune system as it tries to fend off a daily onslaught of food allergies.

The problem is that most people, like John, eat foods they are allergic to several times a day. Meaning every time that food enters the body, the immune system whips itself into a frenzy. But because symptoms are delayed up to 72 hours after eating, a low-grade food allergy can be hard to spot. Without diagnosis or awareness, the damage is repeated over and over, meal after meal. Eventually, inflammation seeps throughout the body, establishing an environment ripe for weight gain and chronic disease.

Identifying and treating food allergies and food sensitivities is an important part of my practice. Six weeks after John went gluten-free on The Blood Sugar Solution, not only did he lose three notches on his belt, but his knees didn't hurt, his asthma was gone, he wasn't hungry and his energy was back. John's response was not unusual. I have seen dramatic effects in weight loss, inflammatory conditions like autoimmune disease and even mood and behavioral disorders.

The problem is that most physicians, especially allergists, don't see the value in uncovering hidden food allergies. That is unfortunate because there is a growing body of medical literature illuminating the intimate relationship between the gut, food and illness. Luckily, you don't have to wait for your doctor to catch up with the times. Here are three ways to determine if food allergies are undermining your health.

Three Ways to Identify Food Allergies

  1. Get a blood test. Blood testing for IgG food allergens (Immuno Labs and other labs) can help you to identify hidden food allergies. While these tests do have limitations and need to be interpreted in the context of the rest of your health, they can be useful guides to what's bothering YOU in particular. When considering blood tests for allergens, it's always a good idea to work with a doctor or nutritionist trained in dealing with food allergies.
  2. Go dairy- and gluten-free for six weeks. Dairy and gluten are the most common triggers of food allergies. For patients who have trouble losing weight, I often recommend a short elimination as part of the The Blood Sugar Solution. Both dairy (milk, cheese, butter and yogurt) and gluten (most often found in wheat, barley, rye, oats, spelt, triticale and kamut) are linked to insulin resistance and, therefore, weight gain. Temporarily cutting them out of the diet allows the inflamed gut to heal. This one move may be the single most important thing most you can do to lose weight.
  3. Avoid the top food allergens. If you don't feel a sense of relief from nixing dairy and gluten, you may need to take the elimination diet one step further by cutting out the top food allergens: gluten, dairy, corn, eggs, soy, nuts, nightshades (tomatoes, bell peppers, potatoes and eggplant), citrus and yeast (baker's, brewer's yeast and fermented products like vinegar). Try this for a full six weeks. That is enough time to feel better and notice a change. When you reintroduce a top food allergen, eat it at least two to three times a day for three days to see if you notice a reaction. If you do, note the food and eliminate it for 90 days.

If you are overweight or if you suffer from inflammatory diseases, such as heart disease, diabetes and cancer, the potential health benefits of discovering and uprooting hidden food allergies cannot be overstated. Remember, food is your greatest ally in helping to prevent and treat illness. For more information see The Blood Sugar Solution to get a free sneak peak.

Now I'd like to hear from you...

Do you have food allergies?

Are you gluten intolerant?

Have you eliminated your food sensitivities and lost weight?

Please leave your thoughts by adding a comment below.

To your good health,

Mark Hyman, MD

References:

[1] Ludvigsson, JF, et al. 2009. "Small-intestinal histopathology and mortality risk in celiac disease," Journal of the American Medical Association. 302 (11): 1171-8

[2] Farrell, RJ, and CP Kelly. 2002. "Celiac sprue," New England Journal of Medicine. 346 (3): 180-88 Review

Mark Hyman, M.D. is a practicing physician, founder of The UltraWellness Center, a four-time New York Times bestselling author, and an international leader in the field of Functional Medicine. You can follow him on Twitter, connect with him on LinkedIn, watch his videos on YouTube, become a fan on Facebook, and subscribe to his newsletter.

For more by Mark Hyman, M.D., click here.

For more on diet and nutrition, click here.

For more on weight loss, click here.

 
 
 

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Think "food allergy" and you might conjure the worst-case scenario, like a child going into anaphylactic shock after exposure to peanuts. No doubt, a severe food allergy is scary. But it's also relati...
Think "food allergy" and you might conjure the worst-case scenario, like a child going into anaphylactic shock after exposure to peanuts. No doubt, a severe food allergy is scary. But it's also relati...
 
 
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04:34 PM on 04/10/2012
I am suffering from many food intolerances - too many to mention almost - including all grains (even gluten-free grains), dairy, tomatoes, fruit, sugar, soy, corn, nuts, chicken, chocolate, CAFFIENE (of any form) - this has been going on for one year - it started 3 months after I gave birth to my second child. I have had no relief from eliminating all of these things and in fact still suffer even with the things I "can" eat. Major digestive distress. I have been trying to get to the bottom of why this is happening - did endoscopy and 24 hr ph test a few years ago that showed nothing, have been going to an integrative medicine dr (whom I don't see anymore), an acupuncturist and have recently started NAET therapy. Nothing seems to work. I'm thin and don't want to get any thinner. HELP!
01:55 AM on 04/10/2012
I am a very vibrant 58 yr. old woman and I was told that I was severely gluten intolerant, but not celiac, 11 years ago. I stopped, knowingly, eating gluten and immediately ended the debilitating sinus headaches and my Fibromyalgia was all but gone. I felt wonderful for the first time in 25 years! However, after contracting the worst "flu" virus in my life, I was diagnosed with Polymyalgia 7 years ago. I have been on 1-1/2 mg. of Prednisone every day since. It doesn't sound like much but I now have Osteoporosis and want to get off of this awful drug! I am very thin, so no weight problem - but a great deal of bloating. I never feel good, though I watch what I eat and just don't know where to start to end the debilitating Polymyalgia and get off of the Prednisone. I have tried to no avail. If you have any suggestions at all I would be EVER so grateful!! Thank you!
07:58 PM on 03/11/2012
Dr. Hyman, I would love to know what you think of Dr. Terry Wahls's video on wimp.com, "Minding Your Mitochondria." She's an MD with MS, who strongly believes that by changing to a Paleo diet, she reversed her MS. I too have MS, and have been trying to go gluten and dairy free, although not completely (I've had a few weak moments).
07:26 PM on 03/09/2012
Yes and yes. Wonderful article.
I suffered from all kinds of "mystery symptoms" for 2+ years in college, which grew increasingly worse until I finally figured out I had celiacs. I had headaches, anxiety/fatigue/depression, bad skin and sores on my arms, joint soreness, and very weak/pained extremities, as well as all the symptoms of IBS, and none of the doctors I went to could tell me what was wrong.
My symptoms persisted even after I quit gluten, as I didn't know enough to quit dairy also. I also no longer eat soy and avoid nightshades.
I'm 100% better. It's like night and day.
I will say that it is *very* hard to quit these things--you pretty much have to resign yourself to never eating out, always cooking every meal for yourself. But it'll make you a great cook, and it doesn't have to be time consuming.
Best of health and luck to anyone beginning this process!
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HUFFPOST SUPER USER
Quest2011
Cleverness is not wisdom- Euripides
06:47 PM on 03/08/2012
I can eat all shellfish except shrimp
02:59 PM on 03/08/2012
Dr. Mark Hyman has had some of the best articles on here about health. The reason I say this, is I have learned first hand on some of the things he teaches. Ellimnations of foods then reintroduction is very effective method. Several years ago I had severe Angio Edema and rashes. Several trips to doctors and even a University research hospital simply ended with a prognosis of. "Gee, I hope it gets better", meanwhile here is some Prednasone. I took it upon myself to eat a very bland and healthy diet, very restrictive, and eliminated all additives. After 6 weeks my problems started to go away. In the end I found it was caused by MSG(mono sodium gluamate).
Since eliminating wheat products from my diet, my weight has started to decrease and my energy level has increased and blood pressure down. I am convinced that todays wheat and wheat products are what are making 70% of Americans fat.
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HUFFPOST SUPER USER
Carl Caroli
I just don't understand people
03:50 PM on 03/07/2012
Eliminating gluten and dairy from my diet is very difficult but worth the effort. I was very surprised to find that vinegar and soy also trigger reactions and have eliminated them too. I've never felt better.
06:39 PM on 03/06/2012
I have suffered from chemical sensitivities since I was a teenager. I have tried detoxing with a Naturopath and it hasn't helped. It causes me migraine headaches that last for three days where I am unable to function. I avoid the preservatives etc. but sometimes just smelling someones perfume or cleaning product triggers the migraine. I thought detoxing my liver would help but my headaches are still the same. Any suggestions?
08:01 AM on 03/06/2012
I was treated my whole life with anti-depressants & mood stablizers & I was in & out of mental hospitals until I went off gluten & dairy! I'm absolutely GREAT as long as I follow a strict diet avoiding those foods. I wonder how many other people are suffering like I did? My lab use to shed so bad that we almost got rid of him and then I took him off grains and hardly NO more shedding...WAKE UP people...I know it's hard giving up bread but it's worth it!!
01:24 AM on 03/06/2012
I'm gluten, dairy, tropical fruit, sugar free since January 1st, I've lost over 30 pounds, feel great and am not going back. I had a test done and found out I had food sensitivities to many foods, cut them out of my diet and have never felt better. I believe that many people go undiagnosed for years and sometime never make the connection between the type of food and their problems.
12:38 AM on 03/06/2012
This is where a registered Dietitian comes in hand! Dietitians study and are trained for these types of scenarios, unfortunately 70-80% of MD's aren't trained for food allergies or weight loss..
09:18 PM on 03/05/2012
I was diagnosed a year and a half ago with celiac disease at age 44. My immune system was crashing and I had gained 40 lbs in 2 years. Now, I'm gluten free and am getting a handle on my other health concerns related to undiagnosed celiac disease. Gaining weight has been an uncomfortable experience and that's why I think "fat shaming" is so horrible. Not all fat people are lazy and gluttonous. Many of us are sick and struggling. Healthy slender people should count their blessings and stop heaping shame and disgust on others.
08:39 PM on 03/05/2012
Two years ago during a visit to Paris, I enjoyed daily baguettes, croissants, brioches and a variety of breads which left me lethargic, bloated and uncomfortable by day three. As soon as I said "non" to wheat, I began to feel better. Upon my return to L.A., I started a wheat-free diet, forsaking breads, pastas, even soy sauce. Gone were my migraines, knee pain, stomach issues and midday lethargy as well as temptation to binge on carbs. I suspect my childhood wheat allergy may have something to do with my wheat intolerance. Now when I inadvertantly eat something prepared with flour or decide a slice of New York pizza is worth a shot, I feel the affects.
02:42 PM on 03/05/2012
I suspect that Dr. Hyman is correct that the problem of food sensitivities is greatly under-appreciated. I am a 49 yo lawyer. For the better part of 20 years, I have had daily severe abdominal pain and bloating, and was wakened every night for 1-2 hours with pain. I was hospitalized for 3 days in the early 90's and only left when they wanted to do exploratory surgery. The doctors made me feel like a hypochondriac, and attributed it solely to stress. After reading Gary Taubes' book this past Fall, I stopped eating all refined carbs and sugar which includes all flours and grains of any kind. Within 2 weeks, I was sleeping through the night - what a change! Within a month the abdominal pain was mostly gone. Within 60 days, it was completely gone. And I dropped 20 lbs during the most sedentary part of the year. I now eat meat, vegetables and very little dairy. I don't eat anything that comes in a box. I don't care if it says gluten free or not. That's it, and I am never going back. For 20 years, my life, travel and schedule were dictated by the pain in my gut, and the time needed to accommodate it. Now, all I have to accommodate is my diet, and I far prefer the later. If you have symptoms the medical community is unable to help you with, you owe yourself an experiment with eliminating industrial foods of every kind.
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12:05 PM on 03/05/2012
(cont.)
I lost 15 pounds of bloat, energy came back, and my skin glowed again. (it was expensive, however-I had to get rid of all my size 8-10 pants and go to size 28/size 5-6.) But here's where I learned about food allergies I didn't know I had (again)-the elimination of dairy in the juice cleanse. As soon as I re-introduced dairy, I got very sick. Stomach ache, pain all around the middle, and nausea. Since being both dairy and gluten free (6 months now), I cannot tell you how happy I have been. My face, arms, and back lost all the puffiness.
I also have no problem saying no to the foods at parties, restaurants, etc. When it hurts, it's not a matter of "willpower".