Going Gluten-Free Just Because? Here’s What You Need To Know From Harvard Health Publishing–After being confined to health-food stores for years, gluten-free foods now show up everywhere. Supermarket aisles abound with products proudly labeled “Gluten free,”and many restaurants now offer gluten-free options.
Dr. Leffler’s take on gluten
For people who can’t tolerate gluten, a protein found in wheat, rye, and barley, this abundance is a blessing. However, lately it’s become hip to go gluten free. Based on little or no evidence other than testimonials in the media, people have been switching to gluten-free diets. They do this to lose weight, boost energy, treat autism, or generally feel healthier. This doesn’t make sense to Dr. Daniel A. Leffler. Dr. Leffler is director of clinical research at the Celiac Center at Beth Israel Deaconess Medical Center in Boston.
“People who are sensitive to gluten may feel better, but a larger portion will derive no significant benefit from the practice. They’ll simply waste their money, because these products are expensive,” says Dr. Leffler. Dr. Leffler is also an assistant professor of medicine at Harvard Medical School.
How gluten causes trouble
People with celiac disease can’t tolerate gluten, not even small amounts. In people with celiac disease, gluten triggers an immune response that damages the lining of the small intestine. This can interfere with the absorption of nutrients from food. It may cause a host of symptoms, and lead to other problems like osteoporosis, infertility, nerve damage, and seizures.
A related condition called gluten sensitivity or non-celiac gluten sensitivity can generate symptoms similar to celiac disease but without the intestinal damage.
Not long ago, celiac disease was diagnosed by a process of elimination. Today it can be identified with a blood test.
Going gluten free
Avoiding gluten means more than giving up traditional breads, cereals, pasta, pizza, and beer. Gluten also lurks in many other products. These may include frozen vegetables in sauces, soy sauce, some foods made with “natural flavorings,” vitamin and mineral supplements, some medications, and even toothpaste. This makes following a gluten-free diet extremely challenging.
If you’re determined to go gluten free, it’s important to know that it can set you up for some nutritional deficiencies. Fortified breads and cereals have become a major source of B vitamins in the United States. Although breads made with white rice, tapioca, and other gluten-free flours are becoming more common, they are generally not fortified with vitamins. This can be a problem for anyone, but it’s especially worrisome for women who are pregnant or may become pregnant. They need vitamin B9, more commonly known as folate or folic acid, to prevent birth defects. Taking a gluten-free multivitamin-multimineral supplement is a good idea for anyone trying to avoid gluten.
Whole wheat is also a major source of dietary fiber, which the bowels need to work properly. “The average American diet is deficient in fiber,” says Dr. Leffler. “Take away whole wheat and the problem gets worse.” It is possible to get the fiber you need from other grains, such as brown rice or quinoa, or from fruits, vegetables, and beans.
Celiac disease or gluten sensitivity
If you think you might have celiac disease or gluten sensitivity, it’s best to see a doctor before you go gluten free. Once a person has avoided gluten for a while, it becomes difficult to establish if he or she has celiac disease, gluten sensitivity, or neither.
There’s one more thing you might consider doing: keep your dietary choice to yourself. The more than 300,000-plus people in this country with celiac disease have to follow a gluten-free diet, because the tiniest taste of gluten will trigger debilitating gastrointestinal discomfort. It’s time consuming, expensive, and restrictive. “It’s a gigantic burden for those who have to follow it,” says Dr. Leffler. “They get frustrated when they hear how wonderful this diet is.”
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