If following a gluten-free diet means eschewing whole grains, that can be especially problematic, because whole grains are associated with numerous health benefits, especially for heart health. As part of a healthy diet, high intake of whole grains has been associated with reduced risk of heart disease, some cancers, Type 2 diabetes, obesity and death from numerous causes, including infections and respiratory diseases.
Celiac Disease and Gluten-Free Eating
Trying to maintain a gluten-free lifestyle? Here’s what you should know:
“Gluten-free substitute foods tend to have more fat, more sugar and more salt than gluten-containing counterparts, in general,” Dr. Lebwohl added. Gluten provides elasticity in dough and helps thicken various processed foods, so it can also be found in products like energy bars and deli meats. To compensate for the loss of texture, Dr. Lebwohl said, “gluten-free substitutes are often less healthy.”
Starting a gluten-free diet can also “interfere with the ability to detect celiac disease,” said Dr. Lebwohl, because the two abnormalities picked up by the primary testing tools for celiac disease — a blood test, which looks for certain antibodies, and a biopsy, which looks for intestinal damage — can normalize after just a few weeks of eliminating gluten.
“One of the frustrating scenarios for both doctor and patient is when a patient has a number of symptoms, starts a gluten-free diet, feels a lot better — maybe 90 percent better — but we still don’t know if they have celiac or not,” he said. “If someone is experiencing symptoms that might be related to celiac disease, that person should get tested first, before starting a gluten-free diet.”
While much has been written in books and online sources about the purported benefits of avoiding gluten, such as weight loss, cognitive well-being and overall wellness, these claims are not supported by evidence. Though some patients with irritable bowel syndrome, or I.B.S., may see symptoms improve after cutting out gluten-containing foods, research suggests it’s likely to be a result of something other than gluten.