That's what Consumer Reports is saying...http://seniorjournal.com/NEWS/Nutrition-Vitamins/2014/20141121_Going-Gluten-Free-May-Not-Be-Good-for-Your-Health-Consumer-Reports.htm
Unless someone has a gluten sensitivity or celiac disease – an autoimmune condition in which gluten causes potentially life-threatening intestinal damage – Consumer Reports says there is little reason to eliminate gluten, and doing so may actually be a disservice to one’s health. Less than seven percent of Americans have these conditions.
A quarter of the people CR surveyed thought gluten-free foods have more vitamins and minerals than other foods. But CR’s review of 81 products free of gluten across 12 categories revealed they’re a mixed bag in terms of nutrition. Many gluten-free foods aren’t enriched or fortified with nutrients such as folic acid and iron as many products that contain wheat flours are.
And according to CR’s survey, more than a third of Americans think that going gluten-free will help them slim down, but there’s very little evidence that doing so is a good weight-loss strategy; in fact, the opposite is often true. Ditching gluten often means adding sugar, fat, and sodium, which are often used to pump up the flavor in these foods; these foods also might have more calories and consuming them could cause some people to gain weight.