According to Food Allergy Research & Education, up to 15 million Americans have food allergies. A May 2017 study in the Journal of Allergy and Clinical Immunology showed that women and Asian people are most affected.
For example, Emmy Rossum has a gluten intolerance. "I've always been gluten-free, so that helps me to not snack on things that, in theory, put on weight," she told Shape magazine. "Not to say that I don’t eat crème brûlée on the weekend — I do! I think if you deprive your body of anything for too long, your body will crave it and be really miserable."
Rossum is far from alone living a gluten-free life, either because of an allergy or by choice. According to Forbes, 3.1 million across the United States follow a gluten-free diet — and 72 percent of them are people without celiac disease avoiding gluten.
That said, let's get into the surprising number of celebs who can't eat gluten, dairy and other allergenic foods.
A version of this article was originally published in June 2017.