7. Mariel Hemingway
Of course, not all of the celebrities who are on the diet have gluten-related issues. Some of them are just health advocates who don’t believe in eating gluten. Mariel Hemingway, the granddaughter of Ernest Hemingway, is one of those that believes gluten is just not good for you. She maintains adopting a gluten-free diet provides good health and well being.
Photo source: Mariel Hemingway by Cynthia Smoot