More and more eating establishments are catering to diners who have a food allergy. The Food Allergy Initiative estimates that 15 million Americans have at least one food allergy. Another three million have celiac disease, an autoimmune reaction to gluten, and millions more avoid gluten for other health reasons. Both food allergies and gluten issues are mysteriously on the rise. Some restaurants estimate that 1 in five tables have a person with a special dietary need. The Gluten Intolerance Group of North American and the NFCA offer lists of restaurants that are trained in serving gluten-free foods and AllergyEats.com provides a forum for customers to rate the allergy-friendliness of restaurants.