American Academy of Nutrition and DieteticsThe Academy of Nutrition and Dietetics is the world's largest organization of nutrition and dietetics practitioners, representing more than 112,000 credentialed practitioners - registered dietitian nutritionists, nutrition and dietetics technicians, registered, and other food and nutrition professionals holding undergraduate and advanced degrees in nutrition and dietetics, and students. It is committed to improving health and advancing the profession of nutrition and dietetics through research, education and advocacy.