The American Dietetic Association (ADA), now known as the Academy of Nutrition and Dietetics, is a professional organization for dietitians and nutritionists in the United States. Founded in 1917, it aims to advance the profession of dietetics and promote optimal nutrition and health for the public. The organization provides resources, education, and advocacy for its members. The ADA also develops evidence-based guidelines and position papers on various nutrition topics. It plays a crucial role in shaping public policy related to food and nutrition, ensuring that dietetic professionals are equipped with the latest research and best practices in the field.