Digestion

The American College of Gastroenterology – Advancing gastroenterology, improving patient care
www.acg.gi.org

International Foundation for Functional Gastrointestinal Disorders – Nonprofit organization informing, assisting and supporting people affected by gastrointestinal disorders (GI)
www.iffgd.org

National Institute of Diabetes and Digestive and Kidney Diseases – Conducts and supports research on many serious diseases affecting public health
www.niddk.nih.gov