Rosemarie Muth has been leading NATURION, a non-profit organization dedicated to promoting natural healing methods, since 1993. She opened the eponymous organic hotel in the Hochschwarzwald, where she provides her guests with meals based on the principles of alkaline and wholesome nutrition. Since 2003, she has been closely collaborating with the osteoarthritis self-help group founded by Eckhard K. Fisseler. His holistic osteoarthritis therapy now has over 60,000 users, all of whom have experienced that, contrary to the views of many conventional medical practitioners, a dietary shift to alkaline foods and a balanced acid-base ratio in the body can lead to pain relief and even healing in many degenerative diseases, enabling a mobile life without medications and surgeries. An introduction to the fundamentals of alkaline nutrition according to GAT and its effects.