Herbert Shelton wrote 40 books over his 60-year career in health education and "e;natural hygiene."e; He supervised over 30,000 fasts of chronically ill and terminal patients, losing only three. Shelton's teachings on fasting inspired Ghandi. Harvey and Marilyn Diamond said of Shelton: "e;A man of astounding intelligence and understanding, Dr. Herbert Shelton was the greatest health oracle of the 20th century."e;