William Howard Hay
William Howard Hay, MD (1866 – 1940) was a New York doctor, author, lecturer, and director of The East Aurora Sun and Diet Sanatorium. He is principally known for the 'Hay diet', a food-combining dietary system.
Hay graduated from the New York University Medical College in 1891 and was licensed in Pennsylvania. Following graduation he practiced in Youngsville, and was the surgeon for the American Tinplate Company of New Castle. While he was in Pennsylvania he set-up the Hay Rest Cure which was advertised as "a special service department for the cure of hay fever cases". In 1905, it seems he had an episode of acute heart failure following running for a train. As a result he discovered that he had Bright's disease (or hypertension) with a dilated heart, a condition with a poor prognosis at the time. As a consequence he changed his diet, discontinued coffee and stopped smoking. His condition improved, he lost weight and his blood pressure fell. Over the next 4 years he developed a dietary system based on this experience. The dietary system he developed involved fasting and promoted the idea that certain foods require an acid pH environment in digestion, and other foods require an alkaline pH environment, and that both cannot take place at the same time, in the same environment.
In 1921 he went to Buffalo and in 1927 he was appointed director of the The East Aurora Sun and Diet Sanatorium. where he developed the 'Sun-Diet Menus'. In this period Hay was a member of the Medical Advisory Board of the Defensive Diet League of America, and campaigned against the use of aluminum cooking utensils, vivisection and vaccination for smallpox. In 1930 he resigned from his local medical society just before charges of unethical advertising were preferred. In 1932 he purchased the Pocono Hay-ven resort and in 1935 became the Medical Director of Hay System, Inc. The Hay diet was popular around that time and many restaurants offered 'Hay-friendly' menus; followers of his dietary advice, who called themselves “Hayites”, included Henry Ford. Hay was criticized in the Journal of the American Medical Society (JAMA) as a food-faddist and later for advocating that a patient with type 1 diabetes stop taking insulin. However, despite continual criticism over lack of a scientific basis, the Hay diet and its variants, such as the Kensington diet  and the Beverly Hills Diet, have remained popular to this day, with actors such as Elizabeth Hurley, Helen Mirren and Catherine Zeta-Jones following food-combining diets.
- The Medical Millennium, (1927)
- How to Always Be Well, (1967)
- A new health era, (1939)
- Health Via Food, (1929)
- Weight control, (1935)
- What price health, (1946)
- Dr. Hay diet
- Robert Young (author) diet
- Acidosis (low blood pH)
- Alkalosis (elevated blood pH)
- Acid-base physiology
- Acid-base homeostasis kidney and lung and buffering activity
- Mixed disorder of acid-base balance
- "Bureau of Investigation. William Howard Hay. Capitalizing Food Fads and Fantasies.". Journal of the American Medical Association 100 (8). 1933. doi:10.1001/jama.1933.02740080059028.
- Hay, William Howard (1932-01-01). Health Via Food.
- "Sun Diet Sanatorium | Dharma Talks". neozen888.wordpress.com. Retrieved 2016-07-23.
- Hay, William H. (1993-04-01). The Medical Millennium. Health Research Books. ISBN 9780787303860.
- Columbia, United States Congress House Committee on the District of (1946-01-01). Prohibit Vivisection in the District of Columbia: Hearings Before the Committee on the District of Columbia, House of Representatives, Seventy-ninth Congress, Seccond Session, on H. R. 5572, a Bill to Prohibit Experiments on Living Dogs in the District of Columbia. U.S. Government Printing Office.
- McBean, Eleanor (1993-04-01). The Poisoned Needle. Health Research Books. ISBN 9780787305949.
- "Address of William Howard Hay, MD". International Medical Council on Vaccination. Retrieved 2016-07-23.
- Gilman, Goldwin Smith Professor of Human Studies Sander L.; Gilman, Sander L. (2008-01-23). Diets and Dieting: A Cultural Encyclopedia. Routledge. ISBN 9781135870683.
- "WIlliam Howard Hay". Journal of the American Medical Association 106 (1): 63–63. 1936-01-04. doi:10.1001/jama.1936.02770010021053. ISSN 0002-9955.
- "Logic behind call to avoid certain food combinations is faulty | The San Diego Union-Tribune". www.sandiegouniontribune.com. Retrieved 2016-07-23.
- Foxcroft, Louise (2012-01-05). Calories and Corsets: A history of dieting over two thousand years. Profile Books. ISBN 1847654584.
- "Debunking the Myth of Food Combining". Retrieved 2016-07-23.
- "Have these dieters got their combinations in a twist?". 1998-01-11. Retrieved 2016-07-23.
- Habgood, Jackie (2011-01-02). The Hay Diet Made Easy: A Practical Guide to Food Combining. Souvenir Press. ISBN 9780285639126.
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