Alkaline diet – a restrictive diet of non-acid foods, such as that proposed by Edgar Cayce (1877–1945),[12] based on the claim this will affect the pH of the body generally, so reducing the risk of heart disease and cancer. According to the Canadian Cancer Society, "there is no evidence to support any of these claims."[13] Breuss diet – a diet based on vegetable juice and tea devised by Rudolf Breuss (1899–1990), who claimed it could cure cancer.