In 1931, the Bureau of Investigation of the American Medical Association (AMA) issued an article on Bragg which stated that he was a "food faddist and sexual rejuvenator debarred from the mails." Arthur J. Cramp of the AMA dismissed Bragg as a "charlatan". Bragg held pseudoscientific views about dieting and disease. He stated that tonsillitis is the result of people eating "mucus forming foods", cancer is caused by "gooey, slimy foods" and that colds are caused by the consumption of white bread or ice cream. Bragg firmly opposed the use of white bread and white flour and sold a substitute for each.