"His writing on diet was written with the French in mind. Ohsawa had observed that no matter how limited he made his dietary suggestions, the French always cheated and ate a broader range of foods. Thus, he made a dietary suggestion of brown rice, gomashio (sesame salt), and a little bancha tea only. This diet became known as diet number seven and was to be used for short times as with a fast. When this diet was brought to the United States, however, Americans were able to follow it without cheating and for long and, at times, dangerous periods of time."
January 1, 1970
https://en.wikiquote.org/wiki/George_Ohsawa