We are not recommending this diet. On the face if it, if you had to cook up the ultimate stereotype of a wacky fad diet for use in a comedic novel or film, the Shangri-La Diet would fill the bill.
Basically, you don't eat anything (other than flavorless water) from 8:30 to 10:00 a.m. and then you have either a quarter cup of sugar in a liter of water or a half tablespoon or so of extra light olive oil (without the water). Then nothing with any flavor until 12:00 noon when you eat lunch. Repeat at 2:00 to 2:30 p.m. in the afternoon and listen to what your body tells you.
Often done in connection with a twelve step program.
The batscience is interesting, but batscience at present. On the other hand, for some people it really works.