I was curious and googled
"The basic concept of the diet is simple: eat three or four meals a day, with each meal consisting of 400 calories. You still get to eat all of your favorite foods but you just have to be aware of monitoring your portion sizes. The author says that the goal is to “start retraining your mind to see food the 400-calorie way”. "
I personally wouldn't be able to stick to it because I like snacking/grazing, but I hope it works out for you!
22 year old nurse in training!