Most people (including me) eat because they're bored, or they have nothing better to do, or because it's meal time. Not because they necessarily need the nutrients.
I agree. And I think that's how most fad diets work: they are roundabout methods of calorie restriction. It's really hard to eat 3000 calories worth of vegetables, or even lean meat.
I remember a passage from a health class textbook from years gone by, regarding commercial over-the-counter diet pills: "What works is the little circular in the package telling you to eat less."
