> You can literally do the same thing by eating a healthy diet for 2-4 weeks.

You have been downvoted, but that's true(and supported by evidence and science). Statistically, what most people have is sugar addiction. Simple carbs in general completely mess up your hunger hormones.

The problem is that most people don't know what a healthy diet is. The food pyramid isn't it. Drinking a bunch of juice isn't it. Cereal is candy. They try "eating healthy", fail (not realizing what they are eating isn't healthy at all) and give up.