They always choose the wrong approach on losing weight. It is not that they eat too much it is that they are really addicted to food. During My biggest loser their impulses aren't controlled by them they are controlled by their trainers. their trainers will be gone and so is their impulse control. they don't learn to eat properly. They only do what they are good at. Giving away responsibility. And when they get it back, they ignore it. that's why you are giving addicts some "easy" tasks they can do and feel accomplishment. They feel responsibility again.  Addicts learn, you can achieve a lot being sober. Fats only learn. They can only loose weight if someone is helping them for the rest of their lifes.  and I still don't get the idea. Why one year of hard work would be worse than 20 years of constant growing suffer.