>Getting someone to loose weight is a lot like getting someone to stop doing drugs. If they dont want to do it, you are pretty much screwed unless imprisonment is an option. You yourself stick to your diet or you dont.
Right, so the question is, how can you design such a study where control calorie intake and get people to adhere to it? The only way you can do it is to lock them in a facility where their intake and exercise are strictly controlled, which is either too expensive or not ethical or both. It is basically impossible to conduct such a study, let alone being able to issue effective recommendations based on it if your hypothesis is supported by the study.
Right, so the question is, how can you design such a study where control calorie intake and get people to adhere to it? The only way you can do it is to lock them in a facility where their intake and exercise are strictly controlled, which is either too expensive or not ethical or both. It is basically impossible to conduct such a study, let alone being able to issue effective recommendations based on it if your hypothesis is supported by the study.