Are their any scientific studies on the Master Cleanse? Is the Master Cleanse safe?
First, try to answer specifically what you asked: — Scientific studies: Wikipedia says there is no scientific evidence of any positive effects. If anyone finds studies (whether conclusive one way or the other) hopefully they will update the wikipedia article to reference them. (I assume the reason there is a lack of scientific evidence is that scientists can see immediately that this will not “cleanse” the body and that it is unhealthy to deliberately starve study subjects). — Safety: Probably not actually dangerous if you only persist for up to a week or so. But obviously not healthy. However, I don’t think a rational person needs to go much further than the name to confirm a strong suspicion that this is bull. Since its a type of fast, you almost certainly will be very hungry and lose a lot of weight. Of course you will be starving your body of some important nutrients and protein and not just losing fat. If these people actually think that this non-scientific “detoxification” will