Not eating, really, is the most effective, but my health may get worse. I'm a fat man myself. I think it's better for weak and thin people to be healthy and fat. In this age of looking at faces, a healthy fat man can only be a porter. I lost 20 pounds in three months. Just try it. This is the fastest for me. I don't eat a bite of rice, but I eat some sugar when I'm really hungry.