Carline, I agree that the issue is to do research to find out what actually works. The problem is that nutrients have not been researched scientifically while drugs and STN stimulation etc have. In addition so called "natural substances" are not controlled for safety. So one should look even more askance at them than pharmaceuticals which also have their risks. Remember tobacco, alcohol and opium and marihuana are "natural substances" not "strictly speaking drugs". Lithium Carbonate is a mineral but also "a drug". It can be quite beneficial to people but also quite toxic depending on the dose. As imperfect as the FDA is I would rather put my faith in their testing for safety and efficacy rather than the claims of a few people who have something emotionally or financially to gain from its promotion. Charlie