Those who are on low carb diets than smoothies are simply a nightmare. Atkins Diet, the Zone Diet, the Scarsdale diet, to name a few. Your mouth taste metallic, neural chemistry may function oddly, and that you will lose a great deal of fat and fluid. It seems that the "low carb craze" was nothing more than just a passing craze. Ma Huang is really a stimulant containing ephedra.