Have you heard of alli? If you did let me refresh your mind of what is this. This is an effective diet supplement that really shows results in a short period of time. The only problem with this diet supplement is that it can cause diarrhea so there was a time that the FDA condemned alli because of this side effect. With months and even years of thorough adjustment as well as reformulation this food supplement is once again back in the market. It is now an OTC product as mandated by the FDA, it is very effective in shedding weight. According to what I read about this product, alli actually blocks the passage of fats in the bloodstream. So when alli users eat fatty food the fats are not absorbed in the bloodstream and eventually it will be excreted.