The U.S. Food and Drug Administration DOES NOT strictly regulate herbs and supplements. Please re-read the first sentence. This means that any supplement you are taking for “health” and “fitness” could be doing the exact opposite. Because the field is so unregulated there are no guarantees of strength, purity, or safety of the products. WORD OF CAUTION: There is no research on the long-term safety outcomes of any supplement. Here is a list of a few popular supplements that h