When you want to drop some weight, it's tempting to look for help anywhere you can. If your thoughts turn to supplements or herbal remedies, keep in mind that research gives many of them mixed reviews. In some cases, there isn't a lot of science to back up the claims, and some have health risks. Talk with your doctor first before you try any. Also, you should know that the FDA has cracked down on some weight loss supplements that had prescription drugs in them that weren't noted on the label. You can't always tell what you're getting. The FDA regulates dietary supplements, but it treats them like foods rather than medications. Unlike drug manufacturers, the makers of supplements don't have to show their products are safe or effective before they sell them.