Just last week, the Food and Drug Administration gave a warning about the dangers of using the diet supplement Hydroxycut. The FDA wants people to stop using this supplement because of the risk of liver damage. According to the FDA. they received numerous reports of people who suffered from irreversible liver damage after using the product. These diet supplements are not regulated by the FDA so one is taking a big risk by using it. Hydroxycut is used for weight-loss just like products that contain caffeine or ephedra.