2.Many supplements are contaminated with metals, unlabeled prescription drugs, microorganisms, or other substances. In U.S., dietary supplements are regulated by FDA (Food and Drugs Administration) as foods. The government is not responsible for the safety and effectiveness of the supplements. It's the supplements manufacturers' responsibility to ensure the effectiveness, safety, potency and efficacy of the products. Many manufacturers took for granted. Most supplements today are produced in less than

3.Many supplements have false claims and inaccurate labels. Because dietary supplements are loosely regulated, there is no pressure to ensure the accuracy of the labels of the products. This means that you may be taking less, or more of the ingredients stated on the labels. In addition, there are products that promise to cure diseases and wide spectrum of health problems. Most of these claims are rather questionable, for example: - A product called "Sea Silver" said their product have 98% bioavailability because liquid can bypass the digestive system. As mentioned earlier, the only way for liquid to bypass the digestive system is through injection, not drinking. - Barefoot coral calcium supplements is said to be able to 'neutralize' the toxic acidity of blood. The truth is, calcium supplements can only change the acidity of body fluids.
About the Author

Yi Lai is editor of http://www.health-supplements101.com : How to choose the most potent supplements for your health. Contact her at http://www.health-supplements101.com/archive.htm