"People assume that taking extra Vitamin C will prevent colds or lower their risk of cancer or any other disease. Vitamin supplements have been well studied and it's been concluded that not only are they not good for you but can be harmful if taken in large doses, like Vitamin E. If you look at the consensus papers, they very consistently show that there is no benefit to taking these, but people want to believe otherwise," Dr. Richard A. Baxter, a board certified plastic surgeon in Washington and a contributor to HealthyAging.net.
"The only alternative is a healthy diet with lots of fruits and vegetables. If you believe you need to take antioxidants for your health, you need to get polyphenols from things like blueberries and red wine. You cannot eat a poor diet and make it up with vitamins. The only exception to the rule seems to be Vitamin D."
"Under federal law, the Dietary Supplement Health and Education Act of 1994, the manufacturer is not required to demonstrate that its product is pure, safe and effective. So consumers beware," says Dr. Gary Wadler, board certified internist practicing on Long Island and an expert on drug use in sports. "Plus, many have interactions with medications that consumers are taking. Because they have interactions, both patients and doctors need to be aware of it. And in my area of sports, athletes are testing positive, because they are taking contaminated dietary supplements."
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