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Popular Sports Supplements Contain More Than Meets the Eye

Banned and novel stimulants found in popular supplements.

Are you or someone you know using sports or weight-loss supplements? Harvard Medical School researchers analyzed six popular brands of these and found two banned stimulants and two novel formulations, some at surprisingly high levels. The authors encourage physicians to "remain alert to the possibility that patients may be inadvertently exposed to experimental stimulants" by using these products.

PositiveTip: It is best to avoid supplements which claim to enhance energy or stimulate weight loss.