Scientists warn about stimulant in workout supplements

October 10, 2014 6:17 PM

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Scientists and some supplement industry officials are concerned about AMP Citrate, an ingredient similar to DMAA that's appearing in products marketed for workouts, weight loss and mental focus.

Makers of dietary supplements are at it again, putting a new chemical stimulant – untested on humans — into workout, weight-loss and brain-function products sold widely through retailers including Amazon and GNC. Yet federal regulators have taken no action despite the urging of scientists and a supp...

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