Possibly Unsafe Stimulant in Some Diet Supplements

From the WebMD Archives

Oct. 10, 2014 -- A potentially dangerous stimulant called "AMP Citrate" or DMBA is common in diet supplements, a new study warns.

Researchers tested 14 weight loss, workout and brain enhancement supplements and found that 12 contained DMBA. It's chemically similar to DMAA, which is banned by the U.S. Food and Drug Administration, CBS News reported.

The makers of the products claim that DMBA is derived from tea, but there is no evidence that the stimulant has even been extracted from a plant, and DMBA has never been studied in humans, according to the authors of the paper in the journal Drug Testing and Analysis.

DMBA is "similar to amphetamines, which have cardiac and neuropsychiatric effects, and it is a cousin to a stimulant called DMAA that was pulled from the market in 2012 for having 86 adverse events recorded that include heart attack, stroke, seizure and death," according to CBS News medical contributor Dr. Tara Narula, a cardiologist at Lenox Hill Hospital in New York City.

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