Untested stimulant found in dietary supplements

Supplements have been found to contain a untested stimulant known as DMBA. This synthetic substance may cause heart attacks, says experts. The substance is often listed as 2-amino-4-methylpentane or 2-amino-4-methylpentanamine. - Filepic

At least a dozen dietary supplements available in the US contain a potentially dangerous synthetic stimulant that has never been tested on humans, says a new study.

The inclusion of the stimulant known as DMBA in dietary supplements has researchers and an industry group calling on the US Food and Drug Administration (FDA) to take action.