DMAA, an ingredient found in some workout supplements and banned by federal regulators in 2013,remains widely available online, according to the Defense Department's Human Performance Resource Center.

A woman who died during last year's London Marathon had a powder containing the banned stimulant DMAA in her water bottle, The Guardian reports. Claire Squires, 30, collapsed and died in the final ...

DMAA, an ingredient found in some workout supplements and banned by federal regulators in 2013,remains widely available online, according to the Defense Department's Human Performance Resource Center.