Support WBURPopular Workout Booster Draws Safety ScrutinyPlay04:49Download AudioRob SteinFebruary 15, 2013 ShareSome sports supplements contain the ingredient DMAA. The FDA has warned that DMAA may not be safe. (iStockphoto.com)
Some sports supplements contain the ingredient DMAA. The FDA has warned that DMAA may not be safe. (iStockphoto.com)