A wrongful death lawsuit has been filed by the parents of a soldier who died after taking a workout supplement containing a dangerous stimulant, according to court documents.
The suit was filed by the parents of Michael Sparling against the manufacturer of Jack3d, a supplement containing the stimulant dimethylamylamine (DMAA), and GNC, the retail store where the supplement was purchased.
The parents claim that the manufacturer, USPlabs, failed to warn customers that DMAA can raise blood pressure and increase heart rate to a dangerous level if combined with other stimulants, such as caffeine.
According to a study published in Military Medicine, Jack3d mixed with caffeine can cause heart attack and stroke, and has been linked to the deaths of two soldiers.
Although the supplement is still marketed and sold at GNC stores and other chains, the Defense Department has prohibited it from being sold on military bases.
The suit is seeking an unspecified amount in damages.