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This October 23, 2012 photo illustration shows a variety of Monster Energy drinks in Washington, DC. The US Food and Drug Administration is investigating five deaths and a heart attack for possible links to consumption of Monster Energy drinks, an agency spokeswoman said Tuesday.
More questions are being raised about the safety of energy drinks like Monster and 5-Hour Energy.
Those brands have exploded in popularity in recent years, but health officials warn they may be linked to as many as 13 deaths. The U.S. Food and Drug Administration has been investigating the drinks, and now California state officials are looking into them as well.
Mina Kim reports.