Are energy drinks safe? For some, there are questions.

  • Debbie Lord
  • Cox Media Group National Content Desk
5:53 p.m Wednesday, June 1, 2016 National/World News
392259 01: A Red Bull energy drink mixed with vodka sits on the bar at Sloppy Joe''s July 22, 2001 in Key West, FL. The popular energy drink is now trendy at clubs as a mixer. (Photo by Joe Raedle/Getty Images)