Good for energy; bad for tooth enamel. That’s the verdict on energy drinks revealed in a study recently published in General Dentistry. In an effort to determine the acidity levels in 13 sports drinks and nine energy drinks, study authors immersed samples of human tooth enamel in each beverage for 15 minutes, followed by immersion in artificial saliva for two hours, then repeated the exercise four times a day. After only five days, damage to the enamel was readily apparent, and energy drinks did twice as much damage as sports drinks. Read more here. Yikes!