My son drank Mt Dew as a child as we were all popaholics and just last year he had to have all his teeth removed and got dentures at the age of 32. The dentist told him it was all the caffeine he drank growing up that contributed to the problem. MT Dew has the highest amt of caffeine of pops. EXCept for the new market of caffeine loaded drinks of course. Our family doctor says the same thing. He hates to see anyone drink MT Dew.