Sports drinks have been designed to help professional athletes recover from the stresses their intense athletic activities put them under, and they’re usually administered in carefully-controlled circumstances. If not, these drinks don’t really do that much to improve your performance, hydration or overall health. They’re full of sugars and acids that over time cause tooth erosion and decay.

Water. Yep, good old tap water deals with the signs of dehydration such as a dryness or acidic taste in the mouth and excessive sweating in no time at all. It’s free and comes packed with fluoride that’s been proven to protect your teeth and reduce decay.