These Surprising Drinks Are the Best Thirst-Quenchers
Hint: don't ignore beer.
By Eve Conant
Move over, glycemic index. British researchers are creating a beverage hydration index. The less a drink is peed out over two hours, the higher its “BHI” compared with water, rated “1.” Minerals and nutrients, like sodium and casein protein in milk, can raise the score. Fun fact: Researcher Stuart Galloway says a few cups of beer (lager beer – 1) or tea can be as hydrating as water.