Taurine is the latest energy drink ingredient that's been surging in popularity. Taurine is a naturally occurring essential ...

Amino acids, which are the building blocks of protein. The 11 amino acids our bodies synthesize are called “nonessential,” but we need nine others (known as “essential”) to survive.

There are about as many performance supplements on the market as there are protein-packed foods in a WH editor’s fridge.