How much protein do you need? For a while, studies seemed to suggest that the benefits of postexercise protein topped out at about 20 grams, but more recent research implies that some athletes with a lot of muscle mass may benefit from something more like 40 grams, says James Betts, a sports nutrition researcher at the University of Bath. What’s the best number? Researchers are still debating the answer to that question, and the best way to resolve it is with more data.
