If you’re trying to build muscle, you are likely hitting it hard in the gym to achieve your desired gains. However, as a nutritionist and trainer, I have seen time and again that it’s hard to see any ...

Eating just 5 percent more calories daily can do the trick.

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Despite what many workout equipment ...