The answer may surprise you.

It might be more than you think.

Plus, exactly how to train to sculpt your muscles.

12-minute bodyweight workout after 55, with exclusive quotes from certified trainer Michael Betts. Get the 6-move plan.

To build muscle mass, you need around 0.5–0.9 grams of protein per pound of body weight per day. Here's why and other factors ...

MRI data shows skeletal frame size predicts muscle potential better than height, weight or BMI ...

Some of the best muscle-building foods include protein-rich chicken, salmon, and lentils. You can pair dietary changes with ...

Many dedicated gym-goers find themselves frustrated after months of consistent heavy lifting with minimal muscle growth to show for their efforts. The answer often lies beyond the weight room, in ...

A sports dietitian reveals the best Costco foods for building muscle, from lean proteins to dairy, seafood, and easy recovery ...

Starting a new strength training program? Here's what you need to know about how long it takes to build muscle. When it comes to muscle building, it's all about repetition and being consistent with ...

Are you looking to grow your muscles? Growing your muscles is often a goal for many of us. Some of us would like to grow our muscles to obtain a particular physique, while others just want to become ...

Working out doesn't just build muscle but, in later life, helps maintain a powerful cellular machine that repairs damaged ...