“I want to know how to build lean muscle without getting too big.” The new Beachbody programs #mbf and #mbfa has been a game changer for me, and a great way to start building my muscle. If you have been cautious about lifting to build muscle because you don’t want to become “Too Big”, then you should check out the following article about building lean muscle. As the article states, muscle is muscle, but there are different techniques to building muscle and achieving the outcome you are looking for.