In this video, James Grage answers the most popular question in the fitness world when it comes to lean muscle building: “Which is better for building lean muscle – branched chain amino acids (BCAAs) or protein?”

When building muscle it’s difficult to understand whether you should use a protein powder, a BCAA powder or both. Grage says when it comes to sustaining real muscle growth, recovery and repair you must take both a BCAA powder and protein powder. Watch the full video to hear Grage’s reasoning behind this pairing.