BCAAs vs. Glutamine: Which is Better for Muscle Recovery? In the fitness industry, two of the most popular supplements are Branched-Chain Amino Acids (BCAAs) and Glutamine. They are touted for their roles in muscle growth, recovery, and overall athletic performance. This article delves into their functions, benefits, and how they differ, helping you decide which might be more suitable for your fitness goals. David Robinson, PhD UK Fitness ProJan 8 · 6 min read