GLUTA SURGE XM is an amino acid, just like protein. It is the most abundant free amino acid in muscle tissue, and it plays a principal role in protein metabolism, cell volumizing, and anti-catabolism. Yes, lots of big fancy words, however, “anti-catabolism” is the reason that I started to use it and continue to do so. Catabolism is the breaking down of your muscles, which is something that you don’t want to happen. Doing cardio or aerobic activity could have a catabolic effect on your muscles. Your body needs something to burn for energy when you jog, run, walk, ride a bike, jump rope, take an aerobics class or do any other form of cardio, and sometimes your body uses your own muscle for energy. This is where GLUTA SURGE XM comes in. Since it is an “Anti-catabolic” it will allow you to maintain as much muscle as possible and prevents muscle cell breakdown.