One overlooked benefit of glutamine is that it can bring your body's ph balance back toward the base side, which can be important with protein being acidic and as much protein as bodybuilders take in, it's a convenient way to help. Veggies are on the base side, too, but glutamine is a cheap way to aid in this and if you find it helps in recovery, that's a perk. There's no denying its ph standing, though.