GU’s Recovery Brew is a post-workout formula for endurance sports and it has just received a new flavor, chocolate smoothie. When it comes to these sorts of athlete’s and their supplement protein is no where near as important as high carbs and calories. This is easily reflected in the formula of Brew, 8g of protein and 46g of carbs, 21g of that sugar. To spice things up for the not so supplement driven people GU have even put in some glutamine and argnine.