Ph D Fitness Overview Many studies have shown that to optimise muscle recovery you need to consume a blend of fast & slow acting carbohydrates & fast acting proteins in a ratio of 2:1 immediately after training. This is why Ph D Recovery 2:1 contains the perfect blend of waxy barley starch, a market first, along with dextrose. Waxy barley starch is an ultra low GI carbohydrate with all the goodness of barley, so after the dextrose has replenished muscle glycogen levels & create the insulin spike post-workout, the waxy barley starch will help nurture the muscle back to a full recovery. Ph D have also utilised BCAAs, micronised L-Glutamine, whey protein isolate, peptide bonded Glutamine, antioxidants & micronised creatine to further enhance overall recovery.