Maxi Nutrition Promax is a high quality protein blend containing both fast and slow release proteins to provide a continual supply over a four hour period.Each serving contains 30g of Protein and 8.1gs of BCAAs. Protein contributes to a growth in and maintenance of muscle mass. BCAAs contribute to protein synthesis and also support lean muscle especially after exercise.Low in sugar, this delicious shake has had Calcium and Magnesium added. Both of these nutrients contribute to normal Energy Yielding Metabolism and have a role in cell division. Magnesium also contributes to normal protein synthesis, electrolyte balance and to a reduction in tiredness and fatigue.Every batch of Maxi Nutrition Promax has been screened for banned substances and are registered with Informed Sport.