Warrior Equilibrium is a whey blend of fast and slow release proteins. It combines Whey Protein Isolate and Micellar Casein.Protein contributes to a growth in and the maintenance of muscle mass and is therefore an important nutrient for those who are working for enhanced muscle growth. Protein shakes such as Equilibrium are an easy and convenient way to increase protein intake.Warrior have combined fast and slow release proteins due to the biological demand for protein at different times. For example after exercise or upon waking, your body requires fast release proteins while between meals and before bedtime your body requires slow release proteins to drip fed muscles over a period of time.Warrior Equilibrium is suitable for Vegetarians and Gluten Free. It does not contain Acesulfame Potassium (Ace-K) or Aspartame.