Muscle recovery at night and between meals. 24g Protein - Premium slow-release micellar casein protein. 9 g essential amino acids** – supports endurance and recovery. 1 g sugar. Artificially flavored. 100% protein from micellar casein. Protein powder for drinking. Authentic Optimum Nutrition product. Information – We test – You trust – The selection is regularly tested for prohibited substances. An excellent source of magnesium. An excellent source of zinc. Why Gold Standard 100% Casein? Contains 24 grams of slow-release premium micellar casein to support muscle recovery. Slowly digestible protein can be used to support muscle recovery during periods when you go without food, for example during sleep or between meals. 9 grams of natural essential amino acids (EAA) to promote muscle recovery. Active lifestyle. Sports results. Strength training. Optimum Nutrition is trusted to provide the highest quality post-workout recovery pre-workout energy and on-the-go sports nutrition for over 30 years and in over 90 countries. After careful selection of suppliers, each ingredient is tested for exceptional purity efficiency and composition. We adhere to the highest manufacturing standards so that you can realize your body's full potential. With regular exercise with weights. **Natural amino acids compared to whey protein