Gold Standard 100% Casein by Optimum Nutrition is a specially formulated protein for those seeking nutritional support during rest periods or between meals. This slow-digesting micellar casein provides a gradual and sustained release of essential amino acids, including 4.9 g of BCAAs per serving, aiding muscle recovery. Each container contains 1.8 kg and is available in a variety of flavors, including chocolate, vanilla, and strawberry. It is ideal for mixing with water, milk, or another preferred beverage, providing a versatile option for those with an active lifestyle. It is recommended to store it in a cool, dry place, protected from direct sunlight. Optimum Nutrition manufactures this product in Ireland, ensuring high quality.