Available in a range of serving sizes and flavours, ON Casein has 24g of protein and nearly 5g of BCAAs per serve as well as low levels of sugar and is less than 120g of calories. Ideally, ON Casein is used between meals and before bed. Casein is a slower digesting and absorbing protein meaning you will get protein around the clock and delivers BCAAs to help your muscles continue to recover even hours after exercise.