The greatest benefit of casein protein powder is that it's digested very slowly, ensuring a steady flow of amino acids over a long period of up to 7 hours. This is very unusual for a protein powder, as we generally look for fast-digesting protein supplements for use after our workout. In this case, casein serves a very different purpose.
Muscle is not only built after a workout but during the night as you sleep. It turns out that while you sleep your body produces muscle-building hormones including the human growth hormone HGH. Taking casein protein powder before bed allows for a slow and steady amino acid flow throughout the night, which helps keep your body in an anabolic state for muscle repair and growth.
Casein protein powder has several benefits, including: