NutraBio Micellar Casein has a slow absorption rate into the bloodstream, providing a steady stream of amino acids to muscle cells for upwards of 7 hours. Such a slow release ensures positive nitrogen retention in muscles for much longer periods compared to whey protein. Casein is best utilized at night or in combination with whey protein isolate after workouts to help provide sustained amino acid delivery during the two most crucial times of muscle growth: during sleep and post-training.
