Muscle growth is dependent on the balance between protein synthesis and protein breakdown. The goal is to increase protein synthesis and decrease protein breakdown. Casein protein is considered to be a muscle-sparing protein. Since casein protein slowly enters the blood stream, it has a moderate impact on protein synthesis, but it has a powerful effect on reducing protein breakdown.
Current research has shown that in terms of overall muscle tissue increases and decreases of body fat, casein reigns superior. It’s been shown to accomplish this by increasing anabolism to a moderate extent, but more importantly, decreasing catabolism to a large degree. It seems that the reason behind this is simply because of its slow digestion and consequently, absorption rates. It provides a steady, slower paced release of amino acids into the blood stream.
We all know that we need to take whey protein after workouts–but that doesn’t mean that whey can’t be better. Slow-digesting casein protein was once believed to have no place around workout time, but newer research suggests otherwise. In fact, a study from Baylor University (Waco, Texas) reported that men who consumed a whey/casein blend of protein after workouts for 10 weeks gained significantly more muscle than the subjects who consumed a whey protein shake without casein. These subjects also lost more fat than the ones using only whey.
Current research is showing that the optimal protein for fat loss and muscle building is a mixture of whey and casein protein. Try Intek Evolution Protein or Optimum Health Pro Complete 40 for the ideal blend of whey and casein proteins.