Optimum Nutrition is well known for their pure and beneficial sports nutrition products. Their 100% Casein blend is no exception to the rule. When used with a comprehensive nutrition plan and a quality workout routine, Casein is best utilized to gain mass and fuel muscles in order to prevent breakdown over the long term. This milk protein breaks down in the digestive system slower than most other proteins and therefore continues to provide the amino acid building blocks over a longer timeframe, most consistently overnight in order to fuel the muscle building process and aid in recovery. This 4 pound tub from Optimum Nutrition also has a benefit of buying in bulk, and will therefore most likely be cheaper per serving as compared to smaller and more overpriced opponents brands. This product works wonders and does exactly what it claims to do, fuels muscle building and maintenance of body mass.

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