Beverly Nutrition Amino Acid Formula Mass 500 from Beverly Nutrition Amino Acids For Positive Nitrogen Retention And Lean Mass! These are natural occuring sources of proteins which have been partially digested to make them more readily assimilable for human nutrition. The partial digestion splits the large protein molecules into small groups of amino acids called peptides. The amino acids are now called peptide bonded. There are many ways to make a protein hydrolysate including acids and caustic treatment. However, for human nutrition Beverly has chosen the preferred method of using naturally occurring enzymes since they mimic the human digestive process and do not degrade the amino acids as do acids and/or caustics. MASS 500 By far the most superior quality peptide bonded amino tablet on the market. This very unique product is derived from casein, treated with pancreatic enzymes. Whereupon Mass is quickly absorbed, food bulk proteins serve as natural inhibitors of rapid absorption. Mass balance of protein is exceptional, and to reach that balance we have added combinations of free form amino acids to increase the efficiency level of some of the aminos. Unlike other companies, we do not resort to putting protein powders in tablet form and calling them hydrolysates.