The principal component of living organisms is protein, which is composed of around 20 amino acids. Some of these amino acids are nonessential amino acids, which are synthesized inside the body, and some of these amino acids are essential amino acids, which should be supplemented to the body from an outside source.
     
  Lysine is one of the essential amino acids required in comparably large amounts by living organisms. Lysine is the first limiting amino acid in swine feed formulations and the second limiting amino acid in poultry feed formulations. Most feedstuffs, such as grains and vegetables, are deficient in lysine.
     
 

If formulations deficient in lysine are not supplemented to the required levels, then the efficiency of the protein is strictly limited. Approximately 75 - 86% of the lysine in cereal grains is generally considered as available to the animal. In contrast, research has determined that CJ lysine is 100% available to the animal.