L-Lysine an essential amino acid as an answer to a variety of Health issues or for general well being. Lysine supplemental sources. Amino acid L-lysine certainly will be one of the answers to various health problems. The article contains information on L-lysine in relation to healthy body. Deficiency of l-lysine may cause various negative consequences and health associations even with children’s body development. When the natural intake of the amino acid l-lysine is insufficient from daily food intakes, it needs to be replenished by form of delivering it into human body by taking a quality dietary supplements.