Overview: Lysine is found in foods that contain protein and is also available over the counter as a dietary supplement. It is used for many reasons, but its benefits are not well defined. Lysine is ...

There are various health benefits of lysine and lysine supplements, including improving cold sores, reducing blood pressure, and preventing the symptoms of lysine deficiency. Lysine is one of the ...

Lysine is an amino acid that is found mostly in animal products. Though more research is needed, it may help reduce anxiety, prevent cold sores, improve calcium absorption, and promote wound healing.