Health Benefits And Uses Of L-Lysine

Support For General Health

L-Lysine Background and Benefits

L-lysine is an essential amino acid for humans, meaning that the body can’t synthesize it. It must therefore be obtained in the diet, typically in the form of proteins that contain lysine. The Food and Agricultural Organization has established nutritional requirements for l-lysine, which generally decrease with age. For example, the minimum requirement for l-lysine is 103 milligrams per kilogram (mg/kg) of body weight for infants no older than four months. The minimum requirement of l-lysine for adults is 12 mg/kg.

The best dietary source of l-lysine is typically animal protein, especially red meat. Eggs and fatty fish such as cod and sardines are also good sources. Vegetable sources of lysine include legumes such as beans and peas. Foods are generally considered to have sufficient lysine if they have at least 51 mg lysine per gram of protein.

As an essential amino acid, l-lysine serves performs many functions. It is required for the biosynthesis of acetyl-CoA, which is an essential enzyme in many biochemical reactions. L-lysine is also used to make allysine, which is component of collagen and elastin. Dietary supplements containing l-lysine are often used by people whose diets may be deficient in this amino acid. They are also used by many bodybuilders to improve athletic performance.

Uses of L-Lysine

L-lysine supplements are primarily used to maintain overall health, since it is essential for human nutrition. It may also be used by many people with cold sores, including oral and topical applications.

Stress relief

A study indicates that L-lysine may help relieve stress and frustration, especially for women. This study used wheat containing additional l-lysine.

Blood sugar level management

L-lysine may help support the body’s natural ability to manage and regulate blood sugar levels.

Nutritional health

L-lysine is especially important to help support the body’s natural ability to manage and manufacture antibodies, enzymes and hormones. It is also essential for building muscle protein and absorbing calcium.

L-Lysine has numerous health benefits for everyday energy and stress management. This is why we included it in our Natural Energy dietary supplement.

Signs You May Need L-Lysine

Strict vegetarians are the people most likely to suffer from a deficiency of l-lysine, especially if cereal grains comprise the majority of their diet. Signs of an l-lysine deficiency primarily include a compromised immune system, loss of appetite and subsequent weight loss. 

Additional signs of this deficiency include fatigue, nausea, bloodshot eyes and reproductive disorders. People with low l-lysine levels may also have low calcium levels and problems related to the poor metabolism of fatty acids.

Synonyms and Similar Forms of L-Lysine

L-lysine HCL, l-lysine, l lysine, lysine


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