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Lysine Amino Acid

LYSINE

Lysine, or L-lysine, is an essential amino acid. That means it is necessary for human health, but the body can’t manufacture it. You have to get lysine from food or supplements. Amino acids like lysine are the building blocks of protein. Lysine is important for proper growth, and it plays an essential role in the production of carnitine, a nutrient responsible for converting fatty acids into energy and helping to lower cholesterol. Lysine appears to help the body absorb calcium, and it plays an important role in the formation of collagen, a substance important for bones and connective tissues including skin, tendon, and cartilage.

Ensures adequate calcium absorption and maintains a proper nitrogen balance in adults; helps form collagen (which makes up cartilage and connective tissue); aids in the production of antibodies which have the ability to fight cold sores and herpes outbreaks; lowers high serum triglyceride levels

The nutritional requirement per day, in milligrams of lysine per kilogram of body weight, is: infants (3–4 months) 103, children (2 years) 64, older children (10–12 years) 60 to 44, adults 12. For a 70 kg adult, 12 milligrams of lysine per kilogram of body weight is 0.84 grams of lysine. Note that recommendations were subsequently revised upwards, e.g. 30 mg/kg for adults.

Good sources of lysine are high-protein foods such as eggs, meat (specifically red meat, lamb, pork, and poultry), soy, beans and peas, cheese (particularly Parmesan), and certain fish (such as cod and sardines).

How to Take It

 

Pediatric

Speak with your pediatrician regarding appropriate dosages. Dose is usually adjusted based on body weight.

Adult

For adults ages 13 and older: Recommendations are 12 mg/kg/day.

An example of a dose often used during an active herpes flare up is 3,000 – 9,000 mg/day in divided doses for a short period of time. To prevent recurrences, many people take 1,000 mg daily. However, dosing depends on many different factors and you should talk to your doctor to determine the right dose for your particular situation.

 

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