Beneficial properties of Lysine

Lysine is an essential amino acid.

It cannot be manufactured in the body and must be obtained from dietary sources such as cheese, eggs, fish, lima beans, milk, potatoes, red meat, soy products, and yeast.

As lysine is so readily available, lysine deficiency is rare but do occur. Deficiency symptoms include the following:

  1. blood-shot eyes
  2. hair loss
  3. an inability to concentrate
  4. irritability
  5. lack of energy
  6. poor appetite
  7. reproductive disorders
  8. retarded growth and weight loss.


  • helps boost immune response
  • is needed for hormone production
  • helps with growth and maintenance of bones in both children and adults.
  • promotes the formation of both collagen and muscle protein, may help speed recovery from surgery and sports injuries.

Anti-viral applications:

used to boost the immune response against the herpes virus. Is an over-the-counter supplement taken to decrease the frequency and severity of cold sore outbreaks (caused by the herpes simplex virus-2).

Lysine helps prevent the body’s absorption of the amino acid arginine, which the herpes virus must have in order to replicate.

Studies have shown that taking supplemental L-lysine in combination with vitamin C and flavonoids can effectively fight and/or prevent herpes outbreaks.

Lysine supplements have also been used to prevent eruptions of shingles caused by the herpes varicella zoster virus.

  • Individuals with herpes outbreaks usually take 500 to 1000 milligrams each day in capsules, although those with herpes generally take as much as 6 grams each day to control their symptoms.
  • Doses of more than 10 grams each day may cause stomach cramps or diarrhea.
  • In very large doses (10 to 30 grams a day), lysine increases the toxicity of aminoglycoside antibiotics, such as gentamicin, neomycin, and streptomycin. (2011). Lysine. Retrieved February 27, 2011 from


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