Lysine is one of the essential amino acids. This means that although the body needs lysine to make proteins, it cannot manufacture its own lysine. The body must get the lysine it needs from sources like meat, fish, dairy, eggs, and plants like soy and other legumes.
Lysine is used orally (by mouth):
Lysine has also been used to:
The use of lysine to prevent or treat HSV infections such as cold sores has mixed results. There is limited evidence to support its use in this condition and other above-mentioned uses.
Your health care provider may have recommended this product for other conditions. Contact a health care provider if you have questions.
Lysine is likely safe when used at recommended doses (<3000mg/day) for up to 12 months. If you are unsure about the dose you are currently taking, please consult with your health care practitioner. Side effects may include cramping, stomach pain, and diarrhea. Rarely, it can cause kidney damage.
Lysine may increase absorption of calcium and decrease the loss of calcium in urine. To avoid calcium toxicity, check with your health care provider before using lysine if you are taking calcium supplements.
Use of lysine during pregnancy and breast-feeding is not recommended for purposes other than lysine deficiency. Consult a health care practitioner if you are considering taking lysine while pregnant or breast-feeding.
Do not use lysine if you:
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.
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