Lysine

18/Description

About

Lysine is an amino acid (building block of protein). Unlike some other amino acids, the human body cannot make lysine; therefore it must be eaten in the diet. Sources of lysine include meat, fish, dairy, eggs, and some plants such as soy and other legumes.

Lysine is taken by mouth or applied directly to the skin for preventing and treating cold sores (caused by the virus called herpes simplex labialis).

Lysine is taken by mouth to improve athletic performance and for improving symptoms of schizophrenia. Lysine is also used to reduce symptoms of canker sores, and for diabetes, high triglyceride levels in the blood, muscle strength, stress, and a metabolic condition called metabolic alkalosis.

Lysine is applied to the skin for bed sores.

How it works

Lysine seems to prevent the herpes virus from growing.

Effectiveness

Possibly Effective
Cold sores (herpes simplex labialis)

Research suggests that lysine seems to reduce cold sores when taken by mouth and also when applied as a cream to the skin. Applying a specific product containing lysine, zinc oxide and 14 other ingredients (Super Lysine Plus +) seems to help reduce cold sores faster. However, some research suggests that lysine does not reduce the severity or recurrence of cold sores.

Concerns

Possibly safe

Lysine is POSSIBLY SAFE for most people when taken by mouth at recommended doses for up to one year, or when applied to the skin short-term. It can cause side effects such as stomach pain and diarrhea.

18/Warnings

Warnings

Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking lysine if you arepregnantorbreast feeding. Stay on the safe side and avoid use.Are there any interactions with medications?

Kidney disease: There is one report of kidney disease linked with taking lysine supplements. If you have a kidney disease, check with your healthcare provider before taking lysine.

Osteoporosis: Using Lysine with calcium supplements might increase calcium absorption.

Intolerance to lysinuric protein: Lysine supplementation might cause diarrhea and stomach cramps in children who are intolerant to lysinuric protein.

Interactions

Always consult with your doctor.
Moderate
Calcium supplements

Lysine can increase how much calcium the body absorbs. Taking calcium along with lysine can increase the amount of calcium in the body. Avoid taking large amounts of calcium and lysine at the same time.

Minor
Gastrointestinal agents (5-HT4 agonist)

Lysine might inhibit the effects of some gastrointestinal agents including prucalopride and tegaserod.

The information provided on this page is for reference purposes and is not meant to be used as a medical advice, diagnosis or treatment. Always consult with a medical professional. The content on this page has been provided with thanks by RxList.com