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Health Information Library. Uses Lysine is an essential amino acid needed for growth and to help maintain nitrogen balance in the body. What Are Star Ratings?
This supplement has been used in connection with the following health conditions: Used for Why 3 Stars. Supplementing with lysine may reduce recurrences by suppressing the virus that causes sores. Taking lysine may speed healing and help prevent future outbreaks. Because shingles is caused by a herpes virus, some doctors believe that lysine could help, since it inhibits replication of herpes simplex, a related virus.
Where to Find It Brewer's yeast , legumes, dairy, fish, and meat all contain significant amounts of lysine. Possible Deficiencies Most people, including vegans vegetarians who also avoid dairy and eggs , consume adequate amounts of lysine. Interactions with Medicines As of the last update, we found no reported interactions between this supplement and medicines.
It is possible that unknown interactions exist. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist. The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects.
For details, refer to the manufacturers' package information as these are not covered in this table. Scientists have yet to confirm that lysine supplements help prevent osteoporosis in humans, though. A few studies suggest that lysine may help cold sores. It may also help anxiety and improve calcium absorption.
More research is needed to confirm these findings. Lysine supplements are probably safe for most people. Oral lysine can be taken for up to one year in appropriate doses. Topical lysine can also be used for up to a year. Side effects can include stomach pain and diarrhea. Certain people should avoid lysine supplements.
There is not enough evidence to know if it is safe for people who are pregnant or breastfeeding. People with kidney disease , lysinuric protein intolerance a condition in which the body can't use lysine and other amino acids , or osteoporosis should ask a doctor before taking lysine. Most people can get enough lysine by following a balanced diet containing high-protein foods.
There is no standard recommended dose for lysine as a supplement or for topical use. Different doses have been used in research. For cold sores, studies have used doses of mg daily or mg three times daily. Doses applied to the skin vary. If you want to use lysine supplements to treat or prevent a specific health problem, ask your doctor first. They can help you find the right dose and provide instructions for use.
The National Institutes of Health NIH recommends checking the supplement facts label before buying any dietary or herbal supplement, including lysine. This label provides important information about the amount of active ingredient per serving.
It should also include information about other ingredients. The NIH also recommends looking for a product that has been quality tested by an independent organization. Most supplements that have been quality tested will include these details in the product information. Quality testing organizations include:. A seal of approval from one of these organizations helps you know that the product was properly manufactured, contains the listed ingredients, and does not include harmful levels of contaminants.
It does not, however, guarantee the product's safety or effectiveness. Make sure to read the label before you purchase any supplement. Look for supplements that have been quality tested by a third party. Lysine is an important amino acid that can be found in high-protein foods like meat, nuts, beans, and eggs. It is also available as an oral supplement or topical ointment.
Some research suggests that lysine may be helpful for treating certain conditions, such as cold sores and anxiety. Before taking lysine, talk to your doctor about dosage and use. Some studies have shown that lysine has a small impact on glucose levels. Lysine is consumed naturally in meat beef, pork, poultry , cheese, certain fish, eggs, beans, legumes, and dairy products.
Most people get enough lysine in their diets, but those who do not may experience fatigue, nausea, dizziness, loss of appetite, agitation, bloodshot eyes, anemia, and reproductive challenges. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Medicinal uses of l-lysine: past and future.
Int J Res Pharm Sci. Mailoo VJ, Rampes S. Lysine for herpes simplex prophylaxis: a review of the evidence. Integr Med. Interventions for prevention of herpes simplex labialis cold sores on the lips. Cochrane Database Syst Re v. It can increase the absorption of calcium and this can affect the functioning of the organs.
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Search for: Search Button. L-lysine: The solution to the herpes virus? Table of Contents. Featured Post Herpes virus, even known as cold sores, is a tiny virus that affects a lot of people. It caused by …. Herpes cold sores is one of the most common and difficult health issues. Leave a Comment Cancel Comment Comment.
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