Your body uses amino acids to make proteins, but it can't produce its own essential amino acids. You have to get them from diet or supplements. Lysine is thought to help the body produce infection-fighting antibodies, enzymes, hormones, and body tissues. Lysine is found in high-protein foods like meat, nuts, beans, eggs, and soy. Lysine supplements are also known as "L-lysine. Some lysine supplements contain a combination of lysine and L-arginine , another essential amino acid.
This article will discuss some of the uses of lysine supplements and topical lysine. It will also discuss dosage, side effects, and some things you should look for when buying lysine supplements and ointments. Lysine supplements are used to treat a wide range of conditions, including:.
Proponents say lysine supplements can boost the immune system. They are also used to aid in muscle repair and improve muscle strength. So far, there is not enough clinical evidence to support most of these uses. A few studies suggest that lysine supplements can be used to treat certain health conditions. Here's a look at some key study findings. Some studies suggest lysine supplements may reduce the severity and duration of cold sore outbreaks.
This may be because lysine keeps herpes simplex, the virus that causes cold sores, from reproducing. A review, however, concluded there was not enough evidence to support the use of lysine supplements for preventing cold sore outbreaks. In , researchers reviewed a number of trials of different interventions for preventing cold sores. They also did not find any evidence that lysine was effective for this.
Other research has explored topical lysine as a treatment for herpes simplex infections. However, the study didn't have an untreated control group to compare the results to. Left untreated, cold sores may last up to 21 days. More research is needed, but a few studies have found that a combination of l-lysine and l-arginine may help reduce anxiety. Researchers think one of the reasons this might work is because l-lysine and l-arginine help lower cortisol levels.
Cortisol is your body's primary stress hormone. Preliminary research suggests that lysine supplements may help the body absorb calcium. This might help protect against bone loss.
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. Useful for those looking to improve their recovery time after they exercise, lysine also has many other potential perks for the body and the mind….
While often used in sport nutrition products to support muscle growth and repair, l-lysine is also thought to aid several other processes in the body. When combined with l-arginine another essential amino acid , l-lysine is thought to be an effective treatment for anxiety. As previously mentioned, lysine cannot be made by the body, so must be sourced from either food or supplements.
High-protein foods often contain l-lysine. If you follow a plant-based diet, this will include things like:. L-lysine tablets come in different strengths which are very easy to incorporate into your daily routine.
When blood levels dropped below this level, cold sore breakouts increased 4. Though this study is promising, it did not state the amount of lysine or other ingredients used in the cream 1. Furthermore, not all studies show that lysine is effective in reducing cold sore occurrence or duration. One review found insufficient evidence to recommend it for treating cold sores 5.
Summary Some studies show that lysine can reduce the duration and frequency of cold sores, but the evidence is inconsistent. Lysine may play a role in reducing anxiety. One study found that it blocked receptors involved in stress response. Researchers observed that rats given lysine had reduced rates of stress-induced loose bowel movements 6.
A one-week study in 50 healthy people noticed that supplementing with 2. Similarly, adding 4. After three months, consuming the lysine-enriched flour also helped reduce cortisol levels in women 8. Though research is still in its early stages, lysine may have the potential to improve schizophrenia symptoms in combination with prescribed medication 9 , Summary Lysine may help reduce feelings of anxiety and reduce levels of the stress hormone cortisol in some people.
Early research indicates that it may even help improve symptoms in people with schizophrenia. Lysine may help your body hold on to calcium 11 , A study in 30 women, 15 healthy and 15 with osteoporosis, found that supplementing with calcium and lysine reduced the loss of calcium in the urine. The women given 3 grams of calcium alone had a progressive increase in calcium in their urine.
However, the women who also received mg of lysine lost less calcium through their urine Lysine appears to protect your bones and may also play a part in controlling whereto calcium is transported in your body. For example, it has been shown to prevent the buildup of calcium in blood vessels in rats.
This kind of buildup is a risk factor for heart disease Gaby AR. Natural remedies for Herpes simplex. Altern Med Rev. Oral lysine clonixinate in the acute treatment of migraine: a double-blind placebo-controlled study. Arq Neuropsiquiatr. Inhibition of histone lysine methylation enhances cancer-testis antigen expression in lung cancer cells: implications for adoptive immunotherapy of cancer. Cancer Res. Tfelf-Hansen P. The effectiveness of combined oral lysine acetylsalicylate and metoclopramide in the treatment of migraine attacks.
Comparison with placebo and oral sumatriptan. Funct Neurol. Lysine Amino acid K; L-lysine. Uses Herpes simplex virus HSV Some studies suggest that taking lysine on a regular basis may help prevent outbreaks of cold sores and genital herpes. Osteoporosis Lysine helps the body absorb calcium and reduces the amount of calcium that is lost in urine.
Athletic performance Athletes sometimes use lysine as a protein supplement. Dietary Sources Good sources of lysine include foods that are rich in protein, such as: Meat, specifically red meat, pork, and poultry Cheese, particularly parmesan Certain fish, such as cod and sardines Eggs Soybeans, particularly tofu, isolated soy protein, and defatted soybean flour Spirulina Fenugreek seed Brewer's yeast, beans and other legumes, and dairy products also contain lysine.
Available Forms Lysine is available in tablets, capsules, creams, and liquids, and is usually sold in the L-lysine form.
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