L-Lysine: an essential amino acid with multiple benefits

L-lysine is an essential amino acid found in most proteins and tissues in our body. Unlike the non-essential amino acids that our body is capable of producing itself, we have to obtain L-lysine from our diet or supplements.

In this article, we'll explore the benefits of L-lysine, its origin and its use as a dietary supplement.

Origin and sources of L-Lysine

L-lysine takes its name from the Greek word 'lysis', meaning 'to dissolve', in reference to its role in protein synthesis. It was discovered in 1889 by the German biochemist Ferdinand Ach, who first isolated it from casein, a protein found in milk.

L-lysine can be found in a variety of foods such as meat, fish, dairy products and pulses. However, L-lysine has limited bioavailability in plant-based foods, making it an amino acid that is often deficient in vegetarians and vegans.

The benefits of L-Lysine

L-lysine plays a crucial role in many of our body's functions, from building proteins to regulating the immune system. Here are some of its most important benefits:

• Boosts the immune system: L-lysine stimulates the production of antibodies and T lymphocytes, helping to strengthen our immune system and fight infection.
• Wound healing: L-lysine is reputed to accelerate wound healing by increasing the production of collagenthe key protein in the skin's healing process.
• Prevention and treatment of herpes: several studies have shown that L-lysine can help prevent and treat herpes outbreaks by limiting replication of the virus.
• Improved cognitive function: L-lysine can increase the production of neurotransmitters such as serotonin, helping to improve mood and reduce stress and anxiety.
• Prevention of bone loss: in combination with calcium, L-lysine can help prevent bone loss and maintain healthy bones.

Use as a food supplement

L-lysine is often used as a dietary supplement for its many health benefits. It is available in various forms, including tablets, capsules and even powders.

The recommended dose of L-lysine is 1000 to 1500 mg per day for adults, but this may vary according to individual needs. It is advisable to consult a health professional before taking L-lysine supplements.

Precautions and side effects

In general, L-lysine is considered safe and well tolerated. However, side effects such as nausea, abdominal pain and diarrhoea have been reported by some people taking high doses of L-lysine. It is therefore advisable to stick to the recommended doses and not exceed 3000 mg per day.

It's also important to note that L-lysine can interact with certain medicines and food supplements, so it's essential to consult a healthcare professional before taking it.

Scientific sources in French :

– "L-lysine and calcium can prevent bone loss in postmenopausal women with osteoporosis".
– "Lysine as a prophylactic agent in the treatment of recurrent herpes simplex labialis".
– "Effects of L-lysine and iron amino acid chelate on different parameters of stress and health status in highly stressed workers".

Conclusion:

L-lysine is an essential amino acid with numerous health benefits. As a dietary supplement, it can be beneficial for boosting our immune system, promoting wound healing, reducing stress and preventing bone loss. It is important to follow the recommended doses and consult a health professional before incorporating L-lysine into our routine. Let's not forget that the key to good health is a balanced and varied diet that provides all the nutrients our body needs.