Bests & Worsts Reviews from Amazon

L-lysine is an amino acid that our bodies can't manufacture but that is essential for human health. Food and/or supplements are our only sources of this amino acid. L-lysine is important for proper growth and it supports other amino acids in converting fatty acids into energy and helping to lower cholesterol. Studies indicate that lysine helps the body absorb calcium and it plays an important role in the ongoing health of bones and connective tissues including skin, tendons, and cartilage. While most people get sufficient l-lysine from their daily diet, there are some people, such as athletes, vegans, and burn patients, who can benefit from supplementation of lysine. The following are some of the potential benefits: - It is thought to improve athletic performance in endurance athletes - It may reduce bone loss associated with osteoporosis - It can help treat the symptoms of angina when accompanied by vitamin C - By preserving calcium, it benefits your teeth, cartilage, and bones - It is thought to help improve mental well-being and ward off fatigue - Regular supplementation of lysine is believed to prevent outbreaks of herpes virus such as cold sores - There may be potential for weight management benefits Daily supplementation of lysine in too high of levels (several thousand milligrams) can lead to gallstone formation or the development of kidney disorders. This amino acid can also react with certain antibiotics to produce toxicity. At 500mg, this lysine supplement from NOW is a good low-dose option. I've been happy with the NOW Natural Products line. They've been producing quality nutritional supplements for 40 years and remain a top-selling US brand.