Lysine

Individuals who might benefit from testing their lysine levels include vegetarians and vegans, as lysine is more abundant in animal products. People with protein malabsorption issues, athletes requiring higher protein intake, and those experiencing symptoms like fatigue, hair loss, or slow wound healing could also benefit.

• Fatigue and lack of energy
• Poor muscle growth or muscle wasting
• Hair loss
• Slow wound healing
• Frequent infections
• Mood changes, such as irritability or depression

Lysine is found in high amounts in meats, poultry, and fish. Dairy products and eggs are also rich sources. For those on plant-based diets, lysine can be obtained from legumes like beans and lentils, soy products, nuts, and seeds, though in smaller quantities than animal sources.

Lysine supplementation can aid in muscle repair and growth, support immune system function, and improve calcium absorption, benefiting bone health. It’s also used for managing herpes simplex infections due to its antiviral properties. Lysine can be particularly beneficial for individuals with low dietary intake or increased needs.