”L-carnitine is an amino acid (a building block for proteins) that is naturally produced in the body. Carnitine involved in lipid metabolism, L-carnitine
helps the body produce energy. It is important for heart and brain function, muscle movement, and many other body processes.
- Serious kidney disease.
- Most research suggests that taking L-carnitine by mouth or intravenously (by IV) canimprove red blood cell counts during hemodialysis.
- L-carnitine deficiency: The FDA has approved L-carnitine for treating L-carnitinedeficiency caused by certain genetic diseases.
- Chest pain (angina):Taking L-carnitine seems to reduce chest pain and improve exercise ability inpeople who have chest pain but not blocked arteries.
- Heart failure:Taking L-carnitine appears to improve symptoms of heart failure.
- Male infertility:Most research shows that taking L-carnitine, alone or in combination with acetyl- L-carnitine, increases sperm count and sperm movement in men with fertility problems.
- Inflammation of the heart (myocarditis):Taking L-carnitine by mouth seems to reduce the risk of death from myocarditis.
- High thyroid hormone levels (hyperthyroidism). Taking L-carnitine seems to improve symptoms such as rapid or pounding heartbeat, nervousness, and weakness in people with high thyroid hormone levels.