L Carnitine Benefits: Enhance Your Weight Loss Journey with This Power Supplement Sova Health Understanding the Benefits of L Carnitine for PCOS Management Role of Oxidative Stress and Carnitine in PCOS Patients IntechOpen L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy.