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. L Carnitine Benefits: Enhance Your Weight Loss Journey with This Power Supplement Sova Health Amazon.com: KAT Melendez OVARSITOL Women's Hormone Balance Supplement Myo Inositol + Magnesium + Acetyl L Carnitine + Chromium 60 Capsules : Health & Household There's a reason L carnitine keeps showing up in PCOS research Because PCOS is closely tied to insulin resistance, inflammation, and metabolic dysfunctionand L carnitine plays a role in energy metabolism and fat utilization.