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 can be incredibly helpful for women with PCOS who struggle with fatigue, insulin resistance, and weight loss resistance. Being all fancy for a second, its role is to help transport fatty Frontiers The crucial role and mechanism of insulin resistance in metabolic disease L carnitine tartrate supplementation in the fight against infectious disease What Is Carnitine and Why Is It Important? The Amino Company