Nutritional and Hormonal Regulation of Citrate and Carnitine Acylcarnitine Transporters: Two Mitochondrial Carriers Involved in Fatty Acid Metabolism The mechanism by which long chain fatty acids enter the mitochondria. Download Scientific Diagram Short Note On Carnitine Shuttle: Fatty acids are oxidized in mitochondria, and synthesized in the cytoplasm. Long chain fatty acids must form an active intermediate, fatty acyl CoA, before being oxidized inside mitochondria. Catherine How carnitine transporters boost reproductive health L Carnitine helps shuttle fatty acids into the mitochondria (the power plants of your cells) where they can be burned for energy. It's often used in fat metabolism and energy support formulas. Carnitine transport and fatty acid oxidation ScienceDirect