Infrared Spectrum Distortion Phenomenon During the Crystallization Process of L Carnitine and a Quantitative Study Based on Machine Learning Organic Process Research & Development New study offers hope that natural L carnitine supplements may one day replace toxic statin drugs Optimal Health Insider Optimal Health Systems L carnitine is an amino acid that is produced in your body that helps the body turn fat into energy. Carnitine is found in nearly all cells of the body and researchers have Assessing the antioxidant and metabolic effect of an alpha lipoic acid and acetyl L carnitine nutraceutical ScienceDirect