L Carnitine vs Acetyl L Carnitine: Key Differences L Carnitine Benefits, Uses, Dosage, Foods, Side Effects Dr. Axe Acetyl L carnitine physical chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Molecular Psychiatry Meet L Carnitine a naturally occurring amino acid that plays a key role in helping the body convert fat into usable energy. It works by transporting fatty acids into your cells to Difference between L Carnitine and L Carnitine L Tartrate