Generation of acetylcarnitine from l carnitine occurs via carnitine Download Scientific Diagram Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get Acetyl L carnitine physical chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Molecular Psychiatry Frontiers Carnitine Traffic in Cells. Link With Cancer Carnitine vs Acetyl Carnitine: What Quality Differences Do They Have? If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.