What is L Carnitine? L Carnitine is a naturally occurring amino acid derivative that the human body can synthesize itself. It is mainly found in red meat and dairy products. [1] Core Benefits of Now Foods Acetyl L Carnitine 500 mg 200 vegetarian capsules Miss Lamonique L Carnitine: What Is It, When To Take It, and More Knowledge Bioway Organic L Carnitine (60 tabs) L Carnitine Biotech What Foods Are High in Carnitine? Deficiency Side Effects L Carnitine contents in foods (modified from [70]). Download Scientific Diagram