Carnitine Vegan Diets Sources Supplements & Deficiency L carnitine: Science Backed Benefits, Risks, and More 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 New Health Culprit Carnitine Found in Red Meat WSJ Did you know L Carnitine is also in food, mainly from red meat. However, if you're mainly eating white meat, fruits and veggies, you might not be getting enough. Swipe left to see Should I Take Acetyl L Carnitine or L Carnitine HealthAid