Often called the “fat-burning shuttle” of your cells, L-Carnitine is a nutrient that helps ferry fat into mitochondria to be burned for energy. This comprehensive guide breaks down what L-Carnitine is and explores its science-backed benefits – from aiding weight management and enhancing athletic performance to supporting brain health and heart health. Learn about the different types of L-Carnitine (like Acetyl-L-Carnitine for the brain and L-Carnitine L-Tartrate for workouts), the top food sources and supplement tips, who benefits most from it (and who might not need it), and how to use it effectively for your goals. If you’re a nutrition coach or someone aiming to optimize your diet and supplements, get ready to see how L-Carnitine could fit into your plan and boost your results.