Turning fat into fuel is L-carnitine's speciality. This amino acid derivative helps shuttle fatty acids into the mitochondria, where they are converted to cellular energy — a process central to heart, muscle and exercise performance.

Thorne provides L-carnitine as the well-studied L-carnitine L-tartrate in a clean, gluten-free capsule, making it a practical choice for athletes, active adults and anyone supporting healthy energy production and post-exercise recovery.