Carnitine is a nutritional supplement among which L-carnitine, acetyl-L-carnitine, and propionyl-l-carnitine are available over-the-counter as dietary supplements. Carnitine is often promoted as an aid for weight loss, to improve exercise performance, and to enhance a sense of well-being.  Why carnitine? L-carnitine, acetyl-l-carnitine, and propionyl-l-carnitine are available in nutraceutical dietary supplement pills or powders. It is […]