JD.COM's L-carnitine coffee is real. L-carnitine coffee is a kind of coffee with L-carnitine as the main component. L-carnitine is a common health care ingredient, which can promote fat metabolism and improve body energy. However, it should be noted that L-carnitine is not a panacea for losing weight, and its function needs to be combined with reasonable diet and proper exercise to achieve better results. When buying L-carnitine coffee, you need to choose regular channels to buy, and try to choose products produced by well-known brands and qualified manufacturers.