A small amount of L-carnitine coffee is safe to use, and frequent use is not recommended. The main components of L-carnitine coffee are L-carnitine, black coffee and dietary fiber. , has a certain weight loss effect. But it is not reliable to lose weight simply by drinking L-carnitine coffee. Reasonable exercise and healthy diet should be combined. However, long-term excessive drinking of L-carnitine coffee may cause arrhythmia, insomnia, dizziness and other symptoms, so long-term or excessive drinking should be avoided. It is recommended to consult a professional dietitian and combine your own situation to achieve scientific and healthy weight loss.