Medically reviewed by Aviv Joshua, MS, RDN Key Takeaways L-carnitine can help with weight loss, especially when combined with a low-calorie diet and exercise.It may support heart health by lowering ...

Some of these supplement names are getting out of hand. Protein powder? Easy to understand. Creatine? A little tougher, but whatever. And now L-carnitine? It sounds like something straight out of high ...