Speaking of L-carnitine, I believe many people are still unfamiliar with it, so here is a detailed explanation of what L-carnitine is. Strictly speaking, L-carnitine is a kind of ubiquitous "substance", just like the carotene in carrots and the apple elements in apples. L-carnitine is also contained in our daily diet, such as meat products. L-carnitine is an amino acid that helps convert fat into energy, while many stores in Taobao Mall sell processed health weight loss products containing L-carnitine. These are two different concepts.