L-carnitine is effective in patients with fatty liver, especially for obese fatty liver. Because L-carnitine has weight loss properties, it can transport fat into the mitochondria of liver cells for oxidative metabolism. This is a transport enzyme that can digest the fat. L-carnitine can also release energy to maintain a longer period of exercise, which is conducive to the consumption of excessive lipids in the body, and can also relieve fatigue and slow down aging. Therefore, the efficacy of L-carnitine is relatively more, especially suitable for obese patients with fatty liver, usually can eat L-carnitine properly. Fatty liver is a relatively common metabolic liver disease, usually must control the diet, appropriate physical exercise is very necessary.