1. Infant food: It can be added to milk powder to improve the nutrition. 2. Weight loss: L-carnitine can burn the redundant adipose in our body, then transmit to energy, which can help us lose weight. 3. Athletes food: It is good for improve the explosive force and resist fatigue, which can enhance our sports ability. 4. Important nutritional supplement for human body: With the growth of our age, the content of L-carnitine in our body is decreasing, so we should supplement L-carnitine to maintain the health of our body.