L-carnitine is an amino acid that can promote the conversion of fat into energy. Has no toxic or side effects on human body. It is especially suitable for people to do aerobic exercise to reduce fat. The effect is obvious. Different types of daily diets already contain 5-100 mg of L-carnitine. L-carnitine is produced in the liver and kidney of human body, and stored in muscle, brain and heart. L-carnitine is suitable for a variety of uses related to heart health: preventing heart disease and improving heart function of people with congestive heart problems. After a heart attack, minimize its damage, reduce the pain of colic and improve arrhythmia without affecting blood pressure. When high-density cholesterol or good cholesterol is increased, reduce the triglyceride and cholesterol levels in the blood. Note: L-carnitine is not recommended for people with liver or kidney diseases. If you plan to improve obesity metabolism and muscle capacity, it is generally recommended that you stop using it for one week after every month; If you take it in large quantities (5 grams a day for an adult, except AIDS patients), you may have diarrhea. It is mainly used in the following aspects: 1. Infant food: L-carnitine is a conditional essential nutrient for infants. At present, L-carnitine has been added to infant milk powder in 22 countries in the world, and breast-fed milk powder with L-carnitine has also been listed in China. Second, weight loss: L-carnitine can burn excess fat in the body as energy. He can lose weight, reduce the fat content in the body, and has the effect of losing weight. If L-carnitine is lacking in the body, it will cause fatty acid metabolism disorder, which will lead to two consequences. (1) causes insufficient energy supply to muscles, resulting in body fatigue and related heart diseases; (2) Lipid substances are accumulated in muscle fibers and liver, resulting in obesity, fatty liver and other diseases. Obese people who don't exercise enough often supplement L-carnitine and keep exercising, so they can consume fatty acids accumulated in the body and play a role in losing weight. Therefore, L-carnitine is an ideal slimming product without dieting, anorexia, fatigue and diarrhea. Third, athletes' food: L-carnitine is good for improving sports explosive power, anti-fatigue and enhancing sports endurance. Taking a certain amount of L-carnitine, athletes can get the best results when participating in endurance and intensity sports. Studies have confirmed that the concentration of free carnitine in human muscle tissue decreases by 20% after physical exercise, which can be improved by supplementing exogenous L-carnitine, thus promoting the oxidation of fatty acids in the body to generate energy and improving sports performance. L-carnitine has been widely used in sports health food abroad. Important nutritional supplements for human body: with the increase of age, the content of L-carnitine in the body is decreasing, and human beings need to supplement L-carnitine. Diabetic patients, patients with renal function, mental and manual workers, due to the large amount of waste discharged, the consumption of L-carnitine in the body is large, which easily leads to the lack of L-carnitine and needs long-term supplementation.