Many people have concerns about the safety of L-carnitine. In fact, there is absolutely no need to worry. The safety of using L-carnitine is much higher than that of most vitamins. L-carnitine is a very safe essential nutrient for human body. A large number of foods in nature contain carnitine, and a part of carnitine is synthesized in human body every day to meet the needs of human life activities. The following are authoritative reports and regulations related to countries around the world. In 1980s, carnitine was listed as a commodity abroad and included in the 22nd edition of the United States Pharmacopoeia. In 1984, we clearly know that L-carnitine is a very important nutrient. At the international nutrition conference held in Chicago from 65438 to 0985, vitamin BT was designated as "multifunctional nutrition". From 65438 to 0993, the expert committee of the US Food and Drug Administration (FDA) considered that vitamin BT(L- carnitine) was "recognized as safe and nontoxic". 1994 The German Ministry of Health stipulates that there is no need to set an upper limit for the use of L-carnitine. 1995, the International Association for the Promotion of Obesity and Health put L-carnitine and cold &; Fever was awarded the annual health contribution scientific research achievement award. From 65438 to 0996, the 16th National Technical Committee for Standardization of Food Additives allowed the use of L- carnitine in beverages, milk drinks, biscuits, solid drinks and milk powder. At present, 22 countries and regions in the world have allowed L-carnitine to be added to infant milk powder to prevent carnitine deficiency. Safety tests in various countries have proved that L-carnitine is safe. It is suitable for people with abdominal obesity, local and systemic obesity such as waist of bucket and elephant leg, postpartum abdominal bulge and need to lose weight quickly after a long time. People who lose weight by unhealthy methods (diet, western medicine, laxatives) lead to dull complexion and rough skin. Women who don't want to take diet pills and don't like sports have tried various painful methods to lose weight. Women who have long been constipated and have bad breath and are eager to lose weight easily have also used L-carnitine. I think if you want to buy good ones, just like me, follow everyone and buy those with good reputation. Answering your questions is always helpful to you. You can go to her space to see Q 1 19 879 2528, which exposes some fake brands and recommends many good brands on Taobao. I think friends who want to buy L-carnitine should go and have a look. [Who or under what circumstances is not suitable to take it 1, pregnant women: Because the fetus is growing in the mother's body, if you take Meiren tea at this time, the fetus will not get sufficient nutrition, resulting in the consequences of dysplasia. 2. Patients less than one month after surgery: After major surgery, wound healing needs a lot of fatty acids in the body. If you take beautiful tea to lose weight at this time, it will have an impact on wound healing. 3. Children: Because children are growing up and their hormones are unstable, they are not encouraged to lose weight. 4, menstrual women: Because beauty tea is cold, if taken during menstruation, it will cause poor blood flow and dysmenorrhea. 5. Precautions for lactating women 1. Taking L-carnitine will affect the quality of sleep and cause excitement, so try not to take L-carnitine before going to bed at night. Second, do not take a large amount of amino acids at the same time when taking Ximu L-carnitine milk tea, so as not to affect the absorption of L-carnitine. Third, patients with severe renal insufficiency and end-stage renal disease (ESRD) should use it with caution. L-carnitine is not recommended for patients 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 each month; If you take it in large quantities (5 grams per day for adults, except for AIDS patients), you may have diarrhea. Fourth, L-carnitine can lead to increased perspiration. Please pay attention to hydration when taking Ximu L-carnitine milk tea. Conducive to the elimination of fatty liver. The liver is an important metabolic organ of lipids and fats. In addition to eating too much fat and increasing fat mobilization, it will also lead to fatty liver. When the body lacks L-carnitine or methyl, it will cause obstacles to the oxidation of long-chain fatty acids, and it will also lead to excessive accumulation of liver fat and fatty liver. Increasing or supplementing L-carnitine intake can regulate fat metabolism, promote fat oxidation, and fundamentally eliminate excess or accumulated fat in the body or organs. At present, Switzerland, the United States, Japan and other countries all use L-carnitine to prevent fatty liver, and can also get rehabilitation by adding L-carnitine to eliminate excessive fat accumulated in the liver. L-carnitine supplementation can promote the activity of pyruvate dehydrogenase in cells, thus promoting the oxidation and utilization of glucose, which is beneficial to delaying fatigue during exercise. Excessive lactic acid production during exercise will increase the acidity of blood and tissue fluid, reduce the production of ATP and lead to fatigue. Supplementing L-carnitine can eliminate excessive lactic acid, improve exercise ability and promote the recovery of exercise fatigue. Ammonia is the product of protein degradation, and it is also the identification sign of exercise fatigue. Even a very low ammonia content will be very toxic. It is found that L-carnitine has a protective effect on ammonia toxicity, which can promote urea cycle and degrade ammonia into urea, thus eliminating ammonia toxicity. Appropriate supplementation of L-carnitine also has obvious effect on chronic fatigue syndrome. L-carnitine participates in many metabolic links, which plays an important role in improving human immunity, protecting the stability of cell membrane, improving exercise endurance and anti-fatigue surface. Correcting the deficiency of L-carnitine actively can promote the recovery of various metabolic disorders in patients with chronic fatigue syndrome, enhance the energy synthesis of the body, improve the maximum exercise endurance level and play an anti-fatigue role. It can also prevent and treat sub-health. The energy to delay the aging process is the greatest anti-aging force, and cells will be full of vitality only when they have enough energy. In the process of human aging, the weakening of cell energy is one of the reasons for accelerating aging. Appropriate supplementation of L-carnitine can delay the aging process. In addition, enough energy can protect cells. When the body is aging, the energy supply of cells is insufficient. Supplementing L-carnitine can not only provide enough energy, but also keep the immune system strong, thus avoiding the invasion of some diseases. L-carnitine, which is beneficial to the health of infants, is an essential nutrient for conditional infants and plays an important role in the metabolism of infants with fat as energy. Infants' L-carnitine synthesis ability is weak, and only 12% of adults, especially premature infants, must be supplemented with exogenous L-carnitine to meet the needs of the body. L-carnitine not only plays an important role in the process of energy production and fat metabolism, but also plays a certain role in some physiological processes of maintaining infant life and promoting infant development, such as ketone production and nitrogen metabolism. At present, 22 countries in the world have added L-carnitine to infant milk powder, and breast milk powder with L-carnitine has also been listed in China. The mechanism of treating hemorrhagic shock is not only the dysfunction of vasomotor function caused by endocrine disorder under stress, but also closely related to the increase of free radical content and cell damage caused by ischemia and hypoxia. L-carnitine has many pharmacological effects on hemorrhagic shock. Wistar rats were randomly divided into saline control group and L-carnitine treatment group. Each group 10 rabbits were intubated under general anesthesia with 3% pentobarbital sodium (1ml/kg). The changes of blood pressure, NO, MDA and SOD at 1 h, 2 h, 3 h and 4 h were detected. The experimental results showed that the average arterial pressure in the control group treated with 1 and normal saline recovered slowly and very low, while the average arterial pressure in the L-carnitine group was significantly higher than that in the control group. 2. The content of MDA in the control group increased gradually, and the content of MDA in the L-carnitine group was significantly lower than that in the control group. 3. The content of NO in the control group increased gradually, while the content of MDA in the L- carnitine group decreased obviously. 4. The content of SOD in the blood of the control group decreased gradually. Compared with the control group, the SOD activity in L-carnitine group increased significantly.

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