To answer you with my example, I have lost weight for a long time. I learned a lot from exposure to diet pills. What I used to eat had great side effects. Say it when you are thin, and don't say it when you spend money. My body still can't stand it. Later, I watched L-carnitine recommended by Hunan Satellite TV, but I was afraid to try it because I was sensitive to diet pills. Finally, I saw a friend around me using L-carnitine, which also had an effect without side effects. I decided to use L-carnitine. I'm cautious. I must know before buying. So before using L-carnitine, I looked up a lot of information about L-carnitine and got to know something about it. After using L-carnitine, it was found that the effect was good, and it dropped to the ideal weight (haha), and no side effects were found (I always wanted to drink water, probably because the metabolism was accelerated and water played an important role in the metabolic process). L-carnitine itself is a substance existing in human body (which may be the cause of safety and no side effects), and its quantity directly affects the speed of fat metabolism. L-carnitine does not simply reduce fat, but changes the metabolism of human body (the reason why it is not easy to rebound compared with the advantages of traditional weight loss methods). Now that I have stopped using it, I feel that my metabolism is obviously faster than before. Now my diet is the same as before, and there is no rebound. But don't overeat. ) Seeing many friends asking which brand of L-carnitine is good, I won't say what brand I use, so as not to be accused of advertising. It is suggested that friends who want to buy L-carnitine must look for the national food health word approved by the US Food and Drug Administration. Recommend a good L-carnitine blog to teach you how to choose L-carnitine brand. How to identify the authenticity of L-carnitine? How to choose L-carnitine that suits you? How to choose honest Taobao sellers? L-carnitine has many brands and is also very miscellaneous. It is suggested that friends who want to buy L-carnitine must look for the drug word. However, it should be noted that there are too many fake and shoddy goods and brands in this product, but only a few L-carnitine brands have the words "National Food Health".