L-carnitine, also known as L-carnitine, L-carnitine, and vitamin Bt. Research on L-carnitine first began in 1905 when two Russian scientists, Gulewitsch and Krimberg, discovered a new substance in meat extracts that was thought to be a vitamin nutrient and named it vitamin Bt. Subsequently, in In 1927, Tomita and Sendju clarified the chemical structure of L-carnitine. L-carnitine is similar to choline, similar to amino acids, and was found to be synthesized by the organism itself. L-carnitine helps in weight loss One of the most prominent physiological functions of L-carnitine is to increase the rate of fat metabolism. We all know that obesity is due to a relative excess of energy in the body, and that excess energy is not consumed and converted into fat for storage. Fat contains fatty acids, and the body provides energy through the oxidation of fatty acids, which need to be transported to the mitochondria in order to be oxidized. The long-chain fatty acids in the body are difficult to pass this barrier, and L-carnitine can play the role of a “transporter”, which can carry the long-chain fatty acids to the mitochondria little by little for β-oxidation, and turn them into the energy needed by the body. From this perspective, as a carrier of fatty acids, L-carnitine increases the rate of fat oxidation and reduces glycogen consumption, which helps in weight loss. L-carnitine is needed for weight loss with exercise The role of L-carnitine is to help fat metabolism, but does not have an active role in fat consumption, if you want to lose weight simply by consuming L-carnitine, I’m afraid you will be disappointed. For example, some people say “L-carnitine, so you can sleep and lose weight! This is a very unreliable claim. This is because the energy consumed during sleep is less and there is no need to consume a lot of fat for energy, so it is difficult to guarantee the effect of weight loss by supplementing L-carnitine at this time, and it may not even be effective at all. Simply put, if the amount of exercise (energy consumption) is not large, fat consumption is not much, supplementing L-carnitine alone will not increase the fat oxidation function, so it does not help to lose weight. Only when the amount of exercise is high, the energy consumption per unit time is high, and the fat oxidation energy supply is high, then the situation of “relative deficiency” of L-carnitine synthesis may occur. In this case, additional L-carnitine supplementation increases the transport of fatty acids into the mitochondria, which obviously facilitates the oxidation and consumption of more fat. Therefore, we say that L-carnitine weight loss needs to be combined with exercise. L-carnitine weight loss precautions (1) L-carnitine weight loss is applicable to those who usually exercise. (2) L-carnitine generally works 1 hour to 5 hours after taking it, so at least 1 hour after consumption with aerobic exercise, the fat loss effect is relatively more obvious. (3) Try not to take L-carnitine before going to bed, basically not fat loss effect, but may also affect sleep. (4) L-carnitine try to choose the higher purity.