No, of course. Let's talk about the past lives of monosodium glutamate first. In 1866, the German chemist Hausen extracted a substance with fiber from the decomposition of wheat protein and named it "sodium glutamate". In 198, Professor Ikeda Jumiao of Tokyo University in Japan extracted glutamic acid from kelp, and developed a condiment which could improve the freshness of dishes, and named it "the essence of taste". In 1923, Shanghai Tianchu MSG Factory established the first domestic production of MSG in China. At first, monosodium glutamate was not as cheap as it is now. When monosodium glutamate was first produced in China, the hydrolysis method was adopted. Wheat was used as raw material, and 4 tons of wheat could only produce 1 ton of monosodium glutamate. If the cost of monosodium glutamate has been so high, maybe everyone will not demonize monosodium glutamate? ) It was not until 1964 that the production of monosodium glutamate by fermentation was developed, which solved the problem of high cost. The main component of monosodium glutamate is sodium glutamate, and sodium glutamate (MSG) is a sodium salt of amino acid (glutamic acid). Sodium glutamate can decompose glutamic acid in the process of digestion, which is one of the amino acids needed by human body, and 96% of it can be absorbed by human body, forming protein in human tissues. Therefore, it can be seen that monosodium glutamate can be regarded as an extract of plants, rather than a "chemical substance" that everyone smells discolored. Moreover, after people eat monosodium glutamate, glutamic acid is formed under the action of gastric acid, which is the only amino acid participating in brain metabolism and can maintain and improve brain function. So, monosodium glutamate is a good thing! Why has it been so despised? After careful consideration, I finally got to the reason early! ! That is, China is a big foodie! China people love to take advantage of it, and they are willing to wear imitation clothes and use high-mercury whitening skin care products, but they can't be careless in eating this problem. A bowl of clear water with monosodium glutamate will turn "clear soup into chicken soup", which is incredible, crooked ways, and can't be eaten! There are also poisoned milk powder, waste oil and dry goods soaked in formalin for so many years. People are a little scared. No matter how fresh you are, I won't eat it, and my life is important ~ ~ But for monosodium glutamate, seriously, if you choose it, nothing will happen. MSG is not only an ideal umami seasoning, but also a good nutrient!