In 1911, we took "Oryza- nin" (which means oryza-NIN) as the trademark, and Mr. Qi Shan Zhi from the sales department of Sanxing Pharmaceutical Co., Ltd., which produced and sold vitamin products, answered this question. "Vitamins are a kind of nutrients. Although the required amount is very small, they are organic compounds that are indispensable for the metabolism and maintenance of life and cannot be synthesized in the body. As for the names A, B, C, etc., they are decided according to the year in which they were discovered. " -it turned out to be just the order of discovery. "But it's not that simple. The earliest vitamin was discovered by Dr. Baitaro Suzuki in 191. Because this substance was extracted from chaff, it was called chaff when it was published, but now it is called vitamin. " Mr. Qishan said. How does gluten become a vitamin? It turned out that in the second year after Dr. Suzuki discovered gluten, the Polish Vonk also discovered the same substance, and he named it vitamin, which means amine necessary for life. In 1915, American biochemist Macalem discovered that there are two kinds of vitamins, one is soluble in oil and the other is soluble in water. He called the fat-soluble one group A and the water-soluble one group B.. Glutenin is water-soluble, so it is classified into vitamin B group. There are * * * substances such as ~1312 in the same family, which are named according to the order of discovery. Glutenin was first discovered, and of course it became vitamin. Vitamins include A, B, C, D, E, K and other ethnic groups. Originally, there were F, G and H groups, but it was later proved that there was a mistake, so they were cancelled. Because vitamins are trace substances, it is difficult for people to analyze their components very accurately in the early days. Later, I learned that vitamin F is actually an essential fatty acid linoleic acid, while vitamin G and vitamin H are one of the B vitamins. In recent years, vitamins named according to their functions have also appeared, such as vitamin K, which can promote blood coagulation. K is the prefix of the word coagulation in German.