MSG is a food additive that serves to enhance the freshness of flavor. In general, eating cola with a small amount of MSG may cause excitement, thirst and other reactions in addition to changes in taste. In addition, MSG contains some chemical components that can react with some of the substances in cola and cause a series of uncomfortable symptoms. 1. excitement: cola contains substances such as caffeine, which, together with glutamic acid and monosodium glutamate in MSG, may lead to refreshment and excitement, and if consumed in large amounts, may stimulate the central nervous system and cause symptoms such as rapid heartbeat and mental trance. 2. 2, thirst: the carbonic acid in cola combined with some of the sodium ions in MSG can, to a certain extent, affect the concentration of saliva in the mouth, thereby accelerating the body’s thirst; 3, impaired absorption of calcium: for patients who drink cola with MSG for a long time, the influence of phosphoric acid in cola can easily combine with calcium ions after reaching the body, which reduces the body’s absorption of calcium and to a certain extent affects calcium 4. Monosodium glutamate syndrome: If the human body overconsumes cola with MSG, it may cause monosodium glutamate syndrome, and such patients may experience a series of sweating, headache, pressure on the face, flushing of the body or face, and more serious patients may even experience chest pain, swelling of the throat, palpitations and shortness of breath; 5. For couples who are preparing for pregnancy, or women who have already conceived, if they often drink a lot of cola with MSG, it may have a certain degree of adverse effects on the sperm, eggs and fetus.