The main hazard of eating too much MSG is excessive sodium intake, which increases the risk of high blood pressure in the long run. MSG is a commonly used fresh-flavored condiment in cooking, and moderate consumption of MSG is beneficial to the human body. The glutamic acid in MSG can promote protein production, improve the taste of dishes and enhance appetite. Each 100 grams of monosodium glutamate contains 268 kilocalories of energy, 40.1 grams of protein, 26.5 grams of carbohydrates, 100 milligrams of calcium, 8160 milligrams of sodium and other nutrients. MSG eating too much will often be thirsty, because MSG contains sodium and not salty, it is easy to consume too much and do not notice, so unknowingly will consume a lot of sodium salt, resulting in water and sodium retention, in the long run, easy to lead to an increased risk of developing high blood pressure. For patients with renal, hepatic and cardiac insufficiency, it is especially important to limit the intake of MSG to avoid aggravating water and sodium retention. MSG is a widely used condiment and is beneficial to human health when consumed in moderation. However, excessive consumption of MSG may result in some adverse reactions, so it is advisable to put MSG into the cooking process in moderation.