The more you eat, the greater the harm of monosodium glutamate to human health. Especially for pregnant women, infants and patients with kidney disease, hypertension and heart disease, regular consumption of monosodium glutamate is even more harmful. Scientific research has found that long-term consumption of monosodium glutamate will reduce the normal resistance of human body and reduce the absorption of vitamins, thus causing damage to the central nervous system, bones, bone marrow and genetic system of human body. Especially after high temperature treatment, such as frying, smoking or cooking for a long time, monosodium glutamate is more harmful to human body and even induces cancer.