The harm of nitrite to human body?

summary

Nitrite is often heard in daily life, and most people know that this chemical composition is particularly harmful to the body. Many people know that adding nitrite to sauce and bittern products can play a role in anti-corrosion and color protection, and the appearance and taste are similar to salt, but it is mainly used in industry and construction industry, if nitrite is contained in food, The impact on the health of the body is particularly large, the harm of nitrite to the human body? Now let me tell you something.

The harm of nitrite to human body?

Nitrite is a kind of permitted food additive. As long as it is controlled within the safe range, it will not cause harm to human body. However, long-term consumption of a large number of foods containing nitrite has a potential cancer risk, because nitrite can be transformed into nitrosamine, which has a strong carcinogenic effect.

Nitrite can enter the fetus through the placenta. The fetus within six months is particularly sensitive to nitrite, which has teratogenic effect on the fetus. The relative risk of brain cancer in children under five years old is increased, which is directly related to the amount of nitrite ingested by the mother through food.

Nitrite may also cause poisoning directly, because nitrite can oxidize the normal oxygen carrying methemoglobin in the blood to methemoglobin, thus losing the oxygen carrying capacity and causing tissue hypoxia, and can also cause vasodilation and lower blood pressure. So as to cause acute poisoning.

matters needing attention

At ordinary times, we should pay attention to eat more food that can inhibit the formation of nitrosamines. For example, allicin in garlic can inhibit the nitrate reducing bacteria in the stomach and significantly reduce the nitrite in the stomach. Tea polyphenols in tea can block the formation of nitrosamines. Foods rich in vitamin C can prevent the formation of nitrosamines in the stomach and inhibit the mutation of nitrosamines.