Consumption of food preservatives in moderation generally has no effect on the human body, but excessive consumption of preservatives can lead to abnormal functioning of the digestive tract.

Food preservatives are artificial chemical compounds that inhibit the growth and reproduction of microorganisms and the oxidation of food. Common ingredients in food preservatives are nitrite, sulfur dioxide, benzoic acid and other ingredients. Overconsumption of nitrite may cause poisoning, and overconsumption of sulfur dioxide and benzoic acid may damage human lung tissue and affect the balance of acid and alkali in the human body.

Often seasonings, puffed food, etc. contain a certain amount of food preservatives, moderate consumption of the general will not have an impact on the human body, but if a one-time excessive intake will not only lead to abnormal digestive tract function, but also affect the absorption of nutrients, and even cause poisoning.