It is harmful to people's health. Because roast chicken and roast duck are coated with food additives such as preservatives, spices and pigments, these things are harmful to people's health.

Hazards of food additives:

I. Carcinogenesis

For example, some artificial sweeteners and pigments have been proved to be carcinogenic by animal experiments. For example, cream yellow can induce liver cancer in rats, and sweeteners insulin glargine and phenylurea can also cause animal tumors. In recent years, it has also been found that sodium nitrite reacts with amines in meat, fish and other foods to form nitroso compounds with strong carcinogenic effect.

Second, acute and chronic poisoning problems

Because the raw materials used to make additives are impure, some toxic compounds are polluted, causing acute and chronic poisoning. For example, the Morinaga milk powder incident in Japan used additives containing too much arsenic, resulting in 1000 baby poisoning. Butyl hydroxyanisole, as an antioxidant, can accumulate in the body and may cause potential harm to the body.

Third, the problem of transforming products.

After food additives are added to food, some transformation products will be produced in the body, such as nitrite will be transformed into nitrosamines in the body, which will have harmful effects on the human body.