Are preservatives in food harmful to the human body?

Most foods contain preservatives. The preservative sodium benzoate must be added to soy sauce without exception, otherwise it will easily breed mold. The toxicity of sodium benzoate is very low. After many years of use, no harm has been found to human beings when added in the prescribed amount. The preservative often added to bread and soy products is calcium propionate or sodium propionate, which can ensure that the bread does not grow mold within a week. Potassium sorbate is often added to pickles, jams, condiments and drinks. This preservative is also non-toxic and harmless and can be used as a nutrient to participate in human metabolism. Therefore, food experts from various countries are relatively confident about it. Sulfites are traditionally used to preserve wine and other fruit wines, but the amount used at this time is very small and unlikely to cause harm to the human body. If the amount added is too high, there will be an obvious sulfur smell in the wine, making the product unpopular. .

Preservatives, food colorings, and flavors were definitely not invented by people in the 20th century. It has been used in the world for at least hundreds of years. It’s just that many unscrupulous manufacturers now use it too much and abuse it. If it is added in accordance with national standards, nothing will happen; if it is added beyond the standards, it will be harmful.

Therefore, on the one hand, we must pay attention to self-protection, and on the other hand, we should not talk about it. If there are no preservatives in the food, you should not eat shelf-stable food. It will start to go bad in 4 hours at room temperature! ! !