Colors are divided into edible and inedible categories. Edible coloring can be consumed by human beings, while inedible coloring will do more harm to human body.

Nowadays, the commonly used food coloring includes two categories: natural coloring and synthetic coloring. Natural pigments come from natural substances, mainly extracted from plant tissues, but also include some pigments from animals and microorganisms. Synthetic pigments are organic pigments made by artificial chemical synthesis methods, mainly made from aniline dyes separated from coal tar.

Numerous studies have reported that almost all synthetic colors do not provide nutrients to the human body, and some synthetic colors can even be hazardous to human health.

Expanded Information:

Synthetic coloring is not only widely used in the food industry, but also in the food industry. p>Synthetic coloring is not only widely used in the food industry, but also in the cosmetics industry, which also has its shade. Cosmetics have become a necessity in people's daily lives to add fragrance and beauty, but some substances in cosmetics often bring some damage to the health of beauty lovers, which includes coloring.

Cosmetics is a daily use of chemical industrial products, itself contains a variety of chemical substances. According to statistics, there are about 7,000 kinds of chemical substances in the world as raw materials for cosmetics, which are used in different proportions to form a variety of cosmetics, and most of them contain coloring.

According to a statistic, the most dangerous cosmetic raw materials that cause skin dysfunction are fragrances, followed by pigments and antiseptics, which are known as the "three evils" of cosmetics. The proportion of harm caused by fragrances accounted for 50.6%, color accounted for 43.9%, preservatives accounted for 4.9%.

Reference: