In the process of food processing, certain additives need to be added, such as artificial colors, flavors, sweeteners and preservatives. These substances are mostly synthetic chemical substances, and eating within the normal range has little effect on humans. If you eat too much, it is harmful to human health. Flavors include natural and synthetic flavors, and they are also one of the food additives.
The use of synthetic flavors must be implemented in accordance with the sanitary standards prescribed by the state, otherwise, it will be harmful to human health. Fragrance esters, aldehydes, alcohols, ketones, phenols, etc., some varieties can cause chronic poisoning, even teratogenic, carcinogenic, therefore, it is not suitable to use flavors in the family.