The Academy of Sciences said that the accumulation of formaldehyde ingested by the human body to a certain concentration will directly lead to cancer. The World Health Organization has clearly classified formaldehyde as a teratogenic and carcinogenic substance. The "Food Sanitation Law of the People's Republic of China" has also explicitly stipulated that formaldehyde is prohibited as a food additive.
       The amount of food additives prescribed in the market is an additive that does not have any side effects or adverse effects on health. A reasonable amount of additives can prevent food spoilage, prolong the shelf life of food, and prevent food poisoning caused by microbial contamination. Cinnamaldehyde has been verified by many years of food safety tests, and it is a new ideal food additive with green safety and no side effects. Derived from green plant extracts, it is convenient and quick to make and has stable physicochemical activity. It is not affected by PH value. It has sterilization and disinfection function for acidic or alkaline substances, and is often used as a fresh-keeping preservative. At present, several large food companies such as France and South Korea have used cinnamaldehyde as an additive in food, and the market feedback is good.
       The special stable ingredients contained in cinnamaldehyde are also widely used in food, and the application in food is also suitable for the research and development of oral products, such as chewing gum and toothpaste.

As a food mildew inhibitor, cinnamaldehyde is non-toxic or low toxic to human body. Because cinnamaldehyde has the function of preservation, corrosion and mildew prevention, it is widely used in instant noodles, chewing gum, betel nut and other leisure foods and baked foods such as bread, cake and pastry. It can be used as a mildew inhibitor for food, a preservative for vegetables, and can also change the taste to stimulate consumption.

Cinnamaldehyde is also widely used in other fields. Chewing foods containing cinnamaldehyde can help memory and enhance brain power. This finding implies that functional foods to improve memory will be the development trend in the food industry. Therefore, the application prospect of cinnamaldehyde is very promising. China should also strengthen the application research of Cinnamaldehyde to make it better developed in China.