In this article, types of chewing gum are analyzed, their chemical composition is studied, and classification criteria according to the Commodity Nomenclature of Foreign Economic Activity are developed and recommended for customs practice. It was established that the amount of vitamins in the studied samples of chewing products is less than the regulatory requirements, and the amount of vitamins in some samples is more than the norm, i. e. 2.5 times more, and harmful dyes such as E171, E170, E903 were also detected more than normal1.