Abstract. Vitamins are of vital biological importance to all living organisms in nature. Therefore, the composition, structure, processes, functions and use of vitamins are important. This is because vitamins and the micro and macro compounds they contain are involved in the body's absorption and metabolism. To date, more than 30 types of such vitamins have been identified and studied. The largest group of such vitamins is B vitamins. Of the B vitamins, vitamin B1 contains several trace elements, such as C, N, and O. The micro and macro elements in vitamin B1 are involved in performing the necessary vital processes in the human body.