BIOLOGICAL ACTIVITY OF NATURAL ANTIOXIDANTS IN MODERN FOOD SUPPLEMENTS AND THEIR MECHANISMS OF INFLUENCE ON THE IMMUNE SYSTEM

Abstract

This article examines the biological activity of natural antioxidants contained in modern food supplements and explores their mechanisms of influence on the human immune system. As oxidative stress weakens immune responses and contributes to various chronic conditions, the inclusion of natural antioxidants in dietary supplements has gained increasing scientific and medical attention. The study reviews the main classes of antioxidant compounds—vitamins, polyphenols, carotenoids, and flavonoids—and analyzes their biochemical pathways in immune modulation. The findings indicate that natural antioxidants enhance immune cell function, reduce inflammation, and protect the body from oxidative damage. The paper emphasizes the importance of using food supplements based on natural compounds to improve immune health and maintain physiological homeostasis.