Fruits and vegetables are rich in various antioxidants, including vitamin C, beta-carotene, and flavonoids. These compounds play a crucial role in protecting the body from oxidative stress caused by free radicals, which can lead to cellular damage and chronic diseases. For instance, fruits like berries and citrus are high in vitamin C and flavonoids, while vegetables like carrots and sweet potatoes provide beta-carotene. Incorporating a variety of colorful fruits and vegetables into the diet maximizes antioxidant intake, contributing to overall health and decreasing disease risk.