Phytonutrients and antioxidants are natural compounds found in plants that your body uses to protect cells and support health. You might hear these terms when reading about colorful vegetables, fruits, nuts, or herbs—and that's because these foods are where most people encounter them. This guide explains what these compounds actually are, where they come from, and how they work in your body, so you can understand the science behind nutrition information you encounter.
The articles here answer practical questions: What makes one food's nutrients different from another's? How do antioxidants function at a basic level? Which everyday foods contain these compounds, and why does variety matter? You'll learn how to think about plant foods in a way that goes beyond just calories or vitamins, building a clearer picture of what nutrition research is actually talking about.