What role do flavonoids play in nutrition?

Flavonoids play a significant role in nutrition primarily due to their antioxidant properties. These compounds, found in a variety of fruits, vegetables, teas, and wine, are known to combat oxidative stress in the body by neutralizing free radicals. This antioxidant activity can help reduce inflammation and lower the risk of chronic diseases such as heart disease, cancer, and neurodegenerative disorders.

Additionally, flavonoids may contribute to cardiovascular health by enhancing the function of blood vessels, improving circulation, and regulating blood pressure. Their bioactive compounds also support the immune system and promote overall health and well-being.

The other options do not accurately reflect the primary role of flavonoids. While they are not a source of protein, essential fatty acids, or dietary fiber, their contribution as antioxidants is crucial in promoting health and preventing disease.