Functional foods are foods that provide health benefits beyond basic nutrition. They contain bioactive compounds, such as vitamins, minerals, and antioxidants, which can help improve overall health and reduce the risk of certain diseases. Examples include oats, which can lower cholesterol, and yogurt, which contains probiotics that support gut health. These foods are often fortified with additional nutrients or ingredients to enhance their health benefits. For instance, orange juice may be enriched with calcium for better bone health. By incorporating functional foods into a balanced diet, individuals can support their well-being and promote a healthier lifestyle.