The document discusses functional foods, which provide extra health benefits beyond basic nutrition due to their bioactive compounds, such as antioxidants and omega-3 fatty acids. It differentiates functional foods from nutraceuticals, explaining that functional foods are natural and consumed in their whole form, while nutraceuticals may be fortified and consumed as supplements. The text also highlights the health impacts of functional foods on reducing chronic diseases, improving digestion, and boosting immunity, alongside practical tips for incorporating them into one's diet.