Functional foods are foods that have additional health benefits beyond basic nutrition. These foods typically contain bioactive compounds or ingredients that have been scientifically proven to have a positive impact on health and well-being. Some examples of functional foods include probiotic yogurt, fortified juices, and omega-3 enriched eggs. Research in this area aims to understand the mechanisms by which these foods work, as well as to develop new functional foods that can improve various aspects of health, such as gut health, cardiovascular health, and cognitive function.