This document discusses functional foods and nutraceuticals. It defines functional foods as foods that provide additional health benefits beyond basic nutrition. Cereals, legumes, vegetables, fruits, and probiotics are described as examples of functional foods. Cereals provide fiber, vitamins, minerals and antioxidants that can help prevent cancer, heart disease and other conditions. Legumes contain proteins, fibers and phytochemicals like isoflavones and saponins that may lower cholesterol and blood glucose. Vegetables and fruits are rich in antioxidants, vitamins and minerals that promote health. Probiotics in foods like yogurt contain beneficial bacteria and may help lower blood pressure and reduce risk of obesity and other diseases.