Nowadays, to improve immune function by healthy food is a popular topic. What’s the different of functional food and healthy food? The objectives of this course are to introduce the functional food and healthy food in living organisms and the application in food science market. The course comprise the physiological function and process of nutritional supplements、functional foods、designers foods and pharmacy foods. Men women and children are different in nutritional requirements due to their distinct physiological structure. The functional foods for aged people emphasize the effect of anti-aging and building the immune system. Physiochemical which contain natural physiological active ingredients are more popular in western countries. The Chinese herb should play an important role for the future healthy food market. This course will illustrate their physical and chemical functions.