Raffinose Pentahydrate is an oligosaccharide composed of galactoe, fructose,and glucose,widely distributed in most plants. Raffinose can pass undigested through the stomach and the intestine in human body. It can be used in Low-Calorie food. It is an ideal nutrition source and generation factor of beneficial bacteria such as Bacillus bifidus. It can improve the defecation function and digestion function and promote the body absorption of calcium, thereby enhance the human immunity and take effect on disease precaution and anti-aging. Raffinose can also be used for skin moisturing.