NOW BerryDophilus is a combination of probiotic bacterial strains designed to support gastrointestinal health and healthy immune system function. In addition, healthy intestinal flora also helps to create a favorable environment for the absorption of nutrients. FOS is included in this product to assist healthy growth of acidophilus and bifidus organisms. BerryDophilus can be used by both adults and children. Because it is sweetened with Xylitol, chewable BerryDophilus won't harm teeth and it tastes great.