Prebiotic and probiotic food products. Selection of food products and supplements containing probiotic cultures and prebiotic sugars. Probiotics are live micro-organisms which may help maintain a healthy intestinal flora. Probiotic products usually contain species of Lactobacillus and Bifidobacterium bacteria, both of which are normal inhabitants of the human digestive system. Prebiotics are non-digestible food ingredients which may be beneficial to the colon by selectively stimulating the growth and/or activity of probiotic bacteria in the colon. They are principally oligosaccharides.