What is Pro & Pre-Biotic Support? Our Pro & Pre-Biotic Support Formula contains 30 Billion probiotic beneficial bacteria as Lactobacillus Acidophilus & Bifidobacteria Bifidum. In addition we have included the prebiotic Fructooligosaccharides (FOS). FOS can be thought of as the ‘food’ for the beneficial bacteria. What Do Pro & Pre-Biotic Support Do? May help to support a healthy digestive & immune system. Our tablets are enteric coated so that they bypass the acid environment of the stomach & release the contents in the intestines where they are absorbed & utilised.