The term “cellulose” refers to a linear polysaccharide consisting of a linear chain of several hundred to many thousands of (1 4) linked D-glucose units. Cellulose is an insoluble fibre. It is a major component of plant cell walls. Probiotics The term “probiotic” refers to live microorganisms which when present in an adequate amount in a host confers a health benefit to the host (such as a mammal subject). Probiotics are microorganisms, in particular, beneficial bacteria existing in the gastro- intestinal tract of mammals. The probiotics in the colon are of particular interest. Probiotics include lactic acid bacteria, Bifidobacteria, Bacteroidetes, Baciullus, Streptococcus, Escherichia, Enterococcus, Anaeropstipes, Bacillus, Odoribacter, Victivallis (phylum Lentisphaerae) and unclassified Lentisphaerae, unclassified Mariniiabiaceae and Anaerophaga (family Marinilabiaceae), Anaerophaga, Cerasicoccus, Roseburia, and/or Shigella species. The increase in certain probiotics increases butyrate production, acetate production, short chain fatty acid (SCFA), branched chain fatty acid (BCFA) or ammonia production. SCFA constitute the major bacterial end products formed from fermentation of indigestible foods components. Preferably, the composition of the invention increases production of SCFA. The importance of butyrate for host health is diverse. Butyrate is the main fuel for colonocytes and contributes to the conservation of the mucus barrier through the up- regulation of mucinencoding gene expression, assisting therefore, in maintaining a healthy epithelial layer in the colon. It has anti-inflammatory effects and induces apoptosis in in vitro cultured colon cancer cells and thus, might have anticarcinogenic effects. Low ratios of acetate to propionate have hypolipidemic effects on the host. Acetate stimulates the synthesis of lipids, while propionate counteracts de novo lipogenesis from acetate demonstrating the importance of the SCFA ratios. SCFA are essential to maintain a lower pH in the colon, which is a selective mechanism to favour the growth of beneficial bacteria over pathogens. Prebiotics The term “prebiotic” refers to something that is a nutrient for probiotics and/or its consumption results in changes in the composition and/or activity of the gastrointestinal