The present invention relates to a synbiotic product composition comprising a blend or mixture of a prebiotic carbohydrate and a probiotic spore-forming Bacillus bacteria. Examples of prebiotic carbohydrates useful in synbiotic product include arabinoxylan, arabinoxylan oligosaccharides, xylose, soluble fiber dextrin, soluble corn fiber, and polydextrose. The present invention also relates to human foodstuffs and animal feed comprising such synbiotic products and methods of increasing the titer of spore-forming bacteria in the intestinal tracts of mammals by administration of synbiotic products.
