PROBLEM TO BE SOLVED: To provide a food composition containing a low caloric functional saccharide raw material as an active ingredient and exhibiting useful physiological effects in human and animals other than the human, a method for producing the same, a useful pharmaceutical, etc.SOLUTION: This food composition capable of expecting an anti-dental caries effect and/or a bifidobacteria propagation effect is provided simply and efficiently by producing the food composition containing 1% or more of planteose, and also, the pharmaceutical exhibiting the anti-dental caries effect and/or bifidobacteria propagation effect is provided by incorporating the planteose as an active ingredient.