PROBLEM TO BE SOLVED: To provide a composition capable of exhibiting remarkably osteogenesis promoting effect, and also utilizable as a food and drink product.SOLUTION: There are provided an osteogenesis promotor comprising a component (A) of an ascorbic acid derivative and a component (B) of sorbitol and/or its derivative; an osteogenesis promoting composition containing the osteogenesis promotor; and a food and drink product containing the osteogenesis promoter or the osteogenesis promoting composition.