It is intended to provide an osteogenesis promoter capable of promotingosteogenesis by promoting the differentiation of osteoblasts, and foods,drinks, drugs or feeds for promoting osteogenesis. Namely, an osteogenesispromoter capable of promoting osteogenesis by promoting the differentiation ofosteoblasts which comprises, as the active ingredient, lactoperoxidase and/ora digestion product obtained by digesting lactoperoxidase with a protease suchas trypsin； and foods, drinks, drugs or feeds for promoting osteogenesiscontaining lactoperoxidase and/or its digestion product.
