Problem to be solved. To provide a bone formation promoter that can prevent osteoporosis and a fracture, can reduce the risk of them, and can improve the symptoms of osteoporosis after the development of it. Solution. [1] A bone formation promoter having component (A): 6-acyl-2-O-α-D-glucosyl-L-ascorbic acid and component (B): sorbit and/or a derivative thereof. [2] The bone formation promoter described in [1], preventing and/or improving osteoporosis. [3] A bone formation promoting composition having the bone formation promoter described in [1] or [2]. [4] Food and drink having the bone formation promoter described in [1] or [2], or the bone formation promoting composition described in [3].

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