PROBLEM TO BE SOLVED: To provide means that can promote myogenesis without exercise to be done, without activation of AMPK, or even with activation of AMPK.;SOLUTION: The present invention provides a myogenesis promoting composition that contains at least one extract selected from willow extract and olive extract, or a myogenesis promoting composition that contains oleuropein represented by the following formula. There is also provided a pharmaceutical composition or a food composition containing the composition.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT
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