[Problem] The purpose of the present invention is to provide a technique which suppresses degradation in the activity of nattokinase with time in an oral composition that comprises nattokinase, and which imparts excellent storage stability to the oral composition. [Solution] In an oral composition which comprises an extract from black ginger, hesperidin, transglycosylated hesperidin, a-linolenic acid, and/or rutin as well as nattokinase, degradation in the activity of the nattokinase due to storage can be suppressed and excellent storage stability can be provided.

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