PROBLEM TO BE SOLVED: To provide a natto composition in which a standard product for prevailing natto having the taste pre-adjusted for the taste differing east asia can be eaten as it is without mixing, after opening, with separately packed seasoning.SOLUTION: Provided is a natto composition made by Bacillus natto incubated by mixing and standing a fermented natto and a steamed soybean in the presence of a fermentation seasoning made by fermentation germ other than Bacillus natto. A natto composition in which, as the fermentation seasoning, tobanjan or black bean sauce is preferably used.EFFECT: This makes it possible to provide a prevailing product even having an economic superiority to people who has an interest as a health food but has a different dietary habit.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】食味の異なる東アジア向けに予め食味を整えた納豆普及用の標準品を、開封後に別包装した調味料と混合することなく、そのまま食用に供することが可能な納豆組成物の提供。【解決手段】納豆菌以外の発酵菌により作成された発酵調味料の存在下に、発酵した納豆と蒸した大豆を混合して静置して培養させた納豆菌により作成される納豆組成物。前記発酵調味料として、豆板醤又は豆鼓醤を使用することが好ましい納豆組成物。【効果】食習慣は異なるが健康食品として関心を持つ人へ、経済的にも優位性のある普及品の提供を可能とする。【選択図】なし