The present invention provides a method for producing a Euglena bacilli fermentation product, a Euglena bacilli fermentation material raw material, and a Euglena bacilli fermentation product. A mixing step of mixing Euglena alga bodies and cereals to prepare a mixture of Euglena alga bodies and cereals, and addition of koji molds to add koji molds to the mixture of euglena alga bodies and cereals to obtain a koji mold fermentation material raw material By the method characterized by performing a process and the fermentation process which ferments the said koji mold fermentation product raw material, the koji mold fermentation product of Euglena can be obtained. [Selection] Figure 1
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