Food composition for improving cognitive function

Abstract

To provide a food composition which can safely be taken over a long period of time and is effective for improving a cognitive function of brain and Bacillus natto used for producing the food composition.SOLUTION: A food composition containing Natto as an active ingredient and improving a cognitive function is provided. In the food composition, Natto is fermented with Bacillus subtilis TTCC12 strain (accession number NITE P-03957). A production method of Natto includes a fermentation step for fermenting steamed soybeans with Bacillus natto. In the fermentation step, fermentation is performed at a temperature of 37°C or higher and 47°C or lower for 14 hours or longer, and the Bacillus natto is Bacillus subtilis TTCC12 strain. The Bacillus subtilis TTCC12 strain is provided.SELECTED DRAWING: None