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Discover how to make Natto Rolls, a flavorful sushi roll filled with fermented natto! This unique Japanese dish is packed with umami and offers a healthy, protein-rich twist on traditional sushi.

A start-up firm affiliated with Keio University developed a new food source made of a powdered form of a bacterium used for natto fermented soybeans. The bacterium can be mixed into bread and noodles ...