Does Natto Help with Sleep? Unpacking the Science
                                
                                
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                                    4 min read                                
                            
                                According to a 2025 review in the *Journal of Food Science*, there is a documented link between consuming fermented foods and experiencing better sleep. This growing body of evidence suggests that incorporating natto into your diet could positively influence your sleep patterns, though the mechanism is complex and multi-faceted.