Can you have too much natto?
                                
                                
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                                    4 min read                                
                            
                                A 2020 study from the National Cancer Center found that high consumption of natto lowers mortality risk, prompting many to wonder: can you have too much natto? While a nutritional powerhouse, excessive intake can lead to potential health complications, especially concerning its high vitamin K2 content and anticoagulant effects.