Gabatarwa: A cikin 'yan shekarun nan, shaharar abincin natto, abincin waken soya na gargajiyar Jafananci, ya ƙaru saboda yawan fa'idodin kiwon lafiya. Wannan abinci na musamman ba kawai dadi ba ne amma har ma da gina jiki mai wuce yarda. A cikin wannan rubutun, za mu bincika dalilin da yasa ...
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