Where to get Natto Bacteria in North America

You can use commercially made natto as the source of the Bacillus Natto bacteria. You should be able to find frozen packages of natto at Japanese or other Asian grocery stores for that purpose as freezing does not affect their effectiveness.

by Kazuo Shiroki Created on August 30, 1998 Last revised on July 22, 2008 English Translation by Graycastle Enterprises & Katsuyo Yamazaki.