https://en.wikipedia.org/wiki/Natt%C5%8D
Supposed to taste quite bad for Westerners.
https://en.wikipedia.org/wiki/Natt%C5%8D
Supposed to taste quite bad for Westerners.
I (who grew up in rural IL) really enjoyed the taste and the smell. The consistency took some getting used to.
I rely on aged cheese to get my bacteria byproducts (esp. Vitamin K2).
The safest methods simply marinate tofu in fermented amaranth; the tofu itself isn't aged. But there's many approaches to it with and without questionable safety practices. I'm not sure comparisons to blue cheese or koji-fermented products are appropriate.
Natto ... I'm not such a fan.
Natto literally has the smell and slimy, sticky texture of, well, semen. It’s easy to wonder whether someone left a bunch of used tissues out or if they simply forgot to toss out their used natto package.
Interestingly, natto is one of the few foods high in a substance called spermadine. Look it up. Supposedly contributes to longevity and supplements exist.