Natto, along with uni, and konnyaku, make up the top three Japanese foods that scare the bejesus out of people. None of these foods actually tastes bad. I think they are scary due to their strange textures. I have read countless websites and books that say these foods are an “acquired taste”. Acquired taste is a cheap way of saying people don’t like them. And if you do like them, you need to explain yourself.
You wanna read more, go to → "The Gaijin’s Guide to Natto."