Natto (納豆) is a traditional and debatably popular food made of fermented soybeans. It has a strong smell and flavor, as well as a slimy and sticky texture. Most people who are not accustomed to eat it since childhood are unable to eat more than a spoonful due to it’s taste. People who like it, however, eat it for breakfast or after supper.
Natto has to be stirred before eating, and can be eaten as is, or with added flavor such as mustard or soy sauce. It is especially popular in the Hokkaido, Tohoku, and Kansai regions.
Because natto is relatively cheap and very nutritious, it is popular among poorer people and university students. Just like for miso soup, there are various health benefits to eat natto, such as a decreased chance in heart attack and strokes, which is one of the reasons that some people consume it even if they dislike its taste.