I wonder how many people out there have natto as a breakfast snack. (The first link is a very kind description of this at first challenging food.) Here is a better one. Please be careful where you try natto for the first time, as it might trigger the gag reflex in some unprepared gourmets. You might want to start with Natto Maki in your local sushi shop... take your time. Once you acquire the taste, you will be addicted for life though, and maybe even have Natto for breakfast, as I just did.