Also question is, can I buy natto at Whole Foods?
Actually, nattokinase has been sold for years as a medicinal supplement. You can find several brands of it in any Whole Foods. It comes in pill form.
Furthermore, how much does natto cost? Natto beans and Japanese culture
In Japan, the price of natto tends to be around 100 yen for 3 to 4 packs.
Keeping this in consideration, can I make my own natto?
Place beans in a large pot, fill with water and boil for 3-4 hours (until tender but not mushy). Drain the cooked beans and place in a sterilized pot. Dissolve one special spoonful of natto spores into 2 teaspoons of sterilized water. While the beans are still warm, pour the natto spore solution over the beans.
Is dried natto as good as fresh?
The Good Points and Health Benefits of the Dried Natto
It is generally said that Hoshi Natto contains 1.5 times the potassium, 1.8 times the iron, and twice the zinc that fresh Natto beans have.