Is Natto Soy Free?

Avoid

Natto is a traditional Japanese food made by fermenting whole soybeans with Bacillus subtilis, resulting in a sticky, nutty-flavored product. It contains intact soy proteins and isoflavones, which are excluded on a soy-free diet due to their allergenic potential and biological activity. Consuming natto would compromise soy avoidance and increase the risk of adverse reactions in individuals with soy allergy or intolerance.

Natto and the Soy Free Diet

Natto is a traditional Japanese food made by fermenting whole soybeans with the bacterium Bacillus subtilis. This process results in a sticky, stringy texture and a distinct, nutty flavor. Rich in protein and probiotics, natto is valued for its potential health benefits. It is a source of vitamins such as K2 and minerals including calcium and iron, and is often eaten as a breakfast item in Japan, typically served with rice.

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Frequently Asked Questions

Foods That Commonly Contain Natto

Japanese breakfast dishes
sushi
salads
rice bowls

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