Is it safe to eat natto?
Quick Answer
Yes
Natto is safe to eat for most people. It is a traditional Japanese food made from fermented soybeans and is known for its strong flavor and sticky texture. However, as with any food, individual reactions may vary, especially for those with soy allergies.

What Is It?
Natto is a traditional Japanese food made from fermented soybeans. It is known for its strong flavor, sticky texture, and high nutritional value, including being rich in protein and vitamin K2.
Historical Context
Natto has been a staple in Japanese cuisine for over a thousand years. It is believed to have originated in the Edo period and has been consumed for its health benefits since then.
Why It Can Be Risky
While natto is generally safe to consume, there are a few potential risks to be aware of.
- allergies
- vitamin_k_overdose
Safe Method?
Natto is typically safe to eat as is, straight from the package. It is often served with rice, but can also be used in various dishes.
Safe Alternatives
If you’re allergic to soy or don’t like the taste of natto, other fermented foods like kimchi or sauerkraut can provide similar health benefits.
Storage Tips
Natto should be stored in the refrigerator and consumed by the use-by date on the package to ensure freshness and safety.