What is Natto?

Natto is fermented soybeans providing the highest vitamin K2 content of any food for bone and cardiovascular health, complete protein with enhanced digestibility from fermentation, and unique nattokinase enzyme that supports circulation.

Key Highlights

  • Highest vitamin K2 source (870µg per 100g) directs calcium to bones and away from arteries
  • Nattokinase enzyme supports healthy blood clotting and circulation
  • Complete protein (17.7g per 100g) with improved digestibility from fermentation
  • Probiotic Bacillus subtilis supports gut health and vitamin production

Natto Nutrition Facts

Nutrition values per 50 g (50g)

Nutrient Amount % Daily Value*
Calories 106 -
Total Fat 0g 0%
Saturated Fat 0g 0%
Cholesterol mg 0%
Sodium mg 0%
Total Carbohydrates 7.1g 3%
Dietary Fiber 2.5g 9%
Sugars 0g -
Protein 8.9g 18%
Vitamins
Vitamin K 435µg 363%
Minerals
Iron 3.9mg 22%
Magnesium 57mg 14%
Calcium 109mg 11%

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Health Benefits of Natto

Highest vitamin K2 source (870µg per 100g) directs calcium to bones and away from arteries

Highest vitamin K2 source (870µg per 100g) directs calcium to bones and away from arteries

Nattokinase enzyme supports healthy blood clotting and circulation

Nattokinase enzyme supports healthy blood clotting and circulation

Complete protein (17.7g per 100g) with improved digestibility from fermentation

Complete protein (17.7g per 100g) with improved digestibility from fermentation

Probiotic Bacillus subtilis supports gut health and vitamin production

Probiotic Bacillus subtilis supports gut health and vitamin production

Natto for Your Health Goals

Discover how Natto can support your specific nutrition and health goals:

How to Select & Store Natto

🏠 Storage Tips

  • Store unopened natto in refrigerator for up to 3 months or freezer for 6 months
  • Once opened, consume within 3-5 days
  • Freeze individual portions for convenience

Best Ways to Eat Natto

Quick Recipe Ideas

  • Eat natto straight from container with soy sauce, mustard, and rice (traditional)
  • Mix into fried rice or scrambled eggs to mask texture and strong flavor
  • Blend into miso soup or add to hot dishes at end of cooking
  • Start with small amounts (1 tbsp) and increase gradually to adapt to flavor

Track Natto in Your Diet

Use Nutrivio to log Natto and see how it fits your daily nutrition goals. Get personalized recommendations based on your health profile.