Superfood From Japan

What is Natto?

Natto is a fermented soybean product known for its rich umami flavor and exceptional health benefits. Packed with probiotics, vitamin K2, and plant-based protein, it supports gut health and overall wellness. From whole beans to convenient powder and flavorful furikake, Yamasan brings you the authentic taste of natto straight from Kyoto. Perfect for rice bowls, soups, and everyday meals.

Natto Superfood Set – Gut Health from Beans to Seasoning

$14.35 USD

Flavor
Natto Fermented Soybean 70g(2.4oz) - YAMASAN KYOTOUJI

$14.35 USD

$14.35 USD

Dried Natto- Easy to Rehydrate

Step1

Place 10g of dry natto from the bag into a bowl.

*The powder in the bag is freeze-dried Bacillus natto kinase. Please use it together.

Step2

Pour water to make the natto just covered.

*If you rehydrate 10g of dried natto, it becomes 1 pack (40g) of natto sold commercially in Japan.

Step3

Cover with plastic wrap and place in the refrigerator for 3-4 hours.

Enjoy!

Remove from the refrigerator, stir and enjoy.

*After rehydration, store in the refrigerator and consume within the same day.

Natto Series

Chef's Recipes

Natto Fermented Soybean 70g(2.4oz) - YAMASAN KYOTOUJI

Superfood Dry Natto Fermented Soybean 70g(2.4oz)

$14.35 USD

Natto Fermented Soybean Powder 50g(1.76oz) - YAMASAN KYOTOUJI

Superfood Natto Fermented Soybean Powder 50g(1.76oz)

$17.44 USD

Natto Furikake Seasoning 40g(1.4oz) - YAMASAN KYOTOUJI

Superfood Natto Furikake Seasoning 40g(1.4oz)

$12.94 USD

Natto and Kombu Mix 1.5oz(45g) - YAMASAN KYOTOUJI

Natto and Kombu Mix 1.5oz(45g)

$12.87 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Kombu Mix 1.5oz(45g) - YAMASAN KYOTOUJI

Natto and Kombu Mix 1.5oz(45g)

$12.87 USD

Natto and Kombu Mix 1.5oz(45g) - YAMASAN KYOTOUJI

Natto and Kombu Mix 1.5oz(45g)

$12.87 USD

Natto and Kombu Mix 1.5oz(45g) - YAMASAN KYOTOUJI

Natto and Kombu Mix 1.5oz(45g)

$12.87 USD

Chili Oil 100g(3.5oz) - YAMASAN KYOTOUJI

Chili Oil 100g(3.5oz)

$13.49 USD

Chili Oil 100g(3.5oz) - YAMASAN KYOTOUJI

Chili Oil 100g(3.5oz)

$13.49 USD

Ponzu Sauce (Yuzu Blend) 300ml(10.14floz) - YAMASAN KYOTOUJI

Ponzu Sauce (Yuzu Blend) 300ml(10.14floz)

$20.21 USD

Ponzu Sauce (Yuzu Blend) 300ml(10.14floz) - YAMASAN KYOTOUJI

Ponzu Sauce (Yuzu Blend) 300ml(10.14floz)

$20.21 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto and Koji Mix 180g(6.3oz) - YAMASAN KYOTOUJI

Natto and Koji Mix 180g(6.3oz)

$16.14 USD

Natto Starter Set

Try Them All

Natto Fermented Soybean 70g(2.4oz) - YAMASAN KYOTOUJI
Dried Natto Beans 70g(2.4oz)
$14.35
Natto Fermented Soybean Powder 50g(1.76oz) - YAMASAN KYOTOUJI
Natto Powder 50g(1.76oz)
$19.38
Natto Furikake Seasoning 40g(1.4oz) - YAMASAN KYOTOUJI
Natto Furikake 40g(1.4oz)
$14.38
Natto Superfood Set – Gut Health from Beans to Seasoning
Natto Koji
$17.93
Natto Superfood Set – Gut Health from Beans to Seasoning
Beans & Powder & Furikake
$39.99
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Customer Reviews

Based on 99 reviews
78%
(77)
19%
(19)
3%
(3)
0%
(0)
0%
(0)
A
Anonymous
Delicious

Delicious with brown rice

L
Leon Willhite

Makes great natto

C
Celia

Amazing !!!

d
davey

If natto grosses you out but you still want the health benefits, this is your loophole. Smells like almost nothing, mixes into your rice or salad, and doesn’t ruin your kitchen. My gut biome is throwing a parade.

P
Planet West

This works well for starter. You just put some on the cooked soy beans and let it ferment at about 105° for 24 hours.

Founded in 1995

We began our business in 1995 with door-to-door sales, delivering carefully selected healthy foods such as miso, soy sauce, and tea directly to households.

三方よし (Sanpō Yoshi)

Inspired by the spirit of Sanpō Yoshi — good for the seller, the buyer, and society — we strive to create value for producers, customers, and our employees alike.

Traditions and Culture

We are working to share various Japanese foods along with their traditions and culture, conveying the thoughts and passion of the producers behind them.

From Japan to the World

Connecting people through the taste of home, the spirit of care, and the beauty of Japanese food culture.