Japanese Fermented Superfood for Everyday Wellness

Easy ways to enjoy authentic natto — from crunchy beans to seasoning and powder.

Discover Natto

Superfood From Japan

What is Natto?

Natto is a traditional fermented soybean food rich in umami and nutrients like probiotics, vitamin K2, and plant-based protein.

Yamasan offers authentic natto from Kyoto in various forms, including whole beans, powder, and furikake — perfect for adding flavor and nutrition to everyday meals.

Dry Natto
Natto Powder
Natto Furikake
Natto Koji Mix
Natto Kombu Mix

Easy Level　★★★

As a Snack or with Rice

Authentic Japanese freeze-dried natto made from non-GMO soybeans using traditional fermentation methods. Convenient, versatile, and rich in natural flavor — perfect for rice bowls, soups, noodles, and salads.

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Easy Level　★★★★★

Mix, Sprinkle, Versatile

Natto Powder is a clean, nutrient-rich superfood made from fermented soybeans. It delivers the probiotic and umami benefits of traditional natto in an easy-to-use powder form with a milder aroma and no stickiness. Perfect for smoothies, soups, dressings, and everyday wellness.

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Easy Level　★★★★★

Sprinkle, Mix

A savory Japanese topping blend packed with umami from seaweed, sesame, kombu, bonito flakes, and more. Beginner-friendly, versatile, and perfect for rice, eggs, noodles, salads, and toast.

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Easy Level　★★★★

Topping, Dip & Mix

A rich Japanese fermented seasoning made with natto and koji. Packed with deep umami and balanced sweetness, it’s perfect for adding flavor to rice, vegetables, and everyday meals.

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Easy Level　★★★★

Rehydrate • Enjoy • Create

A healthy Japanese blend of umami-rich natto and mineral-rich kombu kelp. Perfect for adding deep flavor and natural nourishment to everyday meals.

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Natto Superfood Set – Gut Health from Beans to Seasoning

$17.55 USD

International Shipping Available

Shipping Times

For international orders shipped from Japan:

  • Orders under $89: Small Packet / ePacket — approx. 15–40 business days
  • Orders over $89: EMS/DHL — approx. 7–10 business days


Delivery times are estimates and may be affected by customs clearance, local carriers, public holidays, or weather conditions.

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Eligibility for Refunds (No Return Required in Most Cases)

Due to high international shipping costs, we generally do not require customers to return items. Instead, we will offer a refund or partial refund upon confirmation of the issue.

We accept refunds only in the following cases:

  • The product arrives damaged, defective, or incorrectly delivered.
  • A refund request is submitted within 7 days of receiving the product.
  • Sufficient evidence (such as photos or videos) is provided upon request.

Please contact us before requesting a refund.　Contact

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Q. What if I have an issue with my order?
A. Contact us anytime and we’ll make it right.

Learn more in our Shopping Guide

Natto Superfood Set – Gut Health from Beans to Seasoning

Natto Superfood Set – Gut Health from Beans to Seasoning

$17.55 USD

$17.55 USD

Natto Recipe Idea

Dried Natto, Superfood Fermented Soybean

Dried Natto, Superfood Fermented Soybean

From $17.55 USD

Superfood Natto Fermented Soybean Powder 50g(1.76oz)

Superfood Natto Fermented Soybean Powder 50g(1.76oz)

$20.99 USD

Natto and Kombu Mix 1.5oz(45g)

Natto and Kombu Mix 1.5oz(45g)

$17.50 USD

Natto and Kombu Mix 1.5oz(45g)

Natto and Kombu Mix 1.5oz(45g)

$17.50 USD

Natto and Koji Mix 180g(6.3oz)

Natto and Koji Mix 180g(6.3oz)

$19.55 USD

Natto and Koji Mix 180g(6.3oz)

Natto and Koji Mix 180g(6.3oz)

$19.55 USD

Natto and Koji Mix 180g(6.3oz)

Natto and Koji Mix 180g(6.3oz)

$19.55 USD

Natto and Koji Mix 180g(6.3oz)

Natto and Koji Mix 180g(6.3oz)

$19.55 USD

Natto for Every Meal

Natto Starter Set

Try Them All

Natto Superfood Set – Gut Health from Beans to Seasoning
Dried Natto Beans 70g(2.4oz)
$17.55
Natto Superfood Set – Gut Health from Beans to Seasoning
Natto Powder 50g(1.76oz)
$20.99
Natto Superfood Set – Gut Health from Beans to Seasoning
Natto Furikake 40g(1.4oz)
$17.58
Natto Superfood Set – Gut Health from Beans to Seasoning
Natto and Koji Mix 180g(6.3oz)
$19.55
Natto Superfood Set – Gut Health from Beans to Seasoning
Natto and Kombu Mix 1.5oz(45g)
$17.50
Natto Superfood Set – Gut Health from Beans to Seasoning
Beans & Powder & Furikake
$39.99

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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.