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Doctor's Best, Nattokinase, 2,000 FUs, 90 Veggie Caps

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Doctor's Best, Nattokinase, 2,000 FUs, 90 Veggie Caps

In Stock
90 Vegetarian Capsules
90 Vegetarian Capsules
270 Vegetarian Capsules
  • Expiration Date: Feb 2020
  • Shipping Weight:
    0.06 kg
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  • Product Code: DRB-00125
  • UPC Code: 753950001251
  • Package Quantity: 90 Veggie Caps
  • Dimensions:
    10.2 x 5.3 x 5.3 cm , 0.05 kg
    Switch to Imperial units
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Product Overview


  • Science-Based Nutrition
  • Helps Support Cardiovascular and Circulatory Health
  • Dietary Supplement
  • Vegan
  • Non-GMO
  • Gluten Free

Nattokinase is an enzyme derived from "natto," a traditional fermented soy food popular in Japan. During the natto production process, non-GMO soybeans are boiled and fermented with friendly Bacillus subtilis bacteria producing nattokinase. Doctor's Best Nattokinase contains nattokinase enzyme with Vitamin K2 removed. Nattokinase has been shown to support a healthy circulatory system by helping to maintain normal fibrinogen levels in blood.

Helps support a healthy circulatory system.

Suggested Use

Take 1 capsule daily, between meals, or as recommended by a nutritionally informed physician.

Other Ingredients

Modified cellulose (vegetarian capsule), maltodextrin, magnesium stearate (vegetable source).

Contains: Soy


Do not use this product if you are pregnant or nursing, are allergic to soy, or if you are taking blood-thinning medication, consult a physician before taking this product.

Store in a cool dry place.

Supplement Facts
Serving Size: 1 veggie capsule
Serving Per Container: 90 servings
  Amount Per Serving %Daily Value*
(enzyme activity in fibrinolytic units)
2,000 FU
†Daily Value not established.
iHerb Customer Reviews


Posted by 5413029745130676543 on Jul 02, 2017 | Verified Purchase

I have had several DVT's and Blood Clots on my lungs. I am not able to the normal blood thinners, as they do not agree with me. So I take Natto with fish oil. The specialist that I was under at the local hospital said To keep it up because your blood is all in order.

Thanks for your feedback!

Helps blood circulation

Posted by 5057379895385168515 on Jun 12, 2017 | Verified Purchase

Relieves leg cramps when taken on an empty stomach in the morning

Thanks for your feedback!


Posted by 4767963480202006193 on May 29, 2017 | Verified Purchase

good price and meet my medical professionals standards for natural health

Thanks for your feedback!

Why removing the K2?

Posted by 5056161044514139395 on May 26, 2017 | Verified Purchase

Honestly I am afraid to take this. It could be much better without the vitamin K2 removed. I am giving it a 4 because it was my fault not reading the details before buying.

Thanks for your feedback!

Nattokinase - no noticeable effect

Posted by 5133372914427722972 on May 20, 2017 | Verified Purchase

I used this to try and help improve blood flow to my brain as I have severe ME, poor circulation and suspect a hypercoagulable state. 2 caps taken daily. Over 2-3 months this has made no difference , and in particular when I have had blood taken it is still thick and flows poorly and clots very quickly at the site. I would therefore not recommend this generally, and in particular I do not believe it would be safe for anyone to replace prescription anticoagulants with this. I have previously cared for patients on warfarin and heparin and know the difference in how their blood flows with venepuncture when adequately treated. I have now obtained clexane injections to treat my condition.

Thanks for your feedback!