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Doctor's Best, Best Nattokinase, 2000 FU, 30 Veggie Caps (Discontinued Item)


Out of Stock - Discontinued
  • Shipping Weight: 0.17 lbs (0.08 kg)
  • Product Code: DRB-00135
  • UPC Code: 753950001350
  • Package Quantity: 30 Veggie Caps
  • Dimensions: 2.1 x 2.1 x 3.8 in, 0.1 lbs (0.05 kg)
Product Overview


  • Science-Based Nutrition
  • Dietary Supplement
  • 2,000 FU's Per Veggie Cap
  • Suitable for Vegetarians

Nattokinase is an enzyme derived from "natto", a traditional fermented soy food popular in Japan. During the natto production process B. subtilis natto, a friendly bacteria, ferments boiled, non-GMO soybeans, releasing nattokinase. Best Nattokinase contains pure nattokinase enzyme with all Vitamin K removed.

Suggested Use

Take 1-2 capsules daily, between meals.

Other Ingredients

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

Contains nothing other than listed ingredients.


Do not use this product if you are pregnant or nursing, are allergic to soy, or if you have a blood coagulation disorder. If you are taking an anticoagulant (blood-thinning medication) or vitamin K, consult a physician before taking this product.

Supplement Facts
Serving Size: 1 capsule
Servings Per Container: 30 servings
  Amount Per Serving % Daily Value
Nattokinase (fibrinolytic units) enzyme activity 2,000 FU
† Daily Value not established.
iHerb Customer Reviews

Instead of aspirin

Posted by fleurdechamp on May 11, 2016

Used on a cat with cardiomyopathy, to replace the prescribed aspirin (which has seemed to have given him intestinal issues). He's been doing great on it so far. (Disappointed to see it discontinued?)

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Posted by NaomiWilson on Oct 26, 2015

Natto is an expensive food and it's frozen at the store. This is great when I don't have natto in my fridge.

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Awesome product

Posted by 5190543549762344981 on Jan 24, 2014

I was taken off Warfarin for blood clots after talomg this and my blood levels have remained normal. HIghly recommended!

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Posted by Reviewer2884369 on Dec 12, 2013

Seems to be a good product

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Posted by 5664721953248270005 on Sep 17, 2013

I brought to help shrink my fibroid that was a size of a 3month old baby. Now since taking Nattokinase along with systemic enzemes I am so happy that my Fibroid is now the size of a peanut and no surgery YAY. I will continue to take this till its completely gone!!! Thanx IHERBS for selling this cheap and for a speedy delivery :) yoll are the best!!

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