---
product_id: 4194125
title: "Nattokinase 2000 FU Supplement for Men & Women - Supports Blood Flow, Heart Health, & Healthy Circulation, Nattokinase Enzyme Sourced from Japanese Natto, Capsule Form - 90 Veg Caps"
brand: "doctor's best"
price: "$26.60"
currency: USD
in_stock: true
reviews_count: 11
category: "Doctor's Best"
url: https://www.desertcart.us/products/4194125-nattokinase-2000-fu-supplement-for-men-and-women-supports-blood
store_origin: US
region: United States of America
---

# 100% vegan & non-GMO 2000 FU nattokinase potency Supports cardiovascular health Nattokinase 2000 FU Supplement for Men & Women - Supports Blood Flow, Heart Health, & Healthy Circulation, Nattokinase Enzyme Sourced from Japanese Natto, Capsule Form - 90 Veg Caps

**Brand:** doctor's best
**Price:** $26.60
**Availability:** ✅ In Stock

## Summary

> ❤️‍🔥 Unlock your heart’s potential with every capsule!

## Quick Answers

- **What is this?** Nattokinase 2000 FU Supplement for Men & Women - Supports Blood Flow, Heart Health, & Healthy Circulation, Nattokinase Enzyme Sourced from Japanese Natto, Capsule Form - 90 Veg Caps by doctor's best
- **How much does it cost?** $26.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4194125-nattokinase-2000-fu-supplement-for-men-and-women-supports-blood)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Brand Legacy:** Doctor’s Best, a reputable name with over two decades of quality and efficacy.
- • **Heart Health Champion:** Clinically studied to support healthy circulation and reduce cardiovascular risks.
- • **Precision Enzyme Power:** Each capsule delivers a potent 2,000 FU nattokinase dose for optimized blood flow.
- • **Clean & Conscious Formula:** Non-GMO, vegan-friendly, and free from Vitamin K2 to fit your clean lifestyle.
- • **Small Capsule, Big Impact:** Easy-to-swallow veggie caps designed for daily convenience and consistent results.

## Overview

Doctor's Best Nattokinase offers a scientifically-backed 2,000 FU enzyme dose derived from traditional Japanese natto, designed to enhance blood circulation and support cardiovascular health. This vegan, non-GMO formula excludes Vitamin K2 for a clean, focused supplement trusted by thousands seeking heart wellness and improved blood flow.

## Description

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 soybeans, releasing nattokinase. best nattokinase contains pure nattokinase enzyme with all vitamin k removed.

Review: It is a great product for SOME people - I felt obligated to write a review about "Doctor's Best Best Nattokinase (2, 000 Fu)" because the improvement my family felt over last 2 years. You are right, 2 years, which qualifies me to write a meaningful review on it. Why did my family start to use it? My father had a heart attack two and a half years ago. The ECG & MRI diagnoses were not good and he also had Embolism. With traditional treatment, I started looking for additional supplements that could help. After some research, I found Nattokinase could be one choice and "Doctor's Best" is quite reputable with very reasonable price. So everything happened there. What is the benefit? The improvement is STEADY and HUGE. AFTER CONSULTING THE DOCTOR, my father started taking the 2k Fu pills everyday. Because some worries about potential risks (see below), I asked him to take 1 pill a day in warm seasons and 2 pills a day in cold seasons, and asked him to regularly do the blood tests. After 1 year, the ECG result showed an improved T-wave from -4 to -3 (I'm not professional and the numbers are direct readings from the ECG curve which was explained by the doctor "a good sign of improvement"). And last week, after 2 years of taking the pills, the T-wave is lifted from -3 further to -2 plus significant improvement in body feeling. According to the doctor, this is GREAT! What is the other benefit? I started to take it about 1 year ago because my blood pressure is a bit high and I know my blood is very viscous. I constantly monitored my blood pressure afterwards and found that it decreased from average low@86~high@131 to low@75~high@119 in about a year. I'm not taking any other blood pressure control pills and my diet habit is the same. So this is definitely due to Nattokinase. And I'm happy about it. What are the RISKS? While doing the research before buying, I noticed there is a scientific paper (published) discussed the improvement of blood mobility (reduction of viscosity) after treatment of Nattokinase (many adults were taking the pills and their blood samples were tested over some time period). And then there are reports stating that longer time is needed to stop bleeding and unexpected bleeding occurs while some people brushing the teeth after taking Nattokinase. So I think there must be risks about it. And indeed, my mom can't take it because several days of Nattokinase intake would always cause her teeth to bleed after brushing. So for those who have this kind of problem, be careful. The best way is to always consult your doctor before taking and when anything unusual happened after taking. In summary, Pro: It worked in my cases; Pills are small; "Doctor's Best" is a good brand. nothing really bad, you just need to know if it fits you.
Review: Great product - Great product!

## Features

- DOCTOR'S BEST NATTOKINASE - Contains nattokinase enzyme with Vitamin K2 removed. Nattokinase, an enzyme that is derived from natto, a traditional Japanese food made by fermenting soybeans with Bacillus subtilis bacteria.
- ENHANCES BLOOD FLOW - contributes to heart health by acting as a fibrinolytic enzyme, improving circulation throughout the body, potentially lowering the risk of cardiovascular issues associated with poor blood circulation.*
- CARDIOVASCULAR HEALTH - Nattokinase has been studied for its potential to support heart health. Multiple authors have described the significant effects of natto. Nattokinase has been growing in popularity as a supplement for cardiovascular health.*
- SCIENCE-BASED - Studies on Nattokinase indicate that it may promote healthy blood circulation and cardiovascular health due to its ability to break down fibrin, potentially improving blood, and supporting overall cardiovascular well-being.*
- POTENCY & SERVING SIZE – Every 1 capsule serving size provides 2,000 FU of Nattokinase. Nattokinase fibrinolytic activity units (FU) refer to the enzyme activity levels. Enzyme potencies are typically measured according to their activity levels.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B000BD0RRM |
| Best Sellers Rank | #5,475 in Health & Household ( See Top 100 in Health & Household ) #691 in Sales & Deals |
| Customer Reviews | 4.6 4.6 out of 5 stars (8,655) |
| Date First Available  | October 2, 2001 |
| Department  | Health and Beauty>Health and Wellness |
| Is Discontinued By Manufacturer  | No |
| Item model number  | DRB-00125 |
| Manufacturer  | Doctor’s Best, Inc |
| Product Dimensions  | 2.13 x 2.13 x 3.69 inches; 2.12 ounces |

## Product Details

- **Brand:** Doctor's BEST
- **Diet Type:** Vegan
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.06 Kilograms
- **Item dimensions L x W x H:** 2.13 x 2.13 x 3.69 inches
- **Primary Supplement Type:** Enzyme
- **Product Benefits:** Heart Health Support
- **Special Ingredients:** nattokinase
- **Unit Count:** 90 Count

## Images

![Nattokinase 2000 FU Supplement for Men & Women - Supports Blood Flow, Heart Health, & Healthy Circulation, Nattokinase Enzyme Sourced from Japanese Natto, Capsule Form - 90 Veg Caps - Image 1](https://m.media-amazon.com/images/I/61wC1PaBLnL.jpg)

## Questions & Answers

**Q: Thanks for your answers.**
A: From what I've read it works very well for people who have clotting problems as it "supposedly" disolves clots. I had a small clot which lodged in my lungs, and they prescribed blood thinner Warfrin along with the side effects.  Now I take Natto as a preventative measure....it cant hurt and I've been fine ever since.    The benefits of nattokinase are many, including reducing blood pressure, easing blood pressure, minimizing blood clots, alternative to aspirin, and dissolving fibrous tissue in the body.  http://www.ehow.com/facts_5044709_benefits-nattokinase.html

**Q: Am taking different vit k2 mk7, but how is this different? thought vit k2 was good. thanks**
A: You only get good benefit from Vitamin K if it is MK7 (not MK4).  I've been taking both for the past 4 years and I'm 73.  The reason there is juch low cardiovascular morbidity in Japan is because they eat Natto (a form of specially fermented soy) and a certain enzyme has been isolated as the root benefit to heart health, and they named it 'Nattokinase'.  It 'conditions' your blood is the best way I can describe it.  MK7 serves an entirely different purpose along with Vit D3 (more lives could have been saved from COVID by promoting Vitamin D3, than by the multi-million dollar so-called 'vaccine').

**Q: when is the expiration date for the product?
or how long is the expiration date?**
A: "I just got my second bottle about 2 week's ago".... and the expiration date is June of 2016,... so it has a shelf life of well over 2 years and this product is the best supplement that I have ever taken. It has made my health much better.

**Q: How many mg in a capsule?**
A: 100mg = 2000 FU

## Customer Reviews

### ⭐⭐⭐⭐⭐ It is a great product for SOME people
*by G***T on October 12, 2012*

I felt obligated to write a review about "Doctor's Best Best Nattokinase (2, 000 Fu)" because the improvement my family felt over last 2 years. You are right, 2 years, which qualifies me to write a meaningful review on it. Why did my family start to use it? My father had a heart attack two and a half years ago. The ECG & MRI diagnoses were not good and he also had Embolism. With traditional treatment, I started looking for additional supplements that could help. After some research, I found Nattokinase could be one choice and "Doctor's Best" is quite reputable with very reasonable price. So everything happened there. What is the benefit? The improvement is STEADY and HUGE. AFTER CONSULTING THE DOCTOR, my father started taking the 2k Fu pills everyday. Because some worries about potential risks (see below), I asked him to take 1 pill a day in warm seasons and 2 pills a day in cold seasons, and asked him to regularly do the blood tests. After 1 year, the ECG result showed an improved T-wave from -4 to -3 (I'm not professional and the numbers are direct readings from the ECG curve which was explained by the doctor "a good sign of improvement"). And last week, after 2 years of taking the pills, the T-wave is lifted from -3 further to -2 plus significant improvement in body feeling. According to the doctor, this is GREAT! What is the other benefit? I started to take it about 1 year ago because my blood pressure is a bit high and I know my blood is very viscous. I constantly monitored my blood pressure afterwards and found that it decreased from average low@86~high@131 to low@75~high@119 in about a year. I'm not taking any other blood pressure control pills and my diet habit is the same. So this is definitely due to Nattokinase. And I'm happy about it. What are the RISKS? While doing the research before buying, I noticed there is a scientific paper (published) discussed the improvement of blood mobility (reduction of viscosity) after treatment of Nattokinase (many adults were taking the pills and their blood samples were tested over some time period). And then there are reports stating that longer time is needed to stop bleeding and unexpected bleeding occurs while some people brushing the teeth after taking Nattokinase. So I think there must be risks about it. And indeed, my mom can't take it because several days of Nattokinase intake would always cause her teeth to bleed after brushing. So for those who have this kind of problem, be careful. The best way is to always consult your doctor before taking and when anything unusual happened after taking. In summary, Pro: It worked in my cases; Pills are small; "Doctor's Best" is a good brand. nothing really bad, you just need to know if it fits you.

### ⭐⭐⭐⭐⭐ Great product
*by A***R on January 3, 2026*

Great product!

### ⭐⭐⭐⭐⭐ Straight to the Heart ❤️ Real Results You Can Feel⚡️
*by B***E on September 16, 2025*

I take a lot of supplements but by far this one has amazed me the most 🙌 Nattokinase is an enzyme from fermented soy (natto) and studies show it helps support a healthy circulatory system 🩸 by keeping blood flow smooth and balanced while supporting normal fibrinogen levels. In simple terms it helps your heart and circulation stay strong 💪 ✨ Who Should Try This: ✔️ Anyone wanting natural support for circulation and heart health ❤️ ✔️ People looking to maintain healthy blood pressure and blood flow 💧 ✔️ Those who want to support the body’s ability to manage fibrin 🩸 ✔️ Wellness lovers who prefer non GMO 🌱 vegan 🌿 and science backed supplements 📘 🌟 Why Doctor’s Best: I’ve trusted this brand for years and they never disappoint. The 2000 FU potency per capsule is powerful effective and easy to take once a day. Plus it’s vegan and non GMO which gives peace of mind ✅ Since starting I’ve noticed more energy ⚡ less sluggishness 🛑 and just overall better circulation. I recommend this to my friends and family because the difference is REAL 🙏 If you are serious about cardiovascular and circulatory health this is a supplement worth trying 🚀

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-27*