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Nattokinase Supplement

$19.95

Nattokinase is a powerful enzyme derived from fermented soybeans. It supports heart health and promotes healthy circulation for overall wellness.
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Description

Nattokinase is a serine protease enzyme isolated from natto, a traditional Japanese fermented soybean food, first identified by Dr. Hiroyuki Sumi in 1980. Nattokinase is an enzyme studied for its role in supporting healthy circulation and cardiovascular wellness.* FU, fibrin units, measures enzyme activity.

This product provides 4,000 FU per serving, verified by third-party testing. Double Wood's formula delivers 4,000 FU (fibrin units) per 2-capsule serving, within the 2,000 to 10,800 FU range studied in published human research, with enzymatic activity verified every batch by an ISO/IEC 17025-accredited laboratory using a fibrin plate assay against reference standards.

For a more complete cardiovascular wellness routine, Nattokinase pairs well with D3K2.* One important timing note: take Nattokinase away from meals and D3K2 with a fat-containing meal, to respect how each ingredient is best absorbed.

Vegan, gluten-free, non-GMO.

Benefits
  • 4,000 FU per serving, within the 2,000 to 10,800 FU range studied in published human research, enzyme activity verified by ISO-accredited lab every batch
  • Supports healthy circulation and blood flow as part of a daily cardiovascular wellness routine*
  • Studied for its interaction with pathways involved in circulation support*
  • 120 capsules, a full two-month supply at the standard daily serving of 2 capsules
  • Vegan, Gluten-Free, Non-GMO, manufactured in a cGMP-certified U.S. facility from globally sourced ingredients

Directions & Dosage

Take 2 capsules (200mg, 4,000 FU) daily on an empty stomach, either 30 minutes before a meal or 2 hours after eating. Do not exceed the labeled dose. Discontinue use two weeks before any planned surgical procedure. If you take prescription anticoagulants, antiplatelet medications, or have a bleeding disorder, consult your healthcare provider before use.
View Certificate of Analysis View Third Party Test Results
Identity, potency, and contaminants verified per batch Identity, potency, and contaminants verified per batch
Manufactured in an FDA-registered cGMP facility Manufactured in an FDA-registered cGMP facility
Manufactured in the USA from Gloabally Sourced Materials Manufactured in the USA from Gloabally Sourced Materials

Benefits

  • Supports Healthy Blood Flow: Nattokinase may help support healthy blood circulation by lowering plasma levels of proteins that may inhibit blood flow.
  • Supports Cardiovascular Health: Research suggests Nattokinase may support cardiovascular health by promoting healthy circulation.
Benefits

Nattokinase

An enzyme extracted from the fermented soybean food natto. It is recognized in traditional wellness practices and modern nutrition. It is commonly chosen to supports healthy circulation and fibrin balance.

Nattokinase

What Customers Are Saying

Reviews

"Reputation of product and overall delivery and ordering experience has always been a good experience."

Jacqueline P.

"Always fast shipping and great selection no matter what you’re looking for."

Aaron B.

"Double Wood is always my go-to for supplements. Great, effective, clean products and always at a reasonable price."

Jan W.

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Supplement Facts

Pairs well with

Powerful alone, stronger together. Nattokinase Supplement delivers targeted support on its own, but combining it with complementary ingredients can help create a more holistic and balanced approach to wellness.

Frequently Asked Questions

What does nattokinase do for the body?

Nattokinase is an enzyme that supports cardiovascular health by promoting healthy blood flow and helping to break down fibrin, a protein involved in blood clot formation. It may also aid in reducing blood pressure and improving overall circulation.

How much nattokinase should be taken per day?

The recommended daily dosage of nattokinase is typically 100 to 200 mg, providing around 2,000 to 4,000 fibrinolytic units (FU). It’s best to follow product guidelines and consult a healthcare provider for personalized advice.

How should nattokinase be taken, and when is the best time to take it?

Nattokinase should be taken on an empty stomach, either 30 minutes before meals or 2 hours after eating, to ensure optimal absorption. The best time to take it depends on personal routine, but many prefer morning or evening for consistency.

Why should nattokinase be taken on an empty stomach?

Nattokinase should be taken on an empty stomach to prevent interference from digestive enzymes and food, ensuring it remains active in the bloodstream to effectively support cardiovascular health and fibrin breakdown.

How long does nattokinase stay in your system?

Nattokinase typically stays active in the system for 8 to 12 hours, depending on individual metabolism and dosage. For consistent benefits, it’s often taken twice daily.

Overall rating: 4.7833333 / 5 from 60 reviews.

AI Generated Review Summary

Nattokinase Supplement from Double Wood is highly potent at 2000 FU/100 mg per capsule, supporting healthy blood flow and cardiovascular health. Customers appreciate its excellent quality and effectiveness.

Summary topics

  • Product Quality (19%): A significant number of customers raved about the excellent quality of the products from Double Wood.
  • Supplement Effectiveness (19%): A significant number of customers appreciated the good quality and effectiveness of the supplements from Double Wood Supplement brand.

Review topics: ["quality","results","shipping","price","supplement","service","order","work"].

Review highlights

  • "These are good quality supplements." — Dr E.
  • "Very happy with the results and quality of your product." — Bruce H.
  • "Process and supplements are great!" — Russell

Reviews

Good quality, fingers crossed

"After researching what Natto is and why it's good for you, I chose to take this brand, due to their results by third party testing. Only time will tell if it has a positive affect on my cardio system."

— Jill B. (4/5)

Nattokinase Supplement

"Arrived in a timely manner. Product quality looks good !"

— Dr E. (5/5)

My doctor was amazed!

"I got the nattokinase, 4000FU I just wish it came in a larger dose as per the Chinese study ***pmc.ncbi.nlm.nih.***/articles/PMC9441630/ I upped my subscription to 3 bottles because I don't want to run out. I believe it's saving my life."

— Raymond W. (5/5)

Review order

"Hello sir, I ordered ordered. by mistake supplemental. Nattokinase by. order # Dw17756 dated February 2026 Till date I didn’t received the order it’s May month running and I buy this for heart condition . I am surprised how come I was returned back address is correct. Please sort it out urgently and mail the supplement order to me you guys are going to get back older order. Thanks Satyapal Chopra 5 Father Tobin Road Brampton Ontario L6R 3 K2 Canada"

— Satyapal C. (5/5)

Natto

"Good stuff"

— David P. (5/5)

Recommended for good health for

"Recommended for good health for the heart."

— Bernard K. (5/5)

Nattokinase

"Great product"

— Fred M. (5/5)

Quality

"I think this is much too weak to be effective. 200 mg. per serving is not enough."

— Thomas M. (2/5)

My Cardiologist recommended this for

"My Cardiologist recommended this for my sticky blood."

— Mary C. (5/5)

Excellent Quality!

"Excellent quality!"

— Kim r. (5/5)

Q&A

Nattokinase Supplement

From

$19.95

Primary Benefit

Heart & Vessels

Other Benefits

Product Form

Capsule
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