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Nattokinase Powder

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Nattokinase Powder

Key Features

  • Derived from soybean
  • Promotes good cardiovascular health
  • 20,000 FU per gram
  • Taste

  • Mixability

Nattokinase is derived from the popular Japanese culinary sensation known as Natto. The texture of Natto is much like cheese, but it is actually derived from soybeans that have undergone intense fermentation. Nattokinase is created as a byproduct of this interaction between bacteria and the soybeans. It helps maintain overall good health.*


Serving Size & Timing

It is suggested that this supplement be taken in servings of 100mg between one and three times per day, depending on intended effect. A serving of 1/32 tsp size is equal to about 89mg; a little over 1/32tsp will be roughly equal to 100mg. However, an accurate gram scale is always the best way to measure small amounts of any substance.

Nutritional Information

Supplement Facts

Serving size: 100 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
Natto Extract...100mg *
Nattokinase activity...2000 FU (fibrinolytic units) *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, dairy, yeast, gluten, corn and additives

As a dietary supplement, take 100 milligrams (rounded 1/32 tsp) one to three times daily, or as directed by a physician.

US Standard Measuring Spoons
Spoon Size(level) milligrams
1/32 teaspoon 88
1/16 teaspoon 177
1/8 teaspoon 355



This product contains no fillers or carriers and contains 20,000 FU per gram.

Nattokinase only contains trace amounts of Vitamin K and is not a significant source of the compound. Under most circumstances, it is not detectable during testing.


If you are allergic to soy products, this should be avoided, as it is derived directly from soy fermentation. As long as suggested serving sizes are adhered to, no negative side effects should be experienced. However, if taking any sort of drug or natural medication/herbal treatment with anticoagulant abilities, this supplement should be avoided until discussion with a medical professional is possible.

Others who should avoid this supplement are those who are taking aspirin, ACE inhibitors, diuretics, Vitamin K, blood clotting medications and beta blockers. This powder should be stored in an area that is free from light, heat and moisture.

Customer Reviews

Bulk Supplements nattokinase is potent, so a little goes a long way and is best measured with a scale. Packaging is excellent, keeping out light and moisture. I understand that nattokinase, an anti-fibrolitic, helps prevent plaque buildup on arteries.*

On 4/11/2017 Thank you, Bulk Supplements said...

A good product for balance.
I'm a herbalist and I am aways looking for product to help keep my body in full balance when it comes to my health. This is one of them! I got the product a few weeks ago to help balance the estrogen in my system that everybody gets for process sources in our food system. A natural source of soy is always better then a process one. This product mixed well with ashwagendha(also a balancing herb). I can start to feel the different in my system. I still have to get use to the taste….but it not that bad because i mix different herbs together. I will buy this product again.*

On 2/13/2017 joseph said...

Excellent product - highly recommend
Increased energy level, sleep quality improvement in first week of use. Will continue taking this product.*

On 1/14/2017 Elizabeth said...

best quality Nattokinase
This Natokinase have helped me in many ways. First it improved my sleep patron and hours. I have been sleeping better and longer. the best side effect is sexual function, man this thing is like a T injection if you combine it with DHEA. I ordered a sample but the results were so great that I order alot more my second time. I will not be without this product.*

On 12/14/2016 Jakob said...

Great product, fast shipping!*

On 11/25/2016 Debra said...

Seems to be working
Product seems to be working. I bought it because of hypertension and in just 2 weeks of use, my blood pressure has gone down from 160+-/100 to 127+-/75+-. Woo hoo! I also have afib and figure the blood thinning action of this material can't hurt.
Taste is a little odd at first, but not difficult to get used to, and you're taking such a small amount that it's almost negligible.*

On 8/2/2016 John said...

I've been using this product for several months now and have noticed an increase in blood flow, and circulation. I feel much better after using this product.*

On 7/14/2016 Benjamin said...

This is a great product. I use this product daily and it has been very beneficial to maintaining good health. *

On 6/7/2016 Tammy said...

Nattokinase Powder
Vitamin K is for great for health very easy way to get into our daily life and have the benefits as it can do many wonderful things for the body.*

On 4/20/2016 susan said...

Great way to use Natto
We are glad to source nattokinase that is free of additives and allows dosing to fit needs. Still the only reliable way to get the benefits of this elusive vitamin and avoid the taste of natto. *

On 4/6/2016 Suzan said...

Great product, *

On 1/9/2016 Susan said...

nattokinase and hypertension
having chronic hypertension for at least 8 years, without medication will range from 160-170/ 105-113. I used nattokinase and CoQ10 and after 3 days 130-140/90-95. sometimes it would fluctuate down to 120-128/88-90. I am still taking about 200mg, 3 times a day. I can wake up with about 150/100, take a dose few hours later would drop to 133/90 and fluctuate up or down 3-5 points. i 've tried dozens of natural/herbal remedies with limited success, but the coq10 and natto seem to work, I'll see how long it holds up.*

On 1/3/2016 micheal said...

powerful blood thinner
I love this product. I continue to purchase it. I buy it for the K2. I find it better than buying a supplement that combines D3 with K2. I add it to my smoothies. My blood used to be thicker. I noticed when I donated blood. I have celiac disease and that lead to inflammation and thicker blood for me. Recently I was bit by a tick, and I bled a lot when I removed the tick. I never got lyme symptoms. I had gotten lyme twice before with tick bites. Fascinating. Not a clear study, but I believe that the Natto helped me not have the spirochete of lyme infiltrate my body. Hard to be sure.*

On 12/23/2015 mindy said...

This is a repeat order of Nattokinase as it has improved my problem with bleeding when I cut myself. Since using this, I injured myself and the bleeding was not a problem. I have read so much how important Vitamin K is for health and as my husband doesn't like taking pills, the powder mixes well into our daily smoothie. It does not spoil the taste and I am very pleased with Nattokinase and with all of the other supplements I have ordered from Bulk Supplements.*

On 12/4/2015 Linda said...

Worth it
Full disclosure, I am writing this review in exchange for a free sample of this product.

That being said, it is difficult to determine just how effective this product is until I can get test results back. I chose Nattokinase as a supplement to pair with the Longjack 100:1 powder (which is unquestionably the best supplement I have EVER taken), as I am in the process of receiving Testosterone and the biggest danger involved is a thickening of the blood. I also generally have bad circulation, which this product does seem to help with.

This product mixes well. As for taste, it tastes exactly how you would expect fermented soybean extract to taste (so not great, but I don't take supplements for taste).

I enjoy this product and will likely continue to take it into the future.

P.S. Get the Longjack extract, it's amazing.*

On 11/28/2015 Nathan said...

I'm happy with not only the nattokinase, but with the shipping. It arrived without any problems, which is an enormous relief. I hope to continue in the future with any purchase with Bulk Supplements.*

On 9/21/2015 Debby Quashen said...

I have always wanted to try Natto but taste and sliminess would discourage me. This powder is incredible. I simply put it in a small amount of my smoothie and I actually enjoy it. I am using it preventatively. So no big effects. Will see when my blood tests come back next December. I have celiac disease, and mild leg vein issues. I am thinking the blood thinning will be helpful as well.*

On 6/10/2015 mindy said...

natto for K2
I could never imagine eating NATTO in the native form, but bulk supplements has done magic by making it into a powder. It is strong in flavor, but a friend who tried it thought it was like chocolate. I do not. But I find it easy to take. Such a small serving size. though it is pricy, many servings in a bag. Do the math. Prefer it to the supplements for K2 on the market.*

On 4/10/2015 mindy said...

Very easy to order from website, and very good price.

Order came sooner than expected!


On 9/4/2014 Henry said...

Easy to use
Fine powder; easy to put in smoothie. Better than pills. Came quickly. Packaged well.*

On 8/31/2014 harlin said...

I got this as a free sample after making a fairly large order and I have found it to be useful for helping to resolve minor injuries incurred during martial arts training. No dramatic benefits, though I feel it may have also helped improve my sleep somewhat. Though I have normal blood pressure and no obvious cardiovascular issues, so I wasn't expecting dramatic changes. The product is pure and well-sealed, per usual!

On 8/19/2014 Casey said...

This is great!
I use Nattokinase as part of a bone building program to avoid the drugs my mother and sister are on. This product has essentially no taste and I avoid capsules with their fillers...this is pure. I have ordered several products from BulkSupplements and I have found them all to be top quality. *

On 4/30/2014 Charis said...

High Praise for Nattokinase
Due to cardiovascular problems and a condition called Dupuytren’s contracture I have been using natural antifibrinolytic (anti-fibrin) supplements for several years now. I have not been using Nattokinase but rather various substitutes (Serrazimes, Nattozimes, Serrapeptase) which were cheaper and easier to find in powdered form. But now that I have discovered BulkSupplements I have a chance to go for the real thing with their natto-derived Nattokinase (on which the most of the research seems to have been done). Also, Nattokinase will not only help with my clotting issues but should help with my high blood pressure as well).

This Nattokinase comes as a very fine powder which has no discernible taste. It comes in a resealable plastic bag that fits inside a resealable metallic-like envelope – all of which makes it very easy to protect the supplement from the degrading effects of air and light. And a little bit of this powder goes a long way.

On 4/5/2014 ARTHUR said...

I like the convenience and effectiveness of Nattokinase powder.
I can easily mix the powder in a glass of water for easy consumption.
Nattokinase can help prevent blood clots and normalize blood pressure.*

On 3/5/2014 Bryan Burrell said...

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