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Here's Why Nattokinase Is the Secret to Healthy Cardiovascular Function & Circulation

SUPPORT YOUR HEART HEALTH
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The Science

Why Even 1% Less Plaque Changes Everything

A major 2023 study combined 23 clinical trials and over 7,400 patients. The results were striking β€” even tiny reductions in artery plaque led to dramatically fewer heart events.

1%

Just 1% plaque shrinkage reduced the risk of heart attack, stroke, or cardiovascular death by up to 25%

Based on meta-analysis of 23 clinical trials

Risk Reduction From Plaque Regression

Heart Attack
–25%
Stroke
–20%
CV Death
–14%
All-Cause Death
–10%

It's Not Just Smaller β€” It's Safer

When plaque shrinks, it doesn't just get a little smaller. It transforms from a dangerous, unstable mass into a firm, calcified cap β€” and that distinction is everything.

Unstable plaque has a thin, fragile outer layer. When it ruptures, your body reacts the same way it does to a wound β€” it forms a blood clot. But inside an artery, that clot can block blood flow entirely. If it happens in the heart, it's a heart attack. In the brain, a stroke. This is how the majority of cardiac events actually occur β€” not from arteries slowly closing, but from plaque suddenly breaking open.

Even a small reduction in plaque volume stabilises the remaining plaque, thickening that protective cap and dramatically lowering the chance of rupture.

Cross-section diagram of an artery showing plaque buildup narrowing the lumen
The Research

Research Shows Nattokinase May Support Healthier Arteries

A 12-month clinical study of 1,062 participants examined nattokinase's role in supporting cardiovascular health. Here's what the researchers observed.

1,062 Participants
12 Months
10,800 FU / Day
Avg 68 Years Old
Artery Observations

Researchers Observed Positive Changes in Artery Health

After 12 months, researchers measured both plaque size and artery wall thickness using ultrasound imaging.

36% Reduction in plaque size observed*
1.33 mm β†’ 1.04 mm
Carotid artery wall thickness*

The carotid artery supplies blood to the brain. These measurements are commonly used by researchers to assess cardiovascular wellness.

Lipid Profile Observations

Participants Showed Improvements in Key Lipid Markers

The majority of participants showed positive changes in lipid markers after 12 months of nattokinase supplementation at 10,800 FU/day.

Total Cholesterol 95.4%
HDL "Good" Cholesterol 89.1%
Triglycerides 85.2%
LDL "Bad" Cholesterol 84.3%

% of study participants who showed improvement*

The Science

What Is Nattokinase?

Nattokinase is a natural enzyme produced during the fermentation of soybeans into natto β€” a traditional Japanese food eaten for over 1,000 years. Japan has the second-highest life expectancy in the world, and areas where people eat the most natto consistently show lower rates of heart disease and stroke.

The enzyme was first discovered by Japanese researcher Dr. Hiroyuki Sumi in 1987, and has since become one of the most studied natural heart-health compounds in the world. It works by breaking down fibrin β€” the protein that holds blood clots together and keeps plaque stuck to your artery walls. Nattokinase dissolves that "glue." It also boosts your body's own clot-dissolving enzymes β€” so your arteries can stay cleaner on their own.

Think of it like this: if plaque is the buildup clogging your pipes, nattokinase is the enzyme that loosens and breaks it apart β€” naturally, safely, and without the side effects of prescription drugs.

1,000+ Years of Japanese Tradition
#2 Highest Life Expectancy Worldwide
7.5B Packs Eaten per Year in Japan
Nattokinase enzyme breaking down fibrin in an artery Nattokinase β€” the enzyme extracted from natto

"But Where Does the Plaque Go?"

This is one of the most common questions people ask β€” and the answer is simple. When nattokinase breaks down fibrin and loosens plaque from your artery walls, those tiny fragments enter your bloodstream as microscopic particles. Your body's built-in filtration system takes care of the rest β€” your liver processes and neutralises the debris, and your kidneys filter it out through urine. It's the same system your body already uses every day to clean your blood β€” nattokinase just gives it more to work with.

1
Nattokinase dissolves fibrin Breaks down the protein "glue" that binds plaque to your artery walls
2
Tiny fragments enter your bloodstream Loosened plaque breaks into microscopic particles too small to cause blockages
3
Your liver and kidneys filter them out Your body's natural filtration system removes the debris through urine
How It Works

Nattokinase Works on Three Fronts

Breaks Down Fibrin

Fibrin is the protein that holds blood clots together and keeps plaque glued to your artery walls. Nattokinase directly dissolves fibrin β€” which is what makes it different from almost every other natural supplement out there.

Helps Your Body Fight Clots

Your body already makes its own clot-dissolving enzyme called t-PA. Nattokinase boosts t-PA production and reduces PAI-1 β€” the protein that blocks it. The result? Your body gets better at clearing dangerous clots on its own.

Supports Healthy Blood Pressure

Clinical studies show nattokinase can lower both systolic and diastolic blood pressure. Better blood flow means less strain on your heart, your brain, and every organ in your body.

Not All Supplements Are Created Equal

Most heart-health supplements on the market are stuffed with cheap synthetic vitamins, manufactured overseas with no clinical backing. Ours is different.

Generic Supplements
Synthetic vitamins with no real clinical evidence for heart health
Manufactured in China with no third-party testing
Bulked out with fillers, binders, and artificial additives
No transparency on dosage, potency, or sourcing
Doesn't target fibrin, plaque, or blood clots directly
NF Supplements Nattokinase
Natural enzyme backed by over 30 years of clinical research
Made in the USA to GMP standards β€” every batch third-party tested
100% natural β€” no synthetic fillers, no artificial additives
Exact dose measured in FU β€” 5,000 or 10,000 per capsule, every time
Directly breaks down fibrin and plaque β€” not just "general wellness"
Your Nattokinase Journey

What To Expect From Consistent Use

Nattokinase works gradually to support your body's natural processes. Here's what the research suggests may happen when you commit to daily supplementation over 12 months.†

Month 0
The Journey Begins
Illustration of cardiovascular system before starting nattokinase
Month 0 The Journey Begins
Illustration of cardiovascular system before starting nattokinase

"The Journey Begins"

This is your starting point. Nattokinase enters the bloodstream within hours and begins supporting your body's natural fibrinolytic processes β€” the system responsible for maintaining healthy fibrin levels. Like any meaningful nutritional support, consistent daily use is key to experiencing the full benefits.†

Month 1–3
"Foundation" Phase
Illustration of cardiovascular support during foundation phase
Month 1–3 "Foundation" Phase
Illustration of cardiovascular support during foundation phase

The "Foundation" Phase β€” Trust the Process

Let's be honest β€” you probably won't feel any different during this phase. That's completely normal, and it's not a reason to stop. Behind the scenes, nattokinase is actively supporting your body's natural fibrin metabolism and helping maintain cardiovascular function already within the normal range. Your body is building the foundation for the benefits ahead.†

Talk to your healthcare provider about baseline wellness markers. Routine bloodwork can help you track changes in markers like lipid levels over time and understand how your body is responding to supplementation.†

Consider baseline bloodwork with your healthcare provider
Month 4
"Building Momentum" Phase
Illustration of cardiovascular support during momentum phase
Month 4 "Building Momentum" Phase
Illustration of cardiovascular support during momentum phase

Building Momentum β€” Supporting Healthy Fibrin Metabolism

This is where months of consistency start to matter. Nattokinase continues to support your body's natural enzyme activity involved in healthy fibrin metabolism. Some users report noticing improvements in how they feel during daily activities β€” such as a general sense of vitality and well-being. Individual results may vary.†

Supporting the body's natural enzyme processes
Month 8
"Sustained Support" Phase
Illustration of cardiovascular support during sustained phase
Month 8 "Sustained Support" Phase
Illustration of cardiovascular support during sustained phase

Sustained Cardiovascular Support

Months of consistent nattokinase supplementation are now providing ongoing support for your cardiovascular system. Users often report a greater sense of overall well-being, including feeling more energized during everyday activities. Healthy circulation and normal fibrin levels support the body's natural functions across the board. Stay consistent.†

Ongoing cardiovascular support
Month 12
"Maintenance & Well-Being"
Illustration of cardiovascular wellness after 12 months of support
Month 12 "Maintenance & Well-Being" Phase
Illustration of cardiovascular wellness after 12 months of support

The Full Commitment β€” Long-Term Cardiovascular Support

This is why you committed to 12 months. Published research on nattokinase supplementation suggests that long-term, consistent use supports healthy cardiovascular function, including maintaining healthy circulation and supporting the body's normal fibrin metabolism. Twelve months of daily consistency gives your body the sustained nutritional support it needs.†

Follow up with your healthcare provider. Routine wellness bloodwork can help you and your provider understand how your overall wellness markers have responded over time.†

Long-term cardiovascular support through consistent use
Why We Recommend Subscribing

Meaningful Cardiovascular Support Takes Consistency

Let's be real β€” if you buy one bottle, take it for a month, and don't notice anything different, you'll probably stop. And that's exactly the problem. The research on nattokinase suggests that long-term, consistent daily use is what makes the difference. Like many nutritional strategies, the benefits of nattokinase are cumulative and build over time.†

That's why we recommend subscribing. It removes the friction β€” your next bottle arrives before you run out, you never break the chain, and you give your body the full 12 months of consistent support. One bottle is an expense. Twelve months is a commitment to your well-being.

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Transparency

Every Batch. Tested. Every Result. Published.

Most supplement brands ask you to trust them. We'd rather just show you the proof. Every single batch of our nattokinase is independently tested by third-party labs β€” and we publish every result online for anyone to see.

NF Supplements Nattokinase bottle with QR code for batch testing
Scan the QR Code on your bottle to see the exact test results for your batch

How It Works

1
We produce a batch Every production run is assigned a unique batch number that's printed on your bottle.
2
Independent labs test it Third-party laboratories run a series of tests on each batch before it ships to you.
3
We publish every result The full lab report is uploaded to our public testing portal β€” nothing hidden, nothing edited.
4
You scan and verify Scan the QR code on your bottle or enter your batch number on the portal to see your exact results.

What Every Batch Is Tested For

Microbiological Safety Screened for harmful bacteria, mould, and yeast
Identity Verification Confirmed to contain exactly what the label says
Dosage Accuracy Verified to contain the exact FU count per capsule
Independent third-party tested
100% of results published publicly
No results hidden or edited
Scan the QR code on every bottle
Dr. Karen Vieira holding Natural Foundation Supplements Nattokinase Artery Support
Trusted by Professionals

219 Clinicians Recommend Our Nattokinase

Without compensation. Without sponsorship. Without being asked. They recommend it because it works.

0 Clinicians recommend this product
$0 Compensation paid for recommendations
100% Independent & unbiased
That's why I recommend Nattokinase Artery Support β€” it helps maintain healthy circulation by breaking down blood clots and supporting the body's natural ability to cleanse arteries by targeting fatty plaque buildup.
Dr. Karen Vieira via FrontrowMD
Proof Wall – Natural Foundation Supplements

Join 100,000+ Just Like You Supporting Heart Health Naturally

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Questions? We've got you covered!

What is nattokinase?

Nattokinase is a serine protease enzyme (not actually a "kinase" despite its name) produced byΒ Bacillus subtilis nattoΒ during the fermentation of soybeans intoΒ natto, a traditional Japanese food. It is best known for itsΒ fibrinolytic activityΒ β€” its ability to break down fibrin, the protein involved in forming blood clots.

What are the main health benefits of nattokinase?

Research suggests nattokinase may support cardiovascular health in several ways, including supporting healthy blood pressure levels, improving circulation and blood flow, helping prevent and break down blood clots, supporting arterial flexibility, and inhibiting platelet aggregation. Early research also hints at potential benefits for brain health.

What Dosage Should I choose?

Natural Foundation offers nattokinase in two research-backed dosages:5,000 FUand10,000 FU. These dosages are grounded in scientific research. A clinical study of 1,062 participants published in Frontiers in Cardiovascular Medicine found that nattokinase supplementation at10,800 FU/day for 12 months led to a36% reduction in arterial plaque sizeand significant improvements in cholesterol markers. Additional studies have shown that dosages in the range of2,000–7,000 FU/day support healthy blood pressure, improved blood flow, and clot prevention. Natural Foundation's dosages are designed to give you flexibility β€” whether you're looking for daily cardiovascular maintenance (5,000 FU) or more targeted support (10,000 FU).

Why did you remove Vitamin K?

The first reason we took it out is because a lot of people already take Vitamin K with their Vitamin D. So they were getting a double dose and we had a good number of customers complain. Another reason is that Nattokinase is a blood thinner, and Vitamin K is a clotting agent. Vitamin K is essential for making several proteins (like prothrombin) that help your blood clot properly when you get injured. So in that sense it's a bit counterproductive. One does one thing and the other does the opposite. Vitamin K is great for arteries, though, we just didn't think it made sense to have it in the same supplement. We chose to take it out knowing that vitamin D3 K2 is a very affordable supplement and those who want to take it alongside easily can. Motherwort and Oregano also have good benefits for the heart and arteries. It's one of those situations where we can only keep so many people happy...

Can I take this with my current medication?

If you're taking medication, it's best to consult your healthcare provider before adding any supplement.

How long does shipping take?

We dispatch all orders the same day or the next working day. Shipping typically takes 1–3 working days, depending on the shipping option you select at checkout.

Where are your products manufactured?

Our Blood Pressure Support is manufactured in the UK at our certified facility to ensure the highest quality and safety standards.

Are there any side effects?

Nattokinase Artery Support is made from natural ingredients and is generally well-tolerated. However, consult your doctor if you have any pre-existing conditions or concerns.

What is the difference between eating natto and taking a nattokinase supplement?

A 50g serving of natto contains an average of about 1,500 FU of nattokinase. To match Natural Foundation's 5,000 FU dosage through food alone, you'd need to consume roughly 3–4 packs of natto daily β€” and even more for the 10,000 FU dosage. Nattokinase in supplement form is also less vulnerable to stomach acid than the enzyme found in whole natto. Additionally, natto contains significant vitamin K2, which can interfere with certain medications like warfarin, whereas quality nattokinase supplements typically have vitamin K2 removed.

From Our Founder

Why I Built the Supplement Company I Wished Existed

Logan and the Natural Foundation Supplements team outside their GMP facility

Hey, I'm Logan. I founded Natural Foundation Supplements, and I want to take a second to tell you why this company exists.

I started this company because I was tired of being lied to.

I spent over 20 years dealing with health issues. And when I finally started looking into the supplements I was taking, I found out most of them weren't even close to what was on the label.

80% of the nattokinase products we've tested failed to meet their label claims. That's not a typo.

Think about that for a second. You go to the shop, you pick up a bottle, you read the label, you trust it. And 8 times out of 10, what's inside doesn't match what's printed on the outside. The dosages are wrong. The active ingredients are missing. And nobody checks, because nobody is required to.

That's not a quality problem. That's a trust problem. And once I saw it, I couldn't unsee it.

So I built the company I wished existed

One that actually puts what it says on the label. One that proves it with independent third‑party testing. And one that doesn't hide behind proprietary blends or fancy marketing.

We don't outsource production. We manufacture everything in house, in our own GMP‑certified facility. GMP stands for Good Manufacturing Practice, and it means every step of our process, from raw ingredient intake through to bottling, follows strict quality and hygiene standards. We control the entire chain. Nothing leaves our facility unless we're confident it's exactly what the label says it is.

On top of that, every single batch is sent to an independent laboratory. They test for dosage accuracy, identity verification, heavy metals, and microbiological safety. We don't pick and choose which results to share. We publish all of them, for every product, for every batch. Every bottle ships with a scannable QR code. Scan it, and you'll see the exact test results for your batch. Not a generic certificate. Not a stock photo of a lab. The actual results for the actual bottle in your hand.

100% manufactured in house
GMP certified facility
100% of batches third‑party tested
0 results hidden or edited

Transparency isn't a marketing strategy for us. It's the whole point.

I know you had a thousand options when it came to choosing a supplement. And I know that most companies in this industry are saying roughly the same things: "premium quality," "clinically studied," "trusted by thousands." The words are easy. The proof is what's hard.

That's why we don't ask you to take our word for it. We give you the data and let you decide for yourself.

"I spent 20 years trusting labels that weren't worth the paper they were printed on. I built Natural Foundation so you wouldn't have to do the same."

I also test other brands on camera

I post videos on YouTube where I send popular supplements off for independent third‑party testing and share the results publicly. No sponsorships, no filters, just the raw lab data. If you want to see what's really inside the supplements you're buying, search for Logan Talks Health on YouTube.

Thank you for trusting us. I don't take it lightly.

Logan's signature

Founder, Natural Foundation Supplements