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Harry Redknapp

I've been using these supplements to support my heart and they've been wonderful

Harry Redknapp — Former Football Manager Verified
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What Section – Natural Foundation Supplements
Our Ingredients

Three Powerful Herbs — One Mission for Your Heart

Our Nattokinase Arterial Support brings together nattokinase, motherwort, and oregano — three herbs with deep roots in traditional medicine and a shared purpose: supporting your heart. Together, they contain heart-soothing, blood-pressure- and cholesterol-reducing properties, along with heart-invigorating and blood-vessel-enlarging properties.*

Traditional Japanese natto – fermented soybeans
The Story of Natto

A 1,000-Year-Old Japanese Secret

For over 1,000 years, natto — a traditional Japanese food made from fermented soybeans — has been a big part of the Japanese diet. Japan has one of the highest life expectancies in the world, and natto has been eaten daily across the country for centuries.

In 1987, Dr Hiroyuki Sumi, a researcher at the University of Chicago, found the enzyme inside natto that made it so special. He called it nattokinase — a powerful enzyme created when soybeans are fermented with the bacterium Bacillus subtilis. This discovery opened the door to modern supplements using this remarkable ingredient.

Today, we pair nattokinase with motherwort and oregano — two herbs long valued in European herbal traditions — to create our Nattokinase Arterial Support, designed for your cardiovascular health.*

The Three Herbs in Our Formula

Each ingredient plays a specific role. Together, they work as one blend for cardiovascular health, improved heart function, and stronger blood vessels.*

Natto – fermented soybeans

Nattokinase

From Bacillus subtilis fermentation

Derived from the centuries-old Japanese food natto, nattokinase is an enzyme discovered in 1987 that has been the subject of promising research around the world. Unfortunately, due to lobbying from big pharmaceutical companies, the UK government currently prevents supplement brands from sharing these findings directly. However, a quick search on Google will show you exactly why so many people are excited about nattokinase.

Motherwort herb

Motherwort

Leonurus cardiaca

Known as "lion's heart" in Latin, motherwort has been valued in European herbal medicine for centuries. Its very name — cardiaca — reflects its long connection to heart wellness. It is traditionally recognised for its soothing properties and has been a trusted herb across generations.

Improves heart function and helps normalise blood pressure*

Oregano herb

Oregano

Origanum vulgare

Far more than a kitchen herb, oregano has been used in Mediterranean traditional medicine for thousands of years. Rich in antioxidants, it brings a powerful natural profile to our Nattokinase Arterial Support blend.

Supports cardiovascular health and increases elasticity of vessel walls*

What Our Herbal Blend Can Do

These claims relate to the combination of herbs in our Nattokinase Arterial Support — nattokinase, motherwort, and oregano.

Supports cardiovascular health*

Improves heart function*

Strengthens blood vessels*

Increases elasticity and strength of vessel and capillary walls*

Normalises blood pressure*

Contains herbs with heart-soothing, blood-pressure-reducing, and cholesterol-reducing properties*

Contains herbs with heart-invigorating and blood-vessel-widening properties*

*These claims relate to the herbal ingredients motherwort and oregano contained within Nattokinase Arterial Support.

A Timeline of Discovery

~1000 AD

Natto appears in Japan. Fermented soybeans become a daily food, eaten across the country for centuries and closely linked to Japan's famously long life expectancy.

Ancient Greece

Oregano is prized in Mediterranean medicine. Used across Greece, Italy, and the wider region for thousands of years, oregano's antioxidant-rich profile made it a go-to herb in traditional wellness.

Medieval Europe

Motherwort earns its name. European herbalists recognise Leonurus cardiaca — meaning "lion-hearted" — for its traditional heart-soothing properties. The famous English herbalist Nicholas Culpeper was one of its biggest champions.

1987

Dr Hiroyuki Sumi discovers nattokinase. While researching at the University of Chicago, Dr Sumi finds the powerful enzyme inside natto and names it nattokinase, sparking worldwide interest in this ancient food.

Today

Natural Foundation Supplements combines all three. We bring together nattokinase, motherwort, and oregano in our UK-manufactured, GMP-certified, 3rd-party-tested Nattokinase Arterial Support — built for your cardiovascular health.*

Third-Party Tested & GMP Manufactured

Every Batch of Our Nattokinase Is Independently Tested — Every Result Published

Natural Foundation third-party tests every single batch of Nattokinase before it reaches you. Manufactured in our GMP-certified facility in Oxford, UK and independently verified by ISO 17025 accredited laboratories — we publish 100% of results publicly so you never have to just take our word for it.

Natural Foundation Nattokinase supplement bottle manufactured in a GMP-certified Oxford facility, featuring a QR code linking to independent third-party batch test results
Scan Your Bottle's QR Code View the exact third-party lab results for your specific batch of Natural Foundation Nattokinase
GMP Certified Facility Manufactured in Oxford, UK

How Natural Foundation Tests Every Batch

From our GMP manufacturing facility in Oxford to the independent testing lab and then to your door — here's exactly how Natural Foundation ensures every batch of Nattokinase meets the highest standards of quality and transparency.

  1. Batch production in our GMP facility

    Every production run of Natural Foundation Nattokinase is manufactured in-house at our GMP-certified facility in Oxford. Each run is assigned a unique batch number that's printed directly on your bottle.

  2. Independent third-party laboratory testing

    Before any batch ships, samples are sent to independent ISO 17025 accredited laboratories for a comprehensive panel of tests. Natural Foundation does not test in-house — all testing is fully independent and third-party.

  3. Full results published publicly

    The complete, unedited lab report for every batch is uploaded to the Natural Foundation public testing portal. Nothing is hidden, nothing is redacted, and nothing is selectively published.

  4. Scan your bottle and verify

    Every bottle includes a QR code that links directly to the test results for your specific batch. You can also enter your batch number manually on the testing portal to view your results.

What Every Batch of Nattokinase Is Tested For

Natural Foundation's third-party testing protocol covers the full spectrum of quality, safety, and potency checks — carried out by independent laboratories on every single batch.

Microbiological Safety Independently screened for harmful bacteria, mould, yeast, and pathogens to ensure the product is safe for consumption
Identity Verification Third-party confirmed to contain exactly what the label states — verified nattokinase derived from Bacillus subtilis fermentation
Dosage Accuracy (FU/Capsule) Each capsule is independently verified to contain the exact fibrinolytic unit (FU) count stated on the label — no underdosing
Every batch third-party tested
100% of results published
GMP manufactured in Oxford, UK
ISO 17025 accredited labs

SEE WHAT OUR CUSTOMERS ARE SAYING

Customer Reviews

Based on 357 reviews
78%
(277)
16%
(57)
5%
(17)
1%
(3)
1%
(3)
D
David Jardine

Still forming an assessment after 3 weeks

D
Denzil's Dad
Quietly Impressed

I have heart failure (HFReF) and have the 5000F/U tablets on subscription and after 6 weeks I can breathe more easily and not get out of breath so quickly. It's noticeable. Will be having a cholesterol test in couple of weeks, so I am hoping these may be a change these as well. It is one of the very few supplements that actually works.

D
Douglas Grady
Seems to be working

Nattokinas seems to have worked so far. I'm happy with my results so far.

R
RICHARD

Great

K
Kenny
Nattokinase strength

Very pleased NF supplements now acknowledge that the 5000 F/U daily dose is only the maintenance level. What independent studies there are on this product reveal that if the goal is arterial plaque regression, the only dose with strong evidence is 10,800 FU/day. Also, this is certainly not a quick fix.

FAQs

Questions About Nattokinase Arterial Support?

Everything you need to know before you start — from ingredients and dosage to shipping and subscriptions.

About the Product

Natural Foundation Nattokinase Arterial Support is a cardiovascular health supplement manufactured in-house at a GMP-certified facility in Oxford, UK. It's available in two strengths: 5,000 FU and 10,000 FU per capsule. The 5,000 FU version combines Nattokinase with Motherwort and Oregano extracts, while the 10,000 FU is a pure, high-potency Nattokinase capsule without Motherwort or Oregano. Together, the ingredients improve the function of the heart*, strengthen blood vessels*, and increase the elasticity and strength of blood vessel and capillary walls*. Every batch is independently third-party tested by ISO 17025 accredited laboratories. Natural Foundation recommends the 10,000 FU for best results.

Nattokinase is a fibrinolytic enzyme derived from natto, a traditional Japanese food made from fermented soybeans. It has been used in Japan for centuries and is now widely researched for its role in supporting cardiovascular health. Natural Foundation sources pharmaceutical-grade Nattokinase for its Arterial Support supplement, manufactured in-house at its GMP-certified facility in Oxford, UK.

FU stands for Fibrinolytic Units — it measures the enzyme activity of Nattokinase. Natural Foundation offers two versions designed for different needs.

The 5,000 FU contains Nattokinase alongside Motherwort and Oregano extracts. It's Natural Foundation's standard-strength formula for general wellbeing and long-term cardiovascular maintenance.

The 10,000 FU is a pure, high-potency Nattokinase capsule — it does not contain Motherwort or Oregano. It delivers double the enzyme activity and is Natural Foundation's recommended option for best results. Both are taken as one capsule per day.

Motherwort improves the function of the heart, normalises blood pressure, and has cholesterol-reducing properties*. It also contains herbs with heart-activity-soothing, heart-invigorating, and blood-vessel-enlarging properties*.

Oregano (Origanum vulgare) supports cardiovascular health, strengthens blood vessels, increases the elasticity and strength of blood vessel and capillary walls, and normalises blood pressure*.

Motherwort and Oregano are included in the Natural Foundation 5,000 FU formula only — they are not present in the 10,000 FU.

Natural Foundation removed Vitamin K for two reasons. First, many customers already take Vitamin K alongside Vitamin D, so including it caused unnecessary doubling-up. Second, Nattokinase supports healthy blood flow while Vitamin K is a clotting agent — having both in the same capsule is somewhat counterproductive. Vitamin K is excellent for artery health, so Natural Foundation encourages customers who want it to take a separate Vitamin D3 + K2 supplement alongside Nattokinase Arterial Support.

How to Take It

Natural Foundation recommends 1 capsule per day with water, preferably with a meal — regardless of whether you choose the 5,000 FU or 10,000 FU version. Each capsule delivers the full daily serving.

You can take Natural Foundation Nattokinase Arterial Support at any time of day. Most customers find it easiest to build into their morning routine with breakfast. The key is consistency — take it at the same time each day.

Results vary from person to person. Some customers report noticeable changes within a few weeks, but cardiovascular support is a long-term commitment. Studies show that the full benefits of Nattokinase are seen over a 12-month course, which is why Natural Foundation recommends committing to a full year for the best possible results.

Natural Foundation recommends the 10,000 FU for best results — it's a pure, high-potency Nattokinase capsule delivering maximum fibrinolytic support. It does not contain Motherwort or Oregano. The 5,000 FU is Natural Foundation's standard-strength formula and does include Motherwort and Oregano extracts alongside Nattokinase, making it a solid option for everyday cardiovascular maintenance. Both are taken as one capsule per day.

Yes — many Natural Foundation customers take both products together as part of the Heart Health Bundle. Nattokinase Arterial Support focuses on artery health, vessel strength, and cholesterol-reducing properties, while Natural Foundation Blood Pressure Support targets blood pressure directly with beetroot, potassium, magnesium, and red clover. They complement each other well.

Quality & Safety

Natural Foundation Nattokinase Arterial Support is made from natural ingredients and is generally well-tolerated. However, if you are taking medication — especially blood thinners (anticoagulants) or blood-pressure medication — please consult your healthcare provider before starting any new supplement.

Yes. Natural Foundation Nattokinase Arterial Support uses vegetable capsules and contains no animal-derived ingredients. It is suitable for vegans and vegetarians.

Natural Foundation Nattokinase Arterial Support is manufactured in-house at a GMP (Good Manufacturing Practice) certified facility in Oxford, United Kingdom. Every batch is independently third-party tested by ISO 17025 accredited laboratories for microbiological safety, identity verification, and dosage accuracy — and 100% of results are published publicly on the Natural Foundation testing portal.

Nattokinase is derived from fermented soybeans, so Natural Foundation Nattokinase Arterial Support contains soy. If you have a soy allergy, this supplement is not suitable for you. It is free from gluten, dairy, nuts, and artificial colours or preservatives.

Shipping & Subscriptions

All Natural Foundation orders are dispatched the same day or the next working day. UK delivery typically takes 1–3 working days. International delivery times vary depending on your location.

Yes — all 3-month and 6-month Natural Foundation subscription orders ship free within the UK. One-time purchases and monthly subscriptions include a small shipping fee at checkout.

Absolutely. You can pause, skip, or cancel your Natural Foundation subscription at any time — there's no lock-in and no penalty. We make it easy because we believe the product speaks for itself.

Natural Foundation recommends the 12-month subscription. Studies show that the full benefits of Nattokinase on cardiovascular health are seen over a 12-month course — so committing to a full year gives you the best chance of meaningful results. You'll also save the most compared to shorter plans, with free shipping included on 3-month and 6-month subscriptions.

Still have questions? Email us at info@nfsupplements.co.uk — we typically reply within a few hours.

*Permitted UK/EU health claims for Motherwort and Oregano based on traditional herbal use.