A Supplement So Good It's Criminal | Natural Foundation Nattokinase
CAM 07 · STORAGE 02 MAR 2026 · 14:01:42
EVIDENCECaught on camera at our Oxford manufacturing facility, 2 March 2026.

A supplement so good it's criminal.

On March 2nd, a masked intruder broke into our Oxford facility. He didn't take the cash. He didn't take the equipment. He took just one thing: bottles of our Nattokinase Arterial Support.

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▌ INCIDENT REPORT

Why would someone risk prison
to steal a heart supplement?

At 13:59 GMT on Monday March 2nd, two of our production staff were finishing a packing run inside our Oxford manufacturing facility. Less than three minutes later, our security cameras picked up a man in a balaclava walking through the storage area. Straight past the cash. Straight past the equipment. He reached into a bin of finished Nattokinase bottles.

He didn't try to take everything. He didn't try to be quiet. He looked directly at the camera. He took what he came for, and he left.

So we asked the obvious question. The same one you're probably asking now.

Earlier this year, a report came out comparing the top nattokinase brands sold in the UK against their label claims: Horbaach, Double Wood, Luma Nutrition, Bulk Supplements, Hybrid Health, Raibu, Vinco, and our own. Only one brand passed third-party testing. Ours did. The other seven came in between 17.8% and 93% of their labelled dose.

Since the report came out, we've been watching what's happening on eBay. Resellers are buying our bottles in bulk from our website and listing them at up to twice the retail price. A 50% markup is now considered standard.

Here is what the lab measured:

EXHIBIT A · POTENCY ANALYSIS

Verified nattokinase potency vs. label claim

Eight top-selling UK nattokinase brands tested at an ISO 17025 accredited laboratory. Potency measured in FU (Fibrinolytic Units) against the dose printed on each label.

Natural Foundation
134%
Horbaach
93%
Double Wood
70%
Luma Nutrition
67%
Bulk Supplements
67%
Hybrid Health
27.6%
Raibu
26.4%
Vinco
17.8%

Only 1 of 8 brands delivered the potency printed on its label. Ours tested at 134%.

✓ 3rd Party Tested · SORA Labs (ISO 17025) ✓ 134% of Label Potency Verified ✓ GMP Certified UK Facility

Which is to say: there is now a small but very active black market for properly-made nattokinase in the UK. The footage above is what that looks like at the supply end.

Nattokinase Arterial Support bottle
Increase the elasticity & strength of your arteries Plus traditional herbs that support heart function and normalise blood pressure.*
▌ BACKGROUND

First, what exactly is Nattokinase?

If you've never heard of it, that's not your fault. Nattokinase is a powerful enzyme used routinely in Japan for cardiovascular health, but it remains largely unknown in the UK, even among GPs.

It's extracted from natto, a fermented soybean dish that's been a breakfast staple in Japan for over a thousand years. The active enzyme was first isolated in 1980 by Dr. Hiroyuki Sumi at the University of Chicago.

In plain terms: nattokinase breaks down fibrin, the sticky protein your body uses to form blood clots. As we age, fibrin accumulates inside our blood vessels and contributes to arterial thickening, restricted blood flow, and higher blood pressure. Nattokinase activates plasminogen, the body's natural clot-dissolving system.

Researchers have published over 30 clinical trials on nattokinase. The largest tracked 1,062 participants over 12 months.

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Harry Redknapp

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

Harry RedknappFormer Football Manager Verified

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

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Nattokinase Arterial Support

Formulated with Nattokinase, Motherwort and Oregano. Clinically studied and traditionally used ingredients for cardiovascular support.

For cardiovascular health*
Improves function of the heart*
Strengthens blood vessels*
Increases elasticity and strength of blood vessel and capillary walls*
Normalises blood pressure*
Contains herbs with heart activity soothing, blood pressure and cholesterol reducing properties*
Contains herbs with heart invigorating and blood vessel enlarging properties*
Nattokinase · Fibrinolytic enzyme Motherwort · Leonurus cardiaca Oregano · Origanum vulgare

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

Here's how Nattokinase Arterial Support works

1
Clots

Clots form in arteries

Fibrin binds to cholesterol and calcium, forming dangerous blockages that restrict blood flow.

2
Dissolving

Nattokinase dissolves fibrin

The enzyme degrades fibrin and activates plasminogen, your body's natural clot-dissolving system.

3
Clear

Arteries clear, flow improves

Blood vessels strengthen and heart function improves for long-term cardiovascular health.

We test every batch. Then we publish the results.

Most brands never test after formulation. We test every single production batch through an independent ISO 17025 accredited laboratory before it ships.

1

Manufactured

GMP-certified facility, Oxford UK

2

Sampled

Random samples from every batch

3

Lab tested

SORA Labs (ISO 17025) analysis

4

Published

Results at testing.nfsupplements.co.uk

36%
Reduction in artery plaque
18.1%
Reduction in LDL cholesterol
19.6%
Reduction in blood clot events

Scientific Studies

10,800 FU/day

Reduced artery plaque & cholesterol

👥 1,062 participants📅 12 months⚗️ RCT
Artery plaque reduction
Up to 36%
LDL cholesterol improved
84.3% of participants
HDL cholesterol improved
89.1% of participants

Artery wall thickness dropped from 1.33 mm to 1.04 mm. The lower dose of 3,600 FU/day was ineffective.

doi.org/10.3389/fcvm.2022.964977 →
Observational · 16 years

Reduced cardiovascular mortality

👥 29,079 participants📅 16 years follow-up
Lower CVD mortality
25% reduction
Lower stroke mortality
31% reduction
doi.org/10.3945/ajcn.116.137281 →
6,000 FU/day

Reduced artery plaque

👥 86 participants📅 26 weeks⚗️ Controlled trial
Plaque reduction (NK vs control)
−36.6% vs −11.5%

Plaque area decreased from 0.25 to 0.16 cm², artery thickness from 1.13 to 1.01 mm.

doi.org/10.3760/cma.j.issn.0376-2491.2017.26.005 →
5,000 FU/day

Reduced cholesterol levels

👥 113 participants📅 120 days⚗️ RCT
Total cholesterol (NK vs placebo)
−13.75 vs −4.16 mmol/L
doi.org/10.3390/nu15194239 →
4,000 FU/day

Reduced blood clotting factors

👥 45 participants📅 2 months
Fibrinogen reduction
7 to 10%
Factor VIII reduction
17 to 19%
doi.org/10.1016/j.nutres.2009.01.009 →
~3,600 FU/day + Red Yeast Rice

Reduced cholesterol & blood pressure

👥 178 participants📅 90 days⚗️ RCT
Diastolic blood pressure
−7.39 mmHg
doi.org/10.3389/fnut.2024.1380727 →

How your arteries improve over time

This is why we recommend a 12-month autoship. Research shows that's how long it takes for nattokinase to deliver its full effect.

0

Month 0: Starting point

Plaque buildup restricts blood flow. Fibrin, cholesterol and calcium have formed blockages inside artery walls over years.

Month 0 clogged artery
4

Month 4: Early progress

Nattokinase is actively breaking down fibrin and activating your body's natural clot-dissolving system. Improvements in blood viscosity and flow begin.

Month 4 plaque starting to reduce
8

Month 8: Significant improvement

Artery wall thickness is reducing. Cholesterol levels are improving. Blood vessels are strengthening and becoming more elastic.

Month 8 arteries clearing
12

Month 12: Full results

After 12 months of consistent daily use, research showed artery wall thickness dropped from 1.33 mm to 1.04 mm and plaque reduced by up to 36%.

Month 12 clear healthy artery
Based on a 12-month study with 1,062 participants at 10,800 FU/day. doi.org/10.3389/fcvm.2022.964977
Start Your 12-Month Journey
Choose Your Plan

Nattokinase Arterial Support · 5,000 FU

★★★★★ 285 reviews

Delivered Monthly

30 Day Supply

Just £1.00 per day
Nattokinase 1 bottle
30 Day Supply£29.99
Free with your order
Free Circulation Booster Capsules£24.99
Free Ultimate Heart Health eBook£14.99
£69.97£29.99
Or 4 interest-free payments of £7.50 with Klarna
Autoship & save 10%
Cancel anytime
Delivery every 30 days
Circulation Booster Capsules Ultimate Heart Health eBook

Every order includes free gifts

Your Ultimate Heart Health eBook + Circulation Booster Capsules ship with every plan (worth £39.98), yours free.

60-day guarantee Made & ships from UK 3rd-party tested Backed by science
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★★★★★

Now non-hypertensive. I have been using the supplement for 33 days. My doctor has just confirmed I am now non-hypertensive.

G
Glenn R.
✓ Verified buyer
★★★★★

It works. Down from 145/94 to 125/82 on average.

G
Gerald M.
✓ Verified buyer
★★★★★

I can genuinely feel the benefits. At 59 years old I had growing concerns about my arterial health. I am only three weeks in and my breathing is better, I'm feeling more awake and I cannot recommend Nattokinase enough!

A
Anonymous
✓ Verified buyer
★★★★★

Incredibly impressed by the results. My blood pressure was on average 155/95 and my latest reading was 119/75. I found Natural Foundation and I have to say I'm incredibly impressed.

D
David
✓ Verified buyer
★★★★★

A customer for about 4 months. My blood pressure has come right down so I will keep taking it.

R
Returning customer
✓ Verified buyer
★★★★★

Recommend to all my patients. Been on Nattokinase for several months. I like it and recommend to all my patients and family. I am a physician in practice.

P
Physician
✓ Verified buyer
★★★★★

BP is definitely sorting itself out. Started taking the tablets about 3 weeks ago and my blood pressure is definitely sorting itself out, steady and a lot lower which is a big relief.

S
Sarah
✓ Verified buyer
★★★★★

Outstanding. I've noticed a change in my circulation. It feels a lot different for the better.

K
Kenneth D.
✓ Verified buyer

Backed by published clinical studies

36%
reduction in artery plaque reported in a published 12-month study
👥 1,062 participants📅 12 months
frontiersin.org/journals/cardiovascular-medicine →
FAQs

Questions About Nattokinase Arterial Support?

Everything you need to know: ingredients, dosage, shipping and autoship.

About the Product

A capsule supplement for cardiovascular health containing 5,000 FU of Nattokinase alongside Motherwort and Oregano extracts. These are clinically studied and traditionally used ingredients for heart and artery support.

A fibrinolytic enzyme derived from natto, a traditional Japanese fermented soybean food used for centuries and widely researched for cardiovascular health.

Motherwort improves heart function, normalises blood pressure, and has cholesterol-reducing properties*. Oregano supports cardiovascular health, strengthens blood vessels, and increases elasticity of blood vessel walls*.

Many customers already take Vitamin K with Vitamin D, causing doubling-up. Also, Nattokinase supports blood flow while Vitamin K is a clotting agent, somewhat counterproductive. We recommend a separate D3+K2 alongside.

How to Take It

1 capsule per day with water, preferably with a meal.

Any time of day. Most take it with breakfast. Consistency matters most.

Some notice changes within weeks, but full benefits are seen over a 12-month course.

Yes, many customers take both as part of the Heart Health Bundle.

Quality & Safety

If you are taking any medication, please consult your doctor before starting Nattokinase Arterial Support.

Yes, vegetable capsules with no animal-derived ingredients.

UK, certified facility. Every batch third-party tested.

Contains soy. Free from gluten, dairy, nuts, artificial colours or preservatives.

Shipping & Autoship

Dispatched same/next day. UK 1 to 3 working days.

Yes for 3-month and longer autoship plans. Small fee for monthly or one-time orders.

Anytime. No lock-in, no penalty.

The 12-month autoship. Studies show full benefits over 12 months.

Still have questions? info@nfsupplements.co.uk

*Permitted UK/EU health claims based on traditional herbal use.

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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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