1,062-participant clinical study
Over 12 months, nattokinase supplementation was associated with improved lipid profiles and reductions in carotid intima-media thickness and plaque size.
Link to study ↗NewClinically-studied fibrinolytic enzyme
Daily Cardiovascular Support
Ultimate Nattokinase
Fibrinolytic Enzyme
Nattokinase is a fibrinolytic enzyme purified from natto — the traditional Japanese fermented soybean. It's been studied for supporting healthy circulation, blood pressure already in the normal range, and arterial health by helping the body break down fibrin.
Supports: Circulation, Blood pressure, Arterial health, Healthy clotting balance
Third-Party Tested
Vegan & Non-GMO
Soy-Fermented
- Supports healthy circulation
- Blood pressure already in normal range
- Supports fibrin breakdown
- Studied for arterial & carotid health
- 100% vegan & non-GMO
- No fillers or flow agents
30-Day 100% Money-Back Guarantee
Try it risk-free for a full 30 days. If it's not for you, we'll refund you — no hassle.
★★★★★ Trusted by people who care about their heart
Frequently asked questions
Does nattokinase work as an oral capsule?
Yes — nattokinase is an oral enzyme by design. It's been studied in human trials taken as a daily capsule, including a 1,062-participant study over 12 months.
How long does one bottle last?60 capsules at one a day — a full two-month supply.
When should I take it?One capsule daily. Many people take it before bed or on an empty stomach, but consistency matters more than timing.
Do I need to refrigerate it?No — it's shelf-stable. Just keep it somewhere cool and dry.
Can I take it with other supplements or medication?It pairs fine with most supplements. Because nattokinase supports fibrin breakdown, talk to your doctor first if you take blood thinners or antiplatelet medication, have a clotting disorder, or have surgery scheduled.
Is it vegan?Yes — fermented from non-GMO soy and delivered in a plant capsule. No gelatin or animal products.
What does it taste like?Nothing — it's a tasteless capsule you swallow with water.
How soon will I notice results?The cardiovascular benefits in the research were measured over months of consistent use. Think of it as a daily foundation, not a quick fix.
Shipping, returns & guarantee
When will it arrive?
Orders ship from the USA the next business day. You'll get a tracking number by email as soon as it's on its way — most U.S. orders arrive in 3–5 business days.
What if it doesn't work for me?You're covered by our 30-day money-back guarantee. If it's not for you, contact us within 30 days for a full refund — even if the bottle is empty.
How do refunds work?Reach out, we confirm, and your refund goes back to your original payment method. No restocking fees.
How do I get support?Real humans. Reply to your order confirmation email or reach us through our contact page and we'll respond within one business day.
How to use
Take one capsule a day. One vegan capsule daily is the full serving.
Empty stomach or before bed. Many take nattokinase away from food, but any consistent time works.
Stay consistent. Benefits in the research built over months — daily use matters most.
One bottle = 2 months. 60 capsules per bottle.
Check with your doctor if you take blood thinners, have a clotting disorder, or have surgery scheduled.
Clinically studied
Third-party tested
Vegan & non-GMO
Fast U.S. shipping
1,062Participants in a clinical study
12moStudy duration
100%Vegan & non-GMO
0Fillers or flow agents
How it works
Nattokinase & healthy blood flow
Not all nattokinase is equal
MEHR vs generic nattokinase
MEHR Ultimate
Generic nattokinase
Label-verified potency
Vague or unlisted potency
Third-party tested, COA on request
Rarely third-party tested
Vegan capsule, non-GMO
Often gelatin capsules
No fillers or flow agents
Magnesium stearate & fillers
What you're putting in your body
Inside every bottle
NATTOENZYME
Nattokinase
Fibrinolytic enzyme from fermented soy
Purified from natto and produced by Bacillus subtilis. Nattokinase is the enzyme studied for breaking down fibrin and supporting healthy circulation.
VEGANCAPSULE
Plant Capsule
No gelatin, no animal products
A clean plant-based capsule — so the only thing working in your body is the enzyme itself.
CLEANNO FILLERS
Nothing Else
No fillers, flow agents, or proprietary blends
No magnesium stearate. No silicon dioxide. No mystery 'other ingredients.' Just clean, label-verified nattokinase.
By the numbers
What the research shows
1,062
Participants in a 12-month clinical study
100%
Vegan, non-GMO, third-party tested
0
Fillers, flow agents or proprietary blends
Fibrinolytic & cardiovascular activity
A published review summarising nattokinase's fibrinolytic, antihypertensive, anti-atherosclerotic and lipid-lowering activity across studies.
Link to study ↗Cardiovascular risk factors
A systematic review and meta-analysis of randomised controlled trials examining nattokinase's effect on cardiovascular risk factors, including blood pressure.
Link to study ↗Results vary by dose and study; some trials show benefit and others do not. Shared for education — these statements have not been evaluated by the FDA, and this product is not intended to diagnose, treat, cure, or prevent any disease. Consult your doctor before use, especially if you take blood-thinning medication.
Real results
Real customers
What you won't find
Our 'No' list
- No magnesium stearate
- No silicon dioxide
- No fillers or flow agents
- No gelatin (vegan)
- No GMOs
- No proprietary blends
Studied in humans
Backed by clinical research
Unlike many supplements, nattokinase has been studied in human trials — including a 1,062-participant study over 12 months. Every MEHR batch is third-party tested for purity and potency.
Made for the long game
Built for staying active
