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Description

Product information "Nattokinase + D3"

As we age, the natural elasticity of blood vessels decreases, blood becomes thicker, and blood pressure rises. Our tablets combine two well-researched principles with potential complementary effects via different pathways – nattokinase from traditional natto fermentation and vitamin D3 (cholecalciferol) in a physiological dosage, all from purely ecological sources.

Our 100% natural tablets are – as always – made exclusively from non-GMO soybeans originally grown in Japan, then carefully formed into small tablets in Europe – without any capsule shell. New to the formula is the addition of vitamin D3 (cholecalciferol) in an optimal dosage for the body.

Gentle fermentation and maximum enzyme activity: The beans are fermented with Bacillus subtilis natto and then freeze-dried. This fully preserves the natural enzyme activity of approx. 1400–1600 FU of nattokinase per tablet. We strictly avoid any additives.

Rooted in Japanese daily life: In Japan, natto is much more than just a food. It is considered a classic breakfast dish – usually served fresh over rice – and is an essential part of many households. The centuries-old fermentation tradition has made natto a symbol of health and longevity to this day.

Scientifically supported traditional knowledge: Recent reviews confirm popular belief. In Japan, natto is even called a “secret for longevity” because it is rich in bioactive compounds – especially nattokinase with its thrombolytic and blood pressure-lowering properties.

Practical packaging: For quality and safety reasons, we ship our tablets in resealable plastic containers – glass containers are unsuitable for the special pressure seal.

Enjoy a fully natural product that can support your well-being in many ways – from heart health to overall vitality!

Effects

  • Heart & Vessels:

    Nattokinase is an enzyme derived from fermented soybeans (natto). In naturopathy, it has long been valued for its supportive effects on the cardiovascular system. Studies suggest that nattokinase may help regulate blood pressure naturally and maintain the elasticity of blood vessels. Combined with vitamin D3, which supports the normal function of the heart and blood vessels, it creates a meaningful synergy for healthy circulation.
  • Natural “blood thinner”:

    Nattokinase has fibrinolytic properties (2, 3, 4, 38): it can dissolve fibrin, a key component of blood clots. This makes the enzyme act like a natural blood thinner – but without the risks of synthetic anticoagulants. Health-conscious individuals use nattokinase preventively to support normal blood circulation. The natural composition from natto fermentation also provides valuable accompanying compounds: vitamin K2 (MK-7), which helps maintain normal blood vessels, plus soy isoflavones and probiotic cultures.
  • Vitamin D3 – support for immunity, bones, and muscles:

    Vitamin D3 fulfills numerous vital functions in the body. It contributes to normal immune system function and thus supports the body’s natural defense against pathogens. It is also essential for maintaining healthy bones and teeth – partly because it enables the normal absorption and utilization of calcium and phosphorus and contributes to balanced calcium levels in the blood. Vitamin D3 also supports normal muscle function and plays a role in cell division – a key biological process essential for growth and regeneration. Especially during months with little sun or when the body’s own production is limited, targeted supplementation with vitamin D3 can help meet needs and promote balance.
  • Nattokinase against spike proteins:

    A Japanese study 'Degrading effect of nattokinase on the spike protein of SARS-CoV-2' suggests that nattokinase may even break down harmful spike proteins (such as those found in the body after mRNA vaccinations). This highlights the enzyme’s significant health potential.

Dosage

Recommended intake

  • Take 2 tablets daily with 200 ml of water
  • For best results, we recommend continuous use for at least 3 months to allow the full effect to develop
  • Not suitable for individuals taking anticoagulant medications (blood thinners)
  • Discontinue use at least 2 weeks before planned surgery

Food supplement

Do not exceed the recommended daily intake. Food supplements are not a substitute for a balanced and varied diet. Keep out of reach of children.

Storage

Store in a cool, dry place

Shelf life

Once opened, consume the tablets within 60 days

Ingredients

Per tablet:

2.5 g NATTO (without additives) – with 25 µg natural vitamin D3

Content:

  • Vitamins: B1, B5, B6, B9, K2, D3 (from marine algae), K2 MK7
  • Minerals: phosphorus, potassium, magnesium, iron, calcium
  • Other bioactive compounds: nattokinase (a fibrinolytic enzyme), spermidine, soy isoflavones, probiotic bacteria, prebiotic fibers, PQQ

Approx. 120 tablets

INGREDIENTS

Ingredient per tablet:

2.5 g NATTO (without additives) - with 25 µg natural vitamin D3

Content:

  • Vitamins: B1, B5, B6, B9, K2, D3 (from marine algae), K2 MK7
  • Minerals: Phosphorus, Potassium, Magnesium, Iron, Calcium
  • Other bioactive substances: Nattokinase (a fibrinolytic enzyme), Spermidine, Soy Isoflavones, Probiotic Bacteria, Prebiotic Fiber, PQQ

approx. 120 tablets

Ingredient / 1 tablet
% NRV*
Nattokinase approx. 1400-1600 FU -**
Vitamin D3 25 µg (1000 IU) -**
Vitamin K2MK7 37 µg 49%*
Vitamin B9 4.92 µg 24.69%*
Phosphorus 9.44 µg 13.59%*
Iron 0.06 µg 0.5%*

* NRV = Nutrient Reference Value for daily intake according to Regulation (EU) No. 1169/2011
** of the nutrient reference amount
*** no reference available

one hundred percent
vegan
non GMO
gluten free
fructose free
lactose free
pellet
probiotic
without additives
handmade with love
FAQ

Our nattokinase is made from soybeans grown in Japan and then gently freeze-dried to preserve maximum enzyme activity.

The beans are non-GMO and come from controlled cultivation. They are fermented exclusively with Bacillus subtilis natto.

Natto itself is a traditional Japanese national dish that has been appreciated for centuries as a nutrient-dense "samurai breakfast".

Each tablet delivers approx. 2.5 g Natural Natto - 100% natural, with no additives or fillers, so in addition to the enzyme nattokinase it also retains vitamin B9, spermidine, soy isoflavones, probiotic bacteria, phosphorus and iron.

The result is a pure, high-quality product that meets natural and quality standards without compromise.

As we age, blood vessel elasticity may decrease, blood can become more viscous, and blood pressure can change. Combining nattokinase and vitamin D3 brings together two extensively studied substances whose mechanisms may complement each other in different ways.

Nattokinase is an enzyme obtained through the traditional fermentation of soybeans (natto). Research explores its role in the natural regulation of fibrin and the flow properties of blood.

Vitamin D3 (cholecalciferol) is known to help maintain normal bones, normal muscle function, and a normal immune system. It is also widely studied in the context of cardiovascular processes, including blood pressure regulation and inflammation.

Our tablets combine both ingredients on a natural basis:

  • Nattokinase from traditional natto fermentation
  • Vitamin D3 in a physiologically appropriate dosage


This well-balanced combination can be a targeted addition to a health-conscious lifestyle.

The recommended daily amount is two tablets. For optimal absorption, take the tablets on an empty stomach, at least 30 minutes before or 2 hours after a meal, each time with plenty of water. Morning or evening does not matter. Choose a time you can maintain long term. Because effects observed in studies appear only with continuous use over several weeks, a minimum course of three months is recommended.

Our nattokinase tablets are 100% free from additives. Because we intentionally avoid binders, oils, and other stabilizers, the tablets are more brittle than conventional products.

The original soybeans from Japan are naturally low in moisture and do not contain a natural binding agent. Transport can also involve strong vibrations that we cannot control. As a result, some tablets in the bottle may break.

To keep the risk as low as possible, we continuously check tablet hardness and fill the product into sturdy plastic bottles with a special closure. Despite these measures, a small proportion of crumbly tablets cannot be completely avoided. Natural purity takes priority over absolute break resistance.

What matters is this: the efficacy remains unchanged. The enzyme nattokinase and accompanying compounds such as spermidine, vitamin B9, isoflavones, probiotic cultures, phosphorus, and iron are just as active in the powder as in an intact tablet.

If a tablet has broken, simply stir a level teaspoon of the powder — equivalent to one tablet — into a glass of water.

Cardiovascular diseases — especially ischemic heart disease — remain the world’s number one cause of death and are often underestimated according to WHO analyses. Healthy blood flow and resilient vessels are therefore essential. This is where our natto tablet comes in, naturally and on several levels:

  • Natural blood flow support The enzyme nattokinase has fibrinolytic activity. It helps break down excess fibrin, supports normal blood fluidity, and may therefore promote healthy blood pressure and flexible arteries. Many health-conscious people use nattokinase preventively as a "plant-based blood-thinning" option.
  • Comprehensive nutrient complex from natto fermentation Gentle fermentation preserves all relevant accompanying compounds, including
  • vitamin B9 (folate) , which contributes to normal homocysteine metabolism
  • the polyamine spermidine , which supports cell-protective autophagy processes
  • soy isoflavones with antioxidant and inflammation-modulating properties
  • probiotic Bacillus subtilis natto cultures , which support a stable gut microbiome, as well as
  • the minerals phosphorus (energy metabolism) and iron (oxygen transport)

Vitamin D3 is a versatile helper for the immune system, bones, and muscles. It supports normal immune function and the body’s natural defenses. It also plays an important role in maintaining strong bones and healthy teeth by aiding the absorption and utilization of calcium and phosphorus and supporting a balanced blood calcium level. Muscles also benefit from adequate vitamin D3. In addition, it is involved in cell division, a fundamental process for growth and regeneration. Especially when sunlight is limited or the body’s own synthesis is reduced, targeted vitamin D3 supplementation can help cover needs and maintain well-being.

The result is a synergy of enzymes, micronutrients, and probiotics that holistically support the heart, blood vessels, and metabolism.

  • Current research on spike proteins A Japanese laboratory study suggests that nattokinase may also break down SARS-CoV-2 spike proteins. Although this finding is still at an early research stage, it highlights the enzyme’s broad potential.
  • Pure and additive-free Our tablets are made from GMO-free Japanese soybeans only, with no fillers, binders, or flow agents. Manufacturing in Germany ensures consistent quality and high enzyme activity.
  • Easy long-term use For optimal results, we recommend continuous intake for at least three months so the full profile — from fibrin regulation to micronutrient balance — can unfold.

Authentic ratings and customer testimonials are available right on each product page. Simply scroll down or click the “Reviews” tab at the top to explore honest feedback and personal experiences with our products.

To preserve the quality, stability, and efficacy of Heilnatura dietary supplements over time, store them in a cool, dry place away from light. Direct sunlight, high humidity, and temperatures above 25 °C can affect sensitive ingredients. Keep products in a cabinet or drawer away from heat sources such as radiators or sunny windows. Bathrooms are generally not suitable because of higher humidity.

Heilnatura combines traditional natural medicine with modern quality criteria, which is how we ensure purity and safety:

  • In-house manufacturing in Europe
    We develop and produce our formulas ourselves to maintain full control over raw materials and processes.

  • Certified filling to HACCP & GMP / ISO 22000:2018
    Every production step follows strict hygiene and control requirements.

  • Contaminant-free storage
    Finished products are stored in special, contaminant-free containers.

  • Eco-friendly shipping
    Your order arrives in mineral-oil-free cartons. Sustainable and safe.

Our name “Heilnatura” stands for the connection between healing and nature. We draw on nature’s power, verified by state-of-the-art standards. For more about our values and approach, visit our philosophy page.

Our supplements are generally well tolerated and can also be taken alongside medications. If you use medicines on an ongoing basis, we recommend:

  • Doctor or pharmacist consultation: clarify potential interactions
  • Individual risk factors: discuss any pre-existing conditions or specific drugs in detail, for example anticoagulants or heart medications.

Our products are generally well tolerated because they are based on natural ingredients. However, people who are pregnant or nursing, as well as anyone with known allergies or medical conditions, should consult a doctor or qualified practitioner before use to rule out individual intolerances or contraindications. If you are unsure in general or have questions about tolerability, we also recommend seeking advice before taking.

We ship every order climate neutrally with DHL GoGreen. Within Germany your parcel usually arrives in 1 to 3 business days. Delivery to EU countries takes 3 to 10 business days depending on the destination.

The flat shipping rate is 4.90 € (DE) and is waived from 75 € order value.

For Austria, France, Belgium, and Italy the cost is 6.90 €. Other EU countries: 9.90 €. Switzerland and Liechtenstein: 15.90 €. The shipping fee is waived from 150 € order value.

All shipments are trackable, and orders placed on business days by 12 pm are usually handed over to DHL the same day.

Video
More Than Just Standard

Made with love by hand

While many companies focus on mass production and machines, we take a different approach: Our Nattokinase tablets are made entirely by hand – from carefully fermented organic soybeans, sourced directly from Japan.

Purity, diversity, and trust – much more than just Nattokinase

In addition to nattokinase, our tablets contain a natural spectrum of valuable nutrients from fermented soybeans (natto) – including Vitamin K2 (MK-7), Vitamin B9 (folic acid), spermidine, soy isoflavones, probiotic bacteria, and naturally occurring phosphorus and iron. Production is done by hand under hygienically controlled conditions. The nattokinase extract is gently freeze-dried to preserve its delicate enzyme activity – without capsule shells and without artificial additives. For consistently high product quality, every batch is additionally tested by an independent laboratory.

We rely on authentic natto

Our nattokinase does not come from industrially produced isolates but from genuine fermented natto – made with the original Bacillus subtilis natto used in Japan for generations.

Product Details
Production Own production in Europe
Filling in the EU according to HACCP, GMP / ISO 22000:2018.
Storage of finished products packaged in plastic jars in pollutant-free special containers
Shipping in mineral oil-free cartons
Tablets This format requires no capsule shell, gelatin, or synthetic coatings. You get only what truly matters: pure active ingredients in concentrated form – natural and straightforward.
Packaging Our plastic jars are not chosen at random – the special pressure-seal closure that ensures freshness and product safety only works with plastic, not glass
Removing the label for reusing the plastic jar To reuse the plastic jar, soak it in hot water for 5 minutes to remove the label easily. Any adhesive residue can be rubbed off with some dish soap.
Heilnatura

Our philosophy. 

At the heart of Heilnatura lies a simple yet profound belief: nature is the key to our health and wellbeing. Inspired by the ancient wisdom that nature is the greatest healer, we set out to harness this power in its purest form.

"Heilnatura"—a fusion of "healing" and "nature"—is not just our name; it reflects our commitment to uniting the art of naturopathy with modern science.

Learn more about Heilnatura

Reviews
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Average rating of 4.9 out of 5 stars


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1 - 10 of 93 reviews

2 July 2025 12:17

Review with rating of 5 out of 5 stars

Bewertung von Ursula P.

Ich hatte vor einiger Zeit einen Schlaganfall im Rückenmark. Deswegen bin ich auf Blutverdünner angewiesen. Als ich das Video von Dr. Bodo Schiffmann gesehen habe, hat mich das so überzeugt, dass ich beschlossen habe, Nattokinase auszuprobieren und meinen anderen Blutverdünner abzusetzen. Da ich es noch nicht lange einnehme, kann ich noch nichts genaues dazu sagen. Aber bisher geht es mir sehr gut.

2 July 2025 08:23

Review with rating of 5 out of 5 stars

Herr

Hallo liebes Heilnatura Team, meine Frau und ich nehmen Ihre Produkte Spike und Spike forte schon seit 4.2024 auch nr plus. Meine Frau wurde 3mal mit der corona Injektion gespritzt und hatte danach Entzündungen in den Gelenken underschöpfungszustände die sehr schlimm waren. Ich muss noch eines dazu sagen.Seitdem sie eure und dr.schiffmans Produkte nimmt hat sich ihr Zustand sehr gebessert. Auch diese zwei neuen Produkte sind sehr gut. Ich habe die Seite von Heilnatura auch an viele andere weitergeleitet die durch diese Injektionen auch Impfung genannt erkrankt sind und von Ärzten im Stich gelassen werden. Ich danke euch und Dr. Schiffmann daß ihr den Menschen helft!!!!!!! Lg

1 July 2025 10:30

Review with rating of 5 out of 5 stars

Empfehlung

Reibungslose Bestellung und Lieferung. Wirkt sich positiv auf meine Gesundheit aus, Blutwerte wieder gut

17 June 2025 13:21

Review with rating of 5 out of 5 stars

Bewertung von Elisabeth V.

Ich hatte einen Herzinfarkt und nehme seit dem Nattokinase. Ich bin sehr zufrieden damit und schätze die natürlichen Presslinge.

17 June 2025 07:12

Review with rating of 4 out of 5 stars

Versuch zur Blutdrucksenkung

Nehme es seit 14Tagen und habe nach Rücksprache mit meinem Arzt meine Blutdrucksenker abgesetzt. Bis jetzt, bleiben meine Werte stabil. Hoffe es bleibt so durch die Nattokinase. Vernünftige Ernährung und Sport vorausgesetzt. Ich bin gespannt. Leider zerfallen viele Tabletten durch den Transport. 😔

12 June 2025 15:51

Review with rating of 4 out of 5 stars

Natto + D3

Die Bestellung wurde super schnell und gut verarbeitet und versendet. Die Dosierung mit D3 gefällt uns sehr gut.

13 May 2025 06:28

Review with rating of 5 out of 5 stars

Bewertung von Brigitte S.

Ich hatte Herzrhythmusstörungen und wurde mit Arzneimitteln behandelt. Meine Nebenwirkungen waren so unbeschreiblich schlimm, dass ich mich dagegen entschieden habe. Nun nehme ich Nattokinase und habe einen Blutdruck wie in jungen Jahren 😀Danke Dr. Schiffmann, habe gerade wieder nachbestellt und mein Schatz nimmt sie jetzt auch, er hatte vor 10 Jahren bereits Herzprobleme. Keine Nebenwirkungen ❣️

15 April 2025 10:13

Review with rating of 4 out of 5 stars

Bewertung von Stefanie S.

Top Produkt, wie beschrieben. Gut verträglich...warte jetzt noch meine Blutwerte ab, ob sich dort auch was getan hat.

10 March 2025 08:11

Review with rating of 5 out of 5 stars

Nattokinase mit D3

Es tut mir sehr gut! Herzlichen Dank Und viele Grüße!

11 February 2025 12:04

Review with rating of 5 out of 5 stars

Nattokinase

Sehr gut und ich empfehle es auch anderen Personen.