Nattokinase is an enzyme that breaks down proteins and is derived from the traditional Japanese dish natto.This active ingredient is produced when soybeans are fermented using a bacterial culture (Bacillus subtilis).It is said to have positive effects on cardiovascular diseases and to prevent clogging of the arteries.Consuming this enzyme is said to lower blood pressure and improve blood flow.Nattokinase is said to reduce the risk of thrombosis, stroke and heart attack.It is excellent for preventive use, but in some cases it can also replace pharmaceutical blood thinners.Many sufferers are convinced of the effectiveness of the dietary supplement.In the meantime, however, there are a large number of corresponding products on the market and not all of them deliver what they promise.As a layman, you are often overwhelmed by the question of which product is really worth the money and whether a high price is always justified.Reason enough for us to take a critical look at the various preparations and compare them with each other.In the following test you will find out which nattokinase products help to lower blood pressure.The gold medal in our test was secured by the nattokinase preparation from the well-known manufacturer Green Nutrition.And rightly so: the capsules consist of natural ingredients and thus ensure generally very good tolerability.The production under the strict German quality and safety standards also convinced us.There are 180 individual capsules in a product packaging, which according to the manufacturer are sufficient for an intake period of approx. 6 months.According to the reviews, taking the capsules themselves is uncomplicated and problem-free and the preparations themselves are therefore easy to swallow.In other product reviews, we were also able to read that the effect sets in quickly and gently and that there were no side effects.In addition, the capsules appear to be of high quality and the general product and processing quality is also very good, which is why we want to award the full five stars to this preparation.On top of that, Green Nutrition offers an optimal price-performance ratio.The product is not only a price winner, you can also secure 1 or 2 cans for free with savings offers.In our nattokinase test, the preparation in powder form from Redfood just missed the gold medal.One pack contains 100 grams of powder, 100 mg each contain 2000 FU of active ingredient.One pack lasts about 1000 days.The preparation is free of chemical additives and therefore ideal for allergy sufferers and vegans.The manufacturer dispenses with unnecessary additives and fillers or genetically modified organisms.The strict quality assurance measures with recognized test methods, the optimal product composition and the excellent compatibility speak for themselves.The natural blood thinner is well received by consumers.Customers appreciate the high effectiveness and good tolerability of this product.Many users report that their blood pressure has been lowered over the long term and has returned to normal.With the nattokinase powder from Redfood, it is apparently often possible to do without conventional blood thinners, which are often associated with numerous side effects.The nattokinase capsules, also from Redfood, land with us in third place - the deserved bronze medal.One pack contains 290 capsules, each with 2000 FU active ingredient.Since the capsules are gastric juice-resistant, they can be taken at any time.The company does not use any additives or fillers.The product is free from gluten, lactose and genetic engineering.The vegan capsules are produced exclusively in Germany.In our opinion, the price-performance ratio is excellent.In this case, too, the customer reviews are exclusively positive.In the product reviews we researched, the users were enthusiastic about the rapid, blood pressure-regulating effect and the side-effect-free, gentle mode of action.Conclusion: Like the company's powder, the capsules are absolutely convincing.A well deserved third place!The nattokinase capsules from the drug and dietary supplement manufacturer Sanuvit just missed out on the precious metal ranks.Nevertheless, this preparation is also characterized by a high level of effectiveness and a high level of tolerability guaranteed by the herbal recipe, which of course we rate positively.There are 60 capsules in a can, which are sufficient for a period of about one month.Accordingly, one of the capsules should be taken daily with sufficient liquid.Dosage and intake recommendations can also be found on the package insert or the manufacturer's website.Just like the first 3 places, this is a highly effective, natural and high-quality product made in Germany, which is why we are awarding four stars and a good fourth place at this point.The nattokinase product from the "fair&pure" brand secured fifth place in our large product comparison.Here, the also purely herbal recipe of the supplement is particularly convincing.In addition, it is a high-quality product "made in Germany".Taking this preparation is as easy as it is easy to integrate into everyday life: according to the manufacturer, only two of the capsules should be taken with sufficient liquid, ideally with meals.However, in order to achieve a lasting positive effect, it should be taken for at least 30 days.In our test, the capsules scored high in terms of effectiveness and tolerability, and other customers also confirmed the quick and effective onset of action in their customer reviews.Overall, we come to a rating that jumps out at fifth place and four stars for this particular preparation.Doctor's Best is one of the market leaders among nattokinase products.Nevertheless, the product "only" received sixth place in our comparison test.The dietary supplement is manufactured in one of the most well-known production laboratories in Japan and contains 270 capsules.This preparation is also free of additives and genetically modified organisms.The capsule shell is modified cellulose.Therefore, the capsules are only suitable for vegetarians, not for vegans.Basically, the preparation has a high quality and is well tolerated.However, potential customers should know that the capsules contain magnesium stearate.Although this is a substance that is harmless to health, the absorption of the active ingredients from nattokinase is somewhat impaired.In our big nattokinase test, the Vit4ever capsules came in seventh.Each can contains 180 high-dose capsules, each with 2000 FU of active ingredient.The preparation is vegan and without additives.The capsules contain neither magnesium stearate nor flavors, colorings, stabilizers or gelatin.The product from Vit4ever scores with a fair price-performance ratio and the production in certified EU companies.The dietary supplement has been tested under strict conditions in the laboratory.Although the natural ingredients and the good quality of the nattokinase preparation appeal to us, it is only enough for seventh place.This is due to some negative customer reviews.Some users complain about the unpleasant smell and taste of the product.In addition, the dietary supplement did not have an effect on all users.Ezyleaf Nutrition launched Nattokinase Capsules, which received eighth place in our ranking.One can contains 120 vegan capsules.The manufacturer advertises that it is free from artificial fillers, binders or other animal products.The product is also free from genetically modified ingredients.Taking the capsules is said to promote cardiovascular health.Ezyleaf's Nattokinase supplement is manufactured in the UK.The capsules are gelatin-free and are meant to be easy to swallow.Although the customer ratings for this product are consistently positive, there are very few user reviews to date.Therefore, no precise statement can be made about user satisfaction with the product.Effective Nature’s nattokinase capsules came in ninth.One can contains 120 capsules, each containing 100 mg of the enzyme (2000 FU) and free from vitamin K, gluten and lactose.The manufacturer advertises that it is highly effective and well tolerated.The product has been purified of vitamin K, as this nutrient has an effective blood-clotting effect.The vegan capsules are ideal for vegans and allergy sufferers.The production takes place under strict quality standards in Switzerland.One capsule daily is said to effectively protect the cardiovascular system and reduce the risk of thrombosis and strokes.Unfortunately, there are hardly any reviews of this nattokinase product.We only came across 3 reviews.However, these were not particularly meaningful.Warnke's nattokinase capsules came tenth in our comparison test.The product was manufactured under strict German quality guidelines.A can contains a total of 60 capsules.Unfortunately, in the course of our research, we had to find out that the product contains ingredients such as the filler microcrystalline cellulose.Although this filler is generally permitted and not harmful to health, it is suspected of having negative effects on the intestinal mucosa.We took a close look at the customer reviews for Warnke's Nattokinase product.Although there are many enthusiastic customers, one customer also complains about side effects.The user reports nausea after taking the product and poor tolerability.Netzeband's nattokinase capsules came eleventh in our comparison test.The dosage form is again in capsules, each of which contains 100 mg of the pure active ingredient.A can contains a total of 90 capsules.We like the fact that the preparation does not contain any preservatives, flavorings or colorings.Salt, yeast, soy, milk, wheat, gluten and animal ingredients are also not included in the dietary supplement.We think it's good value for money and we like the fact that it's made from non-GMO soy.The capsules are said to have a blood-thinning effect and normalize blood pressure.However, there are hardly any meaningful customer reviews for this preparation.In addition, some of the testimonials we researched were negative in tone, with some customers speaking of mild side effects (feelings of restlessness, digestive problems) or ineffectiveness.Hence only two stars and 11th place.Health+ capsules came second to last in our ranking.The capsules are highly dosed and, according to the manufacturer, are suitable for an all-encompassing nutrient supply with the active ingredient nattokinase.The preparation is made in Germany and contains 120 capsules.It has been manufactured taking into account the highest quality standards and without any additives.Although the manufacturer states that it does not use fillers, we were able to determine during our research that the filler microcrystalline cellulose is still included.Although many customers are satisfied with Health+'s nattokinase capsules, there are also some negative reviews.For example, a consumer reports that the preparation has an unpleasant taste and smell and therefore cannot recommend the capsules 100%.In general, we have also noticed that there have been relatively few customer reports on this product so far.The nattokinase dietary supplement from BioProphyl took last place in our comparison test and thus clearly fell behind the test winners.Although the manufacturer advertises a good price-performance ratio, we have to disagree.A can contains just 60 capsules.With the preparation, consumers can get by for just 2 months at a price of 30 euros.Our predecessor also offers a can for about 30 euros - but you get 120 capsules for it.A nattokinase capsule from the manufacturer BioProphyl has a concentration of 2,000 FU.The preparation is made on the basis of non-genetically modified soy.The dietary supplement is intended to stimulate blood circulation and cause blood thinning.Unfortunately, there is not a single customer rating for this product that could provide information about the effect and general tolerability.There is also a point deduction for the vegetarian capsule shell.Nattokinase is found in the traditional Japanese soybean dish natto and is considered a natural blood thinner.In order to obtain the valuable enzyme, the soybeans are boiled and then fermented using a specific strain of bacteria (Bacillus subtilis).It consists of a total of 275 amino acids and is formed by the bacteria in order to be able to metabolize the soybeans.The enzyme has fibrinolytic properties.Nattokinase is therefore able to dissolve blood clots and therefore has a blood-thinning effect.To prevent cardiovascular problems, the natural blood thinner is taken in the form of dietary supplements.Nattokinase is an enzyme from the protease enzyme group.This group of enzymes also includes the two endogenous enzymes thrombin and plasmin.Thrombin causes the blood to clot and makes the "glue" fibrin to glue wounds together.Unfortunately, the enzyme is also able to clog blood vessels, which can lead to thrombosis, heart attacks or strokes.In contrast to thrombin, plasmin dissolves the blood clot or the fibrin it contains.Similar to plasmin, the enzyme also has fibrinolytic properties.However, the enzyme not only helps to dissolve blood clots, but also indirectly has a blood-thinning effect.When metabolized, two extremely active substances are created that have a blood pressure-lowering effect and at the same time activate a certain substance with fibrinolytic properties.The nattokinase supplement should be taken once a day before a meal with a glass of water.The capsule should take effect just half an hour after ingestion.The effects can last for up to eight hours.The capsules can be taken safely for a week or longer.Incidentally, the official dosage recommendation for the active ingredient is 2,000 FU per day.This corresponds to a dosage of 100 mg of the pure active ingredient.As part of our comparison test, we took a close look at the various nattokinase preparations.Our four main criteria included the effect, the price, the customer ratings and the general tolerability.Factors such as production, quality standards, smell, taste and packaging were also important to us.We also looked at studies and reports from independent editors on this topic.Not all nattokinase preparations have achieved the desired effect.In some cases, users report the ineffectiveness of certain products.In the course of our research, we found that some preparations actually contain certain ingredients that can inhibit the effect of the enzyme.This includes, for example, vitamin K or microcellulose.Whether the capsules achieve the desired effect depends largely on the ingredients.In our comparison test, we discovered nattokinase preparations like our test winner from Green Nutrition, which have a high-quality composition of ingredients and completely do without unnecessary fillers and additives.We were able to determine some large price differences between the individual nattokinase preparations.On average, a preparation costs between 30 and 60 euros.How long you finally get by with the respective can is very different.A high price does not always equate to high quality ingredients and maximum effects.Sometimes good products can also be found at a lower price.However, if the preparation contains only natural and high-quality ingredients, a higher price is also justified.One of our main criteria was the various customer ratings for the individual nattokinase products.Many users were completely satisfied with the preparations.Other ratings were neutral.In the course of our research, we occasionally came across negative customer reviews.Of course, these testimonials are subjective opinions. However, if many people reported the same side effects, it is worth taking a closer look.We believe that taking a closer look at the ingredients of nattokinase is essential for a reliable interpretation of customer reviews.Of course, the tolerability of nattokinase played an important role in our assessment.In general, the individual preparations very rarely caused side effects in users.However, one customer reported that the supplement made him feel nauseous.This is most likely due to the idiosyncratic smell and taste of some preparations.Those who are sensitive to specific tastes and smells could easily react with nausea.However, there are also nattokinase products that smell more neutral.Of course, when such testimonials come up, we take a very close look at the ingredients and the manufacturing process.In traditional Japanese medicine, the dish natto is considered a miracle cure for tiredness and cardiovascular problems.Nattokinase has the ability to break down proteins and can therefore be used for numerous medicinal purposes.The dietary supplement counteracts high blood pressure and supports normal blood pressure.Just like the body's enzyme plasmin, it helps dissolve fibrin and helps the body clean blood vessels.Taking the capsules also stimulates the production of plasmin and other important substances.This causes the blood clots to break up.The medical benefits also include increasing high-density lipoproteins, which is the good cholesterol.This makes the nattokinase agent ideal for the prevention of cardiovascular diseases.In some cases, it can also replace conventional medication.Many patients are dependent on blood thinners due to thrombosis.However, prescribed pharmaceutical medications can often cause significant side effects.For patients struggling with severe side effects, the natural blood thinner nattokinase can be a worthwhile alternative.If you have to take blood thinners due to a thrombosis or an increased risk of a stroke and want to switch to nattokinase, you should definitely discuss this with your doctor beforehand.Caution is also advised if the dietary supplement is to be taken with other blood-thinning medications.This can have negative side effects.However, the supplement can always be taken preventively to strengthen cardiovascular health.As already mentioned, in the course of researching nattokinase, we took a closer look at the various experiences and ratings of users.The customer reviews were mostly positive, although there were also a few negative reviews.If there were negative reports about a preparation, then mostly the ineffectiveness or the idiosyncratic smell and taste were complained about.We noticed positively that the users rarely reported side effects.In our opinion, it always depends on the respective nattokinase preparation and its ingredients.The processing and manufacture of the product also plays an important role.If high-quality active ingredients are included that are not inhibited by unnecessary additives and fillers and the product has been manufactured according to strict quality guidelines, the preparation should also develop its maximum effect.Unfortunately, the Stiftung Warentest has not yet published a detailed report on the subject of nattokinase, which means that we cannot make a statement here.However, a few other independent online newsrooms have published extensive reviews and reports on the supplement.Among other things, the editors have dealt with the active ingredients, tolerability, dosage and absorption in the body.The medical journalists largely confirm the positive effect of the enzyme on cardiovascular health.Cardiovascular drugs such as ACE inhibitors, beta-blockers, and calcium channel blockers are commonly prescribed to support normal blood pressure.Depending on the individual medical situation, either these specific drugs or nattokinase may make more sense.An alternative for dissolving clots in the blood may be Marcumar or Pradaxa.To increase high-density lipoprotein levels, anacetrapib is also recommended.However, as a natural dietary supplement with a wide range of medical benefits, there is currently no alternative to nattokinase.The blood-thinning properties of nattokinase have been demonstrated in animal studies, in in-vitro experiments, but also in clinical studies.Researchers were able to confirm that the enzyme dissolves blood clots, thins blood and provides useful support for the cardiovascular system.In a study from 1990, four nattokinase capsules with the pure active ingredient of 2,000 FU were enough to dissolve a thrombosis in the large leg vein of dogs within just five hours.In another study conducted in 1995 on rats with thrombosis, the scientists were able to determine a blood clot-dissolving effect.In 62% of the cases, the blood flow in the aorta could be restored.Many manufacturers indicate the nattokinase content of their capsule in FU.FU means Fibronolytic Unit and stands for the activity of the enzymes.The higher this value, the more active and effective this enzyme is.In order to achieve an optimal effect, it is recommended to take two thousand Fibronolytic Units a day.A capsule often already contains these 2,000 FU - so one capsule already covers the daily requirement.However, some manufacturers also produce capsules with 1,000 FU each.Depending on the manufacturer, one to two capsules should be taken per day.Although higher doses have usually been administered in studies, a dose of 2,000 FU per day is completely sufficient if you want to use the dietary supplement preventively.However, if you are very sensitive to certain active ingredients, it may also be worth taking a lower dosage of nattokinase.There are now a large number of nattokinase preparations on the market.As a layman, you are quickly overwhelmed with the question of which remedy is really worth the money and whether you actually always have to pay the highest price.There are a total of six criteria that you should pay attention to when making a purchase.Typically, capsules should have a concentration of 2,000 FU with an amount of 100 mg nattokinase.If this FU value drops and the salary stays the same, you should be skeptical.The preparation should also be manufactured free of additives and genetic engineering.Also make sure that the capsules are enteric-coated and contain no soy residue or vitamin K1 and vitamin K2.If you eat vegan, the capsule material is also decisive for the purchase.We recommend buying a nattokinase product with cellulose, as some manufacturers also use gelatine to make the capsule shell.There are actually no known side effects associated with the enzyme.However, if the blood thinning is too intensive or occurs at the wrong time, this could lead to problems.However, blood that is too thin can only be caused by an extreme overdose of nattokinase or in combination with the intake of blood-thinning foods or medication.In extreme cases, blood that is too thin can lead to internal bleeding.If you are about to have a medical operation, it is also not advisable to take it.Bleeding can be significantly more severe through open wounds.As a rule of thumb, the dietary supplement should never be combined with other blood-thinning foods or medications and the individual medical situation should always be clarified with the doctor treating you beforehand.If the preparation contains soy residues, it is not suitable for allergy sufferers, pregnant women and children.This is the case with the so-called vector nattokinase.But traces of soy can also be found in other preparations.If you are dependent on blood-thinning medication or vitamin K, then it is also not advisable to take it.Those wishing to take nattokinase instead of traditionally prescribed medications should discuss this option with their doctor beforehand.A large selection of nattokinase preparations can be found in online shops or on Amazon.Anyone who buys the product on the Internet has the advantage of being able to compare prices more easily.However, if you prefer to shop in stationary stores and would like personal advice, you can also purchase the dietary supplement in well-stocked organic shops or in pharmacies.Regardless of whether you shop online or in a brick-and-mortar store, the top priority is always to shop from trustworthy retailers.Therefore, always take a look at the various customer reviews in advance.If these are largely positive, it is also a trustworthy manufacturer of nattokinase.The average price is around 45 euros.Depending on the manufacturer, the costs can vary between 30 and 60 euros.When comparing prices, be sure to pay attention to the actual nattokinase content, as some manufacturers combine the dietary supplement with other enzymes such as bromelain.In most cases, however, the articles contain pure nattokinase apart from the necessary release and coating agents.Since nattokinase is produced by the fermentation process of soybeans, it is in principle also possible to produce the enzyme at home.However, one must note that natto has a very special and characteristic smell.In addition, you do not get the pure active ingredient, but also residues from soybeans and other substances such as vitamin K, which could hinder absorption.To make the nattokinase yourself, you need to get a natto starter culture and a heat box.The soybeans must be washed thoroughly and soaked overnight.The next day, the beans are boiled in hot water and then they should be simmered on a low heat for 6 to 7 hours.Skim off the foam regularly.Then the soybeans are placed in the warming box and mixed with the natto starter culture.The popular dietary supplement is now available in various dosage forms.Whether a capsule or a tablet is better for ingestion depends on your personal preferences.If a good price-performance ratio is offered, you can of course strike regardless of the dosage form.The advantage of tablets is the rapid absorption of nattokinase in the body.Capsules, on the other hand, are easier to add to smoothies, cereals and drinks and are easier to swallow.Basically, we recommend taking it in capsule form because of the good dosage options and the neutral taste.If your job requires you to fly a lot or drive a car, you may be familiar with the situation: sitting still for long periods often leads to thrombosis.However, this problem is easily remedied by taking nattokinase.Take the dietary supplement about two hours before and six hours after the flight / drive and cases of thrombosis are a thing of the past.The blood-thinning effect of the nattokinase capsules ensures that the vessels are sufficiently supplied with blood when sitting still.This effect was even proven in a study from 2003.In the course of our research, we kept coming across the same questions from consumers.In the following we would like to give you an overview of the most important questions and the corresponding answers about the product nattokinase.Vector Nattokinase is the evolved and more potent form of Nattokinase.The effect of the improved formula should last eight to ten hours longer.However, caution is advised if you are pregnant or have a soy allergy.Children should not take the product either.In order to achieve the maximum effect, it is recommended to take one nattokinase capsule with 2,000 FU or 100 mg of the pure active ingredient per day.Follow the manufacturer's consumption recommendations.In some cases, two capsules must be taken.