Doctor Life Nattokinase & K2 — 60 capsules

Pack size: 60 capsules

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Doctor Life

Nattokinase & K2

K2 MK-7 • Nattokinase 2000 FU

81,99 zł

Supports normal blood clotting
Helps maintain healthy bones
Combines two ingredients with distinct biological roles

Overview

Two ingredients with distinct, complementary biological roles. Nattokinase is an enzyme produced during natto fermentation by Bacillus subtilis natto and has been studied in humans in relation to fibrinolysis and blood clotting parameters. Vitamin K2 MK-7 supports normal blood clotting and helps maintain healthy bones.

At the heart of the formula / Nattokinase & K2

Thoughtful support. Clear purpose.

01Supports normal blood clotting
02Helps maintain healthy bones
03Combines two ingredients with distinct biological roles
04Nattokinase activity measured in FU
05Provides a nattokinase activity level used in human clinical studies
06An amount of MK-7 examined in a randomized trial

Doctor Life / 01

Nattokinase & K2

Made for your daily routine.

Nattokinase is described by enzyme activity as well as weight. The formula states 2,000 fibrinolytic units (FU), an activity used in certain human trials.

The formula also provides 100 mcg of vitamin K2 as MK-7 from Bacillus subtilis natto fermentation. It comes in a plant-based pullulan capsule.

Doctor Life / 02

Nattokinase & K2

What roles do nattokinase and vitamin K2 play?

Nattokinase is a proteolytic enzyme associated with natto fermentation and studied in relation to fibrinolysis markers. Vitamin K supports normal blood clotting and bones through different physiological processes. Their inclusion does not establish that the combination is suitable for everyone.

Doctor Life / 03

Nattokinase & K2

What research informs Nattokinase & K2?

Human studies have tested 2,000 FU of nattokinase for selected coagulation, fibrinolysis, and blood pressure measures. Separate MK-7 research used 100 mcg and assessed osteocalcin carboxylation. These were ingredient studies, not clinical trials of the combined product.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Ingredient amounts for the servings shown in the table.
Ingredient	1 capsule
Nattokinase	100 mg / 2 000 FU
Vitamin K2 MK-7	100 µg (133%*)

*NRV: Nutrient Reference Value

Full ingredient list

Fermented soybean extract (Glycine max), providing 2,000 FU of nattokinase; vitamin K2 (menaquinone-7) produced by Bacillus subtilis natto fermentation; bulking agent: microcrystalline cellulose; capsule shell: pullulan.

How to use

Part of your daily rhythm.

How to use

Adults: take 1 capsule daily on an empty stomach.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and healthy lifestyle are recommended. Store at room temperature, no higher than 25°C, out of reach of young children. If you take medication, use this product under medical supervision. Consult your doctor, especially if you take anticoagulants such as warfarin (Coumadin). For adults only. Not intended for use during pregnancy or breastfeeding.

Science & sources

Understand the formula.

These publications include studies using 2,000 FU of nattokinase and a randomized trial of 100 µg of vitamin K2 MK-7. Those amounts correspond to the activity and vitamin content in the product’s daily serving. Matching amounts do not establish equivalent effects for the combined formula.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01A single-dose of oral nattokinase potentiates thrombolysis and anti-coagulation profiles

Yuko Kurosawa, Shinsuke Nirengi, Toshiyuki Homma, Kazuki Esaki, Mitsuhiro Ohta, Joseph F. Clark, Takafumi Hamaoka

Scientific Reports (2015), 5, 11601. DOI: 10.1038/srep11601; PMID: 26109079.

In a double-blind, placebo-controlled crossover trial, 12 healthy men received a single 2,000 FU dose of nattokinase—the activity stated for one capsule of this product. Researchers observed changes in several fibrinolysis and coagulation measures, including D-dimer, fibrin/fibrinogen degradation products, factor VIII activity, and antithrombin. The trial did not test this finished formula or establish a clinical treatment benefit.

Read publication ↗

02Effects of nattokinase on blood pressure: a randomized, controlled trial

Ji Young Kim, Si Nae Gum, Jean Kyung Paik, Hyo Hee Lim, Kyong-Chol Kim, Kazuya Ogasawara, Kenichi Inoue, Sungha Park, Yangsoo Jang, Jong Ho Lee

Hypertension Research (2008), 31(8), 1583-1588. DOI: 10.1291/hypres.31.1583; PMID: 18971533.

In an eight-week randomized, double-blind trial, 86 people with elevated blood pressure received 2,000 FU of nattokinase or a placebo. Changes in systolic and diastolic blood pressure differed significantly between groups. The activity level matches the product’s daily serving, but the study did not test this finished formula.

Read publication ↗

03Low-Dose Daily Intake of Vitamin K2 (Menaquinone-7) Improves Osteocalcin γ-Carboxylation: A Double-Blind, Randomized Controlled Trials

Naoko Inaba, Toshiro Sato, Takatoshi Yamashita

Journal of Nutritional Science and Vitaminology (2015), 61(6), 471-480. DOI: 10.3177/jnsv.61.471; PMID: 26875489.

Randomized trials examined several MK-7 amounts, including 100 µg daily. In a 12-week placebo-controlled trial, 100 µg reduced uncarboxylated osteocalcin and improved the ratio of carboxylated to uncarboxylated osteocalcin. One capsule provides the same amount of MK-7, although this finished formula was not tested.

Read publication ↗

FAQ / Nattokinase & K2

Good questions. Clear answers.

Talk to us ↗

What does 2,000 FU tell me beyond 100 mg?

FU describes enzyme activity; milligrams describe extract weight. This product provides 100 mg of extract standardized to 2,000 FU. Both are useful for characterizing the serving.

Has 2,000 FU of nattokinase been studied in people?

Yes. Trials include a single-serving study of coagulation and fibrinolysis markers and an eight-week study of blood pressure. They do not establish that the supplement prevents or treats blood clots.

Do vitamin K2 and nattokinase cancel each other out?

They affect different aspects of physiology and should not be treated as simple opposites. The combination is not proven to balance or neutralize risks. Anyone taking anticoagulants should use it only under medical supervision.

Has 100 mcg of MK-7 been studied?

Yes. A 12-week randomized trial used 100 mcg daily and assessed osteocalcin carboxylation. This product provides that amount, but matching it does not guarantee the same outcome.

Does vitamin K2 thicken the blood?

That phrase is misleading. Vitamin K is needed for normal clotting and can interfere with vitamin K antagonist medicines such as warfarin. Follow the label's requirement for medical advice with anticoagulants.

Is nattokinase simply natto in a capsule?

No. Natto is fermented soy food. The supplement uses an extract with specified nattokinase activity, providing 2,000 FU.

Does the product contain soy?

Yes. The nattokinase comes from fermented soybean extract (Glycine max). If you have a soy allergy or sensitivity, review the ingredient source with your clinician before use.

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