Nattokinase 50 mg NSK-SD 1000 FU®

Non-Nutrient / Non-Botanical

Brand: Allergy Research Group

CapsuleNon-Nutrient/Non-BotanicalOn Market
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Net Contents

300 Vegetarian Capsule(s)

Serving Size

2 Capsule(s)

Servings Per Container

150

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 13947 75291 7

Product Version

Rev. 009

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Vegetarian.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Soy

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 2 Capsule(s) · 2 per day

IngredientAmount Per Serving
Nattokinase(Soy)100 mg

Not Present

Other Ingredients

Hydroxypropyl MethylcelluloseMicrocrystalline CelluloseL-Leucine

Target Groups

VegetarianAdult (18 - 50 Years)

Label Claims

All Other

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use As a dietary supplement, 2 capsules two times daily initial dose, or as directed by a healthcare practitioner. May be taken with or without food. Take with 8 to 10 ounces of water.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

If taken with anticoagulant drugs, use under medical supervision.

Precautions re: All Other

Contraindicated in any condition associated with bleeding.

Precautions re: Allergies

Contains: Soy.

Storage

Storage

Store in a cool, dry place, tightly capped.

Formulation

Formulation re: Other

Isolated, purified and encapsulated nattokinase, an enzyme derived from boiled soybeans and a selected, patented strain of Bacillus subtilis natto.

Formulation re: Vegetarian/Vegan

Nattokinase NSK-SD is vegetarian, non-irradiated, and free of vitamin K2.

Formulation re: Does NOT Contain

Nattokinase NSK-SD is vegetarian, non-irradiated, and free of vitamin K2.

Formulation re: Other

Each batch is tested to ensure potency.

FDA Statements

FDA Statement of Identity

Dietary Supplement

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

NSK-SD is a trademark of Japan BioScience Laboratory.

General Statements: All Other Content

Product of Japan.

Manufacturer & Distributor

Distributor

Allergy Research Group

South Salt Lake, UT, 84115

800-545-9960

Market Reference

$7.99 – $174.99· 40 listings
  • Allergy Research Group Nattokinase mg

    Professional Supplement Center4.5(42)
    $62.99
  • Allergy Research Group Nattokinase NSK-SD | Circulatory System Support | 1000 FU | 50mg | 90 & 300 Capsules

    Femologist4.5(42)
    $62.39
  • Allergy Research Group Nattokinase 50 mg - 300 Vegetarian Capsules

    Supplement First4.5(42)
    $174.69
  • Nattokinase 50 mg NSK-SD (Allergy Research Group) 300 Capsules

    boulevardcompounding.com4.5(42)
    $174.99
  • Nattokinase Supplement 100mg | Allergy Research Group 180 Softgels

    Allergy Research Group5.0(3)
    $118.99
  • NSK-SD 60 Capsules

    The Natural Apothecary Shoppe
    $82.00
  • Nattokinase NSK-SD Circulatory Support 1000 FU 90 Capsules 90 Capsules

    Femologist4.5(42)
    $62.39
  • Nattokinase NSK-SD

    SFI Health
    $44.99

Where to Buy Locally

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Research & Studies

  • Safety of fermented soybean extract NSK‐SD® as a novel food pursuant to Regulation (EC) No 258/97

    … on Dietetic Products, Nutrition and Allergies … - EFSA …, 2016 - Wiley Online Library

    … mg nattokinase in softgel form (NSK-SD) containing 2,000 FU… differences between the study groups were observed these … three capsules of 50 mg NSK (corresponding to 2,000 FU) over …

    20164 citations
  • Toxicological assessment of nattokinase derived from Bacillus subtilis var. natto

    BJ Lampe, JC English - Food and Chemical Toxicology, 2016 - Elsevier

    … , NSK-SD (Japan Bio Science Laboratory Co., Ltd., Japan). … for 4 weeks was well tolerated in healthy human volunteers. … in male and female Sprague–Dawley rats is 1000 mg/kg-day…

    201678 citations
  • Engineered Bacillus subtilis for high-yield nattokinase production and therapeutic potential in obesity management.

    Y Liu, L Zhu, T Yao, Y Wang, C Xie… - Journal of Animal Science …, 2026 - europepmc.org

    … potential of the enzyme by supplementing it into the diet of … 2,000–4,000 FU to maintain cardiovascular health, and short-… the dose of 1,000 FU/kg BW NK were safe in this study. Studies …

    2026
  • Effect of Nattokinase on the Blood Flow Improvement in Healthy Subjects

    N Watanabe, S Takaoka, S Uehara, M Ota - i-natural.com.hk

    … NSK-SD per 3 capsules. Also, Fibrin-degrading enzyme activity (FU) was used for the measurement of nattokinase… instead of Fermented Soybean Extract NSK-SD, were used. both test …

  • PRODUCTION, CHARACTERIZATION AND OPTIMIZATION OF NATTOKINASE

    KD Jagtap - 2020 - books.google.com

    … Nattokinase facilitates blood flow contributing to healthy … It estimated at 6,000 fibrin degradation units (FU). In addition, … with hypertension 6 administered NSK-SD for 8 weeks. Further …

    20201 citations
  • Optimization of EPA-Nattokinase Nanoemulsions Processed by High-Pressure Homogenization to Enhance Stability and Thrombolytic Efficacy

    J Wang, S Xu, L Chen, P Zheng, R Song, Y Song… - Foods, 2025 - mdpi.com

    … of next-generation health-promoting functional foods targeting … each group of mice was intraperitoneally injected with 50 mg/… this study are included in the article/Supplementary Materials…

    2025

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-08-23. DSLD Label ID: 233399. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.