NSK-SD Nattokinase 36 mg®

Non-Nutrient / Non-Botanical

Brand: Source Naturals

Softgel CapsuleNon-Nutrient/Non-BotanicalOn Market
Click to view full label

Net Contents

90 Softgel(s)

Serving Size

1–2 Softgel(s)

Servings Per Container

45

Supplement Form

Softgel Capsule

Bar Code (UPC/SKU)

0 21078 01725 7

Product Version

SN1725 REV C112 FG-88228

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: Gluten-Free.

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

  • Milk
  • Egg
  • Wheat
  • Soy
  • Gluten

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: 1–2 Softgel(s) · 3 per day

IngredientAmount Per Serving
Nattokinase72 mg

Not Present

Other Ingredients

Soybean OilGelatinGlycerinBeeswaxGlycerin Fatty Acid EsterSoybean Lecithin

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use: 1 to 2 softgels three times daily on an empty stomach with 8 ounces of water.

Warnings & Precautions

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Precautions re: All Other

Warning: Do not use if you have a blood coagulation or blood pressure disorder.

Precautions re: Pregnant or Nursing or Prescription Medications

Consult your health care professional before taking this product if you are taking any drug that affects blood coagulation or blood pressure such as prescription vitamin K, heparin, warfarin (Coumadin), diuretics, ACE inhibitors, or beta blockers, or if you are pregnant, may become pregnant, or breastfeeding.

Storage

Storage

Store in a cool, dry place.

Formulation

Formula re: Contains

Systemic enzyme for healthy circulation

Formula re: Contains

Nattokinase is a systemic enzyme isolated from the traditional Japanese soy food natto. It has been shown to support healthy blood flow by assisting the circulatory clearing system of the body.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten or wheat. Contains no sugar, salt, preservatives, or artificial color, flavor or fragrance.

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Other Label Statements

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

NSK-SD is a trademark of Japan Bio Science Laboratories.

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

Copyright SOURCE NATURALS, INC.

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$9.99 – $8967.60· 40 listings
  • Nattokinase mg Source Naturals

    Herbs Direct4.8(182)
    $11.10
  • Klaire Labs Sfi Health Nattokinase Nsk-Sd

    Milltown Pharmacy
    $44.99
  • Pure Naturals Nattokinase 100 mg 90 Veggie Capsules

    Walmart - Vitaminshub
    $9.99Lowest
  • Natto NSK Mega

    TensNet.com
    $48.00
  • Nattokinase 4000 FU 2 bottles - 240 capsules (8-month supply)

    us.pureclinica.com5.0(2)
    $39.93
  • Vitacost Nattokinase NSK-SD 2000 FU 90 Capsules

    iHerb5.0(27)
    $25.99
  • Best Naturals High Potency Nattokinase 4000 FU Per Serving/ 200 mg Per Serving

    Walmart - Best Naturals4.1(7)
    $19.99
  • Biomed Nattokinase NSK-SD

    thearcticpure.com4.4(167)
    $54.39

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

  • HAWAII DISCOUNT VITAMINS SUPERSTORE - HONOLULU

    4.9 (307)

    Vitamin & supplements store

    1600 Kapiolani Blvd Ste 121, Honolulu, HI 96814

  • GNC

    4.0 (13)

    Vitamin & supplements store

    4211 Waialae Ave, Honolulu, HI 96816

  • Designer Body & Nutrition

    4.9 (25)

    Sports nutrition store

    575 Cooke St, Honolulu, HI 96813

  • The Vitamin Shoppe

    4.1 (89)

    Vitamin & supplements store

    1450 Ala Moana Blvd Space 1305, Honolulu, HI 96814

  • Distinct Supplements

    Vitamin & supplements store

    2630 Kapiolani Blvd, Honolulu, HI 96826

  • GNC

    1.6 (8)

    Vitamin & supplements store

    755 Kapahulu Ave Space 4, Honolulu, HI 96816

  • GNC

    4.1 (75)

    Vitamin & supplements store

    1450 Ala Moana Blvd #1211, Honolulu, HI 96814

  • Wellbeing &Organic World LLC 웰빙오가닉월드

    4.6 (16)

    Vitamin & supplements store

    1921 Kalākaua Ave, Honolulu, HI 96815

Research & Studies

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

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

    … of nattokinase in a more comprehensive manner, several GLP-compliant studies in rodents and human volunteers have been conducted with the enzyme product, NSK-SD (… in healthy …

    201679 citations
  • Effect of Nattokinase on the Blood Flow Improvement in Healthy Subjects

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

    … Also, soft capsules, containing dextrin instead of Fermented Soybean Extract NSK-SD, were used. both test diet and placebo capsules have the same size (diameter: 10.9mm, minor axis…

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

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

    … In a pilot study in humans (Ero et al., 2013), 11 healthy participants (six females, five males, aged 21–65 years) ingested a single dose of 100 mg nattokinase in softgel form (NSK-SD) …

    20163 citations
  • Nattokinase–Uses and benefits

    M Hristova - TJS, 2023 - researchgate.net

    … The effect of NK on fibrinolysis and FDP was studied in healthy volunteers who were taking nattokinase for 4 days. The serum FDP concentration was measured before the nattokinase …

    20231 citations
  • Preserving the activity of attenuating atherosclerosis of nattokinase in gastrointestinal system by NK/SA/CS microcapsules

    M Xie, M Yang, Z Wang, S Cheng, M Du - Food Bioscience, 2024 - Elsevier

    The study focused on the role of Nattokinase/Sodium alginate/Chitosan microcapsules (NK/SA/CS microcapsules) in preserving nattokinase activity in the gastrointestinal system and …

    20249 citations
  • A safe and efficient method to retrieve mesenchymal stem cells from three-dimensional fibrin gels

    B Carrion, IA Janson, YP Kong… - … Engineering Part C …, 2014 - journals.sagepub.com

    … Kazuya Ogasawara from Japan Bio Science Laboratory Co., Ltd., Oita, Japan, for the kind gift of the nattokinase (NSK-SD) extract used in this study. We also acknowledge Dr. Mohamed …

    201457 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-01-23. DSLD Label ID: 273339. 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.