Nattokinase 50 mg NSK-SD 1000 FU®
Non-Nutrient / Non-BotanicalBrand: Allergy Research Group
Functions
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.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
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
| Ingredient | Amount Per Serving | |
|---|---|---|
| Nattokinase(Soy) | 100 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
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
Allergy Research Group Nattokinase mg
Professional Supplement Center4.5(42)$62.99Allergy Research Group Nattokinase NSK-SD | Circulatory System Support | 1000 FU | 50mg | 90 & 300 Capsules
Femologist4.5(42)$62.39Allergy Research Group Nattokinase 50 mg - 300 Vegetarian Capsules
Supplement First4.5(42)$174.69Nattokinase 50 mg NSK-SD (Allergy Research Group) 300 Capsules
boulevardcompounding.com4.5(42)$174.99Nattokinase Supplement 100mg | Allergy Research Group 180 Softgels
Allergy Research Group5.0(3)$118.99NSK-SD 60 Capsules
The Natural Apothecary Shoppe$82.00Nattokinase NSK-SD Circulatory Support 1000 FU 90 Capsules 90 Capsules
Femologist4.5(42)$62.39Nattokinase NSK-SD
SFI Health$44.99
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.
The Vitamin Shoppe
4.4 (140)Vitamin & supplements store
2423 Katy Fwy Ste D4, Houston, TX 77007
Potent Health Supplements
3.0 (2)Wholesaler
10917 Fullerton Dr, Houston, TX 77043
Nutrition Depot
5.0 (112)Vitamin & supplements store
2005 Southwest Fwy, Houston, TX 77098
Total Nutrition Heights
4.8 (86)Vitamin & supplements store
174 Yale St #200, Houston, TX 77007
Dan's Vitamin House
4.8 (34)Vitamin & supplements store
3861 Bellaire Blvd, Houston, TX 77025
Club herbalife
5.0 (30)Vitamin & supplements store
7539 Avenue J suite H I, Houston, TX 77012
Simply Potent
5.0 (1)Vitamin & supplements store
2906 Payson St, Houston, TX 77021
GNC
4.5 (74)Vitamin & supplements store
103 Yale St #400, Houston, TX 77007
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 citationsToxicological 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 citationsEngineered 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 …
2026Effect 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 citationsOptimization 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.
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