Nattokinase®
Non-Nutrient / Non-BotanicalBrand: Source Naturals
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
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: 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
- 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
| Ingredient | Amount Per Serving | |
|---|---|---|
| Nattokinase | 72 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
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
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
General Statements: All Other Content
System enzyme for healthy circulation 36 mg
General Statements: All Other Content
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.
Brand IP Statement(s) re: (c), (TM), (SM)
NSK-SD is a trademark of Japan Bio Science Laboratories.
General: Product/Version Code
SN1725 REV C112
Manufacturer & Distributor
Distributor
Source Naturals, Inc.
P. O. Box 2118, Santa Cruz, CA, 95062
Market Reference
Nattokinase mg Source Naturals
Herbs Direct4.8(182)$11.10
Horbaach Nattokinase 4000 FU 150 Capsules
Target4.8(115)$16.99
Nattokinase 90 capsules
Life Extension4.7(13)$27.75
Double Wood Supplements Nattokinase
Double Wood Supplements4.8(122)$19.95
Best Naturals Nattokinase 100 mg 90 Vegetarian Capsules
Target4.8(386)$9.99Lowest
Nattokinase 60 Capsules
Natural Zing$19.95
NOW 100 mg Nattokinase
Swanson Health Products4.8(903)$32.79
Max Strength Nattokinase - 180 Capsules
Pure Prescriptions4.9(174)$49.00
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.
Ancient Formulas, Inc
5.0 (9)Vitamin & supplements store
1235 Santa Fe S, Wichita, KS 67211
Supplement World
4.9 (338)Vitamin & supplements store
6370 E Central Ave, Wichita, KS 67208
All Out Detox
4.8 (122)Vitamin & supplements store
3033 S Seneca St, Wichita, KS 67217
Supplement Giant
4.8 (192)Vitamin & supplements store
2260 N Rock Rd, Wichita, KS 67226
316 Nutrition Protein & Energy Bar
4.9 (21)Sports nutrition store
2250 N Ridge Rd Ste 450, Wichita, KS 67205
All Out Detox
4.9 (46)Vitamin & supplements store
339 N West St, Wichita, KS 67203
Supplement World
4.9 (152)Vitamin & supplements store
7700 E Kellogg Dr Ste q01d, Wichita, KS 67207
Supplement Giant
4.8 (131)Vitamin & supplements store
2556 N Maize Rd #110, Wichita, KS 67205
Research & Studies
Nattokinase as an adjuvant therapeutic strategy for non-communicable diseases: a review of fibrinolytic, antithrombotic, anti-inflammatory, and antioxidant effects
M Granito, L Alvarenga, M Ribeiro… - Expert Review of …, 2024 - Taylor & Francis
… natto may be associated with health benefits related to non-communicable chronic diseases since natto … For example, vitamin K2 from Natto can play an essential role in bone health, as …
202428 citationsNattokinase: Biological activities, pharmacological mechanisms, therapeutic applications, challenges and perspetives
WJ Zhang - Network, 2028 - researchgate.net
… the traditional Japanese fermented soybean food natto, has garnered substantial … natto. This comprehensive review synthesizes the current body of scientific literature on nattokinase…
2028Nattokinase: an oral antithrombotic agent for the prevention of cardiovascular disease
Y Weng, J Yao, S Sparks, KY Wang - International journal of molecular …, 2017 - mdpi.com
… Natto is regarded as a fibrinolytic miracle food (Figure 2). In 1980… Medical School, discovered that natto can dissolve artificial fibrin [1]. Sumi and his team extracted an enzyme from natto …
2017284 citationsNattokinase: a promising alternative in prevention and treatment of cardiovascular diseases
H Chen, EM McGowan, N Ren, S Lal… - Biomarker …, 2018 - journals.sagepub.com
… Nattokinase (NK), the most active ingredient of natto, … effects and the consumption of Natto has been linked to a … by which natto consumption led to overall cardiovascular health. …
2018257 citationsNutritional health perspective of natto: A critical review
M Afzaal, F Saeed, F Islam, H Ateeq… - Biochemistry …, 2022 - Wiley Online Library
… is a protein-rich food, so if we increase our plant-based protein intake by 34 grams while utilizing a big cup, natto contains an abundant source of micronutrients. The natto supplement …
202299 citationsResearch progress of nattokinase in reducing blood lipid
C Wei, R Cai, Y Song, X Liu, HL Xu - Nutrients, 2025 - mdpi.com
… research progress of nattokinase in lowering blood lipid, including its source, structure and … on the application of nattokinase in the treatment of dyslipidemia. Natto is a traditional …
202510 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-06-23. DSLD Label ID: 75531. 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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