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Nattokinase 4,000 Fibrinolytic Units
A maximum-strength fermented soy enzyme supplement providing 4,000 Fibrinolytic Units (FU) of nattokinase activity per capsule.
Free delivery on subscriptions
Free sample each month
Pause or cancel anytime
365 day free returns
Back in stock: 18/11/2025
Buy now, pay later from £4.75/mo
Key Benefits
-
Provides 4,000 Fibrinolytic Units (FU) of nattokinase per capsule.
-
Contains a naturally derived enzyme produced through soy fermentation.
-
Features non-GMO ingredients.
Nattokinase 4,000 Fibrinolytic Units delivers a concentrated enzyme derived from natto, a traditional Japanese food made by fermenting soybeans with Bacillus subtilis natto. Each capsule provides 4,000 Fibrinolytic Units (FU) of nattokinase, reflecting its enzyme activity. This higher-strength formulation offers twice the enzyme activity of the original 2,000 FU version, providing a simple and measurable way to include fermented soy-based enzymes in your daily routine.
Formulated without artificial additives, colours, or preservatives, this non-GMO supplement offers a clean, food-based source of nattokinase suitable for everyday use as part of a balanced diet.
Swanson began in 1969 in Fargo, North Dakota, with founder Leland Swanson’s vision to make wellness simple, affordable, and science-driven. Motivated by his personal health journey, he built a brand rooted in transparency, quality, and research-backed innovation. Swanson Health products are manufactured in GMP-certified facilities and undergo thorough in-house and third-party testing to ensure purity and potency. Each formulation reflects a blend of scientific research, traditional use, and modern nutritional needs. With Swanson, you receive trusted, high-quality supplements designed to support your health goals every day.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Nattokinase (providing 4,000 fibrinolytic units of activity per capsule).
Other ingredients: Maltodextrin, microcrystalline cellulose (plant fiber), gelatin, magnesium stearate, medium-chain triglycerides (palm) oil.
As a dietary supplement, take one capsule per day with water.
WARNING: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, have a medical condition or are taking medication, especially blood-thinning medication.
Keep out of the reach of children. Do not use if seal is broken. Store in a cool, dry place.
Additional Information:
Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.
If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.
We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.
Nattokinase 4,000 Fibrinolytic Units
A maximum-strength fermented soy enzyme supplement providing 4,000 Fibrinolytic Units (FU) of nattokinase activity per capsule.
Free delivery on subscriptions
Free sample each month
Pause or cancel anytime
365 day free returns
Back in stock: 18/11/2025
Buy now, pay later from £4.75/mo
Key Benefits
-
Provides 4,000 Fibrinolytic Units (FU) of nattokinase per capsule.
-
Contains a naturally derived enzyme produced through soy fermentation.
-
Features non-GMO ingredients.
Nattokinase 4,000 Fibrinolytic Units delivers a concentrated enzyme derived from natto, a traditional Japanese food made by fermenting soybeans with Bacillus subtilis natto. Each capsule provides 4,000 Fibrinolytic Units (FU) of nattokinase, reflecting its enzyme activity. This higher-strength formulation offers twice the enzyme activity of the original 2,000 FU version, providing a simple and measurable way to include fermented soy-based enzymes in your daily routine.
Formulated without artificial additives, colours, or preservatives, this non-GMO supplement offers a clean, food-based source of nattokinase suitable for everyday use as part of a balanced diet.
Swanson began in 1969 in Fargo, North Dakota, with founder Leland Swanson’s vision to make wellness simple, affordable, and science-driven. Motivated by his personal health journey, he built a brand rooted in transparency, quality, and research-backed innovation. Swanson Health products are manufactured in GMP-certified facilities and undergo thorough in-house and third-party testing to ensure purity and potency. Each formulation reflects a blend of scientific research, traditional use, and modern nutritional needs. With Swanson, you receive trusted, high-quality supplements designed to support your health goals every day.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Nattokinase (providing 4,000 fibrinolytic units of activity per capsule).
Other ingredients: Maltodextrin, microcrystalline cellulose (plant fiber), gelatin, magnesium stearate, medium-chain triglycerides (palm) oil.
As a dietary supplement, take one capsule per day with water.
WARNING: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, have a medical condition or are taking medication, especially blood-thinning medication.
Keep out of the reach of children. Do not use if seal is broken. Store in a cool, dry place.
Additional Information:
Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.
If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.
We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.
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Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
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Healf Curation Process™
Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation