Product guide · Food supplement

MST® Nattokinase 20,000 FU/g, 90 caps

Nattokinase capsules from MST. This guide sets out what the manufacturer states about the composition of MST® Nattokinase, what independent research says about its main ingredient, and the safety and regulatory points that apply.

Educational guide · Sources checked 4 November 2026 · 3 references

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Named ingredients: 1
Amounts stated: All
Status: Food supplement
Evidence summaries: 1

Overview

Manufacturer information

MST® Nattokinase contains nattokinase: 20,000 FU/g (as stated in the product name).

Ingredients & composition

Manufacturer information

Ingredient	Amount
Nattokinase	20,000 FU/g (as stated in the product name)

Scientific background

Independent research

Nattokinase

Nattokinase is an enzyme from natto, a fermented soybean food, that can break down fibrin, a component of blood clots.

Research evidence

Independent research

Nattokinase

Animal research compared its anti-thrombotic activity and bleeding risk with a clot-dissolving drug¹. Robust human trials on cardiovascular outcomes are lacking.

Evidence limitations

Independent research

No published study has tested this specific product; the research summarised here concerns the ingredient itself.

Nattokinase

Human evidence is limited.

Safety & potential risks

Manufacturer label

Do not exceed the recommended daily dose.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
Keep out of the reach of young children.

Independent research

Nattokinase

Because it affects blood clotting, nattokinase may increase bleeding risk, especially with anticoagulants, antiplatelet drugs or before surgery¹.

Regulatory status

GIGACULT product information

Sold as a food supplement. No health claims are made for this product.

Regulation and sport

Nattokinase

No health claim for this ingredient is authorised in the EU²; it is sold under national food-supplement rules³.

Scientific references

Guo H, Ban YH, Cha Y, et al. Comparative anti-thrombotic activity and haemorrhagic adverse effect of nattokinase and tissue-type plasminogen activator. Food Sci Biotechnol. 2019;28:1535-1542. PubMed 31695953
Commission Regulation (EU) No 432/2012 establishing a list of permitted health claims made on foods. Official Journal of the European Union. Source
Directive 2002/46/EC on the approximation of the laws of the Member States relating to food supplements. Official Journal of the European Union. Source

Sources checked against PubMed, Crossref or the official publisher on 2026-11-04. Manufacturer information is taken from the product's own data and has not been independently tested.

The product