How to Compare Nattokinase FU Potency

Nattokinase is an enzyme derived from fermented soy. Compare FU enzyme activity, serving size, and soy allergen information rather than milligrams alone.

This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Research and regulatory status can change, so ask a qualified professional when medical judgment is needed.

2026 search trend

A July 2026 search-trend report listed nattokinase at +173% year over year. Because it may affect clotting, this is not an ingredient to choose on trend alone.

What to compare on product labels

• Look for FU (fibrinolytic units) per serving in addition to milligrams.
• Separate plain nattokinase from blends with serrapeptase, vitamin K2, or other enzymes.
• Check soy allergen labeling and whether the product uses an enteric format.
• Clinical evidence is limited, and enzyme activity can vary by product.

Other names and search terms

Ingredients often compared together

Cautions

• Ask a professional before use if you take anticoagulants or antiplatelet medicine or have a bleeding disorder.
• Tell your surgical team if you use nattokinase.
• Vitamin K2 in natto food and nattokinase enzyme supplements are not the same thing.

Check products on Supplecipe

Search the ingredient, switch to the single-ingredient filter, then open product comparison or stack analysis for the products you are considering.