NOW Foods Nattokinase 100mg – 2,000 FU | 60 Veg Caps | Circulation & Cardiovascular Support | Non-GMO
NOW Foods Nattokinase 100mg – 2,000 FU | 60 Veg Caps | Circulation & Cardiovascular Support | Non-GMO
Couldn't load pickup availability
The full picture
Score, six-dimension breakdown, evidence, and FAQ. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
Six-dimension breakdown
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are in How we scored this, above. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
Frequently asked questions
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
What does nattokinase do?
Nattokinase is a fibrinolytic enzyme derived from fermented soybeans (natto) that supports the body's natural process for breaking down fibrin, which may help maintain healthy blood flow and circulation.
Is 2,000 FU an effective dose?
Yes — 2,000 FU per day is within the dose range used in several published human studies on nattokinase's fibrinolytic and cardiovascular effects.
Is nattokinase safe to take with blood thinners?
Nattokinase itself has mild antiplatelet/fibrinolytic activity, so combining it with anticoagulant or antiplatelet medication should only be done under a physician's supervision — this listing's framing doesn't make that caveat clear enough.
Why isn't this product rated higher?
The brand's manufacturing quality is strong, but the safety score is held down by marketing language that implies suitability for people on blood-thinning medication without recommending medical supervision.
Share
