Optimum Nutrition
1
/
of
2
90 Natto Capsules
90 Natto Capsules
No reviews
No reviews
Regular price
$16.43 USD
Regular price
Sale price
$16.43 USD
Shipping calculated at checkout.
Quantity
Couldn't load pickup availability
The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
38/100
Rejected
Six-dimension breakdown
Evidence
45
Formulation
40
Manufacturing
30
Safety
48
Transparency
25
Sustainability
38
Why this scored 38/100
This SKU is sold as '90 Natto Capsules' with 'designed specifically for export trade' framing and no disclosed manufacturer, per-capsule milligrams, or — critically for nattokinase — fibrinolytic units (FU). Nattokinase has small-trial evidence for modest blood-pressure reduction at 2,000 FU/day, but potency is measured in FU, not mg, and unlabeled products can be anywhere from sub-clinical to over-clinical. 'For export trade' framing usually indicates a product not compliant with domestic (Chinese) retail labeling requirements. Auto-failed under misleading_naming.
Last scored: Full rubric →
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 embedded in the analysis text on the "Analysis" tab. 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.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 38 / 100
- Tier
- Rejected
- Category
- Supplements
- Subcategory
- vitamins micronutrients
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Perfecsy
- Product type
- 0
- Tags
- Perfecsy, Shopify Collective
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
Share
