Automated research refresh updated the product evidence set.
Before: Evidence 60 · Safety 74 · Effectiveness 50 · Confidence 75
After: Evidence 60 · Safety 74 · Effectiveness 49 · Confidence 75
CocoaVia Cocoa Flavanols 500mg – Heart and Brain Support, High Flavanol Cocoa Extract, Boosts Nitric Oxide, Blood Circulation and Memory, Preworkout, Vegan, Gluten-Free, Dark Chocolate, 30-Day
1 Most Proven and Concentrated Flavanol Extract: CocoaVia Cardio Health Powder is made with CocoaproTM extract, which is backed by more than 20 years of Scientific Research, 30 plus Clinical Studies, and 150 Published Scientific Papers. Cocoa Flavanols are...
Direct product evidence5 papers indexed · 3 claims mapped
Resar evidence panel
0–100 · cited research only
Evidence Score
60
Good
Safety Score
74
Strong
Effectiveness Score
49
Emerging
Research Confidence
75
Strong
Product Fit Score
45
Emerging
Bottom line
Moderate evidence (Good) — promising research, but read the caveats before buying.
Product fit is weaker — dose, price, or practical use may not align with what studies tested.
Evidence Score
60
Good
Price
$49.99
Resar may earn an affiliate commission on this purchase. Commissions never change scores — see our affiliate disclosure and conflicts policy. Scores reflect cited research, not medical advice.
Compare others in SupplementsTop research
The strongest studies behind this product
Ranked by evidence hierarchy and how closely each study matches this product. Start with the strongest study, then read down. Every claim needs a trail.
Strongest studyHuman RCT86% relevance
Effects of cocoa extract supplementation on physical performance measures: results from the randomized controlled COcoa Supplement and Multivitamin Outcomes study
Randomized Controlled Trial · JBMR Plus · 2026
What the research shows
No measurable improvement in the assessed physical performance metrics.
Direct product evidenceRead study
2345
Human RCT80% relevance
Effects of Cocoa Extract and Multivitamin Supplementation on Venous Thromboembolism in the COSMOS Trial
Randomized Controlled Trial · Thrombosis and Haemostasis · 2026
Direct product evidence
Indirect evidence74% relevance
Effects of Cocoa Extract and Dark Chocolate on Angiotensin-converting Enzyme and Nitric Oxide in Human Endothelial Cells and Healthy Volunteers–A Nutrigenomics Perspective
Other · Journal of Cardiovascular Pharmacology · 2011
Category-level evidence
Indirect evidence68% relevance
Lack of social support
Other · Health risks · 2020
Category-level evidence
Indirect evidence62% relevance
The Million-Dollar Workplace Wellness Heart Attack Screen
Other · Forefront Group · 2013
Category-level evidence
Scores reflect these cited studies, not medical advice. Expand the full evidence detail below for protocols, dose context, and reported side effects.
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Claim ledger
Every claim, mapped to its source
Each product claim below is tied to a specific paper with study type, match strength, and limitations. Nothing here is medical advice — it is a research trail you can audit.
Claim match reflects how closely a specific paper supports this benefit — not AI confidence or medical certainty.
ClaimEvidence directnessMatchStudy type
Full evidence detail
Study-by-study breakdown
Each paper below is ranked for this listing. Start with the highest match, then expand any study for a plain-language readout.
How to read this section
- Match % - how closely the study matches this product (not overall scientific quality).
- Evidence type - study design (RCT, review, etc.) and whether it is direct, category-level, or indirect.
- What it found - short summary and quoted extract from the paper metadata. Not medical advice.
Direct product evidenceThis study closely matches this product or its active ingredient.
In plain language
Two‑year double‑blind, placebo‑controlled RCT in a New England sub‑cohort (n=603, mean age ≈ 70) measured grip strength, walking speed, balance, chair‑stands and TUG. No significant differences were observed between cocoa extract and placebo for any primary or secondary performance outcomes. [1]
What the study reported
Verified extract — not AI generated
“No measurable improvement in the assessed physical performance metrics.”
How it was used
Cocoa extract was administered; specific dose not provided in the abstract.
Side effects noted
Not reported in the abstract.
Caveats
Sub‑cohort size limited; outcomes focused on physical performance only; dosage details missing; results may not generalize to other health domains.
Transparency
Score history
Human review is pending for this listing.
Automated research refresh updated the product evidence set.
Before: Evidence 64 · Safety 74 · Effectiveness 55 · Confidence 80
After: Evidence 60 · Safety 74 · Effectiveness 50 · Confidence 75
Reviews
Shopper feedback
4.2
average rating
1,931 Amazon reviews were available from the listing metadata.