# Dark Chocolate Cognition Randomized Trial: What the Evidence Says
Canonical: https://www.migaku.app/guides/dark-chocolate-cognition-randomized-trial-evidence-review
Category: evidence-review
Summary: Dark Chocolate Cognition Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass a
Last reviewed: 2026-08-06
Reviewed by: Migaku Evidence Review
# Dark Chocolate Cognition Randomized Trial: What the Evidence Says

## Quick Answer

Dark Chocolate Cognition Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are randomized trial, so conclusions should be framed as evidence-aware guidance rather than medical advice.

## Key Takeaways

- This page is generated only from sources stored in the Migaku evidence knowledge base.
- Current evidence mix: 1 randomized trial, 1 narrative review.
- Claims should be interpreted with the source type, study design, population, and publication date in mind.
- This article is educational and does not replace care from a qualified clinician.

## Evidence Map

| Source | Evidence type | Level | Date | Identifier |
| --- | --- | ---: | --- | --- |
| Effects of Walnuts on Postprandial Cognitive Function in Adults With Subjective Cognitive Impairment: Protocol for a Randomized Crossover Trial | randomized trial | 2 | 2025-01-01 | 10.2196/82032 |
| Cardiovascular Protective Effects and Mechanisms of Action of Cacao: A Comprehensive Review | narrative review | 3 | 2026-02-03 | 10.31083/RCM45461 |

## What The Sources Report

- Affecting 1 in 9 Americans aged older than 45 years, SCI is associated with mental distress and poses a risk for dementia. [Sarvestan Javad (2025); evidence level 2]
- Even though the polygenic risk score did not differ between those with subjective cognitive decline and those without it, the former had more than double the risk of developing dementia (hazard ratio 2.14, 1.44-3.18). [Sarvestan Javad (2025); evidence level 2]
- Managing risk factors through healthy
eating habits and regular exercise is crucial for CVD prevention. [Lee Yu Geon (2026); evidence level 3]
- Unsaturated fatty acids found in
olive oil and nuts can help prevent CVDs by regulating cholesterol metabolism. [Lee Yu Geon (2026); evidence level 3]

## How To Read This Evidence

Evidence level 1 generally reflects systematic reviews or meta-analyses. Level 2 includes randomized trials, guidelines, or public-health guidance. Level 3 usually reflects observational or narrative-review evidence. Level 4 is weaker or early-stage evidence. The level is a sorting aid, not a final quality grade.

## Practical Interpretation

There is trial evidence in the current set, but population and intervention details still matter. For dark chocolate cognition randomized trial, the next editorial step is to add more targeted sources and separate strong findings from early or indirect evidence.

## Limits Of This First Pass

This is a small-batch MVP article. It uses the first ingested sources for this topic and should be expanded with more targeted searches, license review, and human editorial checks before being treated as a definitive review.

## References

- Sarvestan Javad (2025). Effects of Walnuts on Postprandial Cognitive Function in Adults With Subjective Cognitive Impairment: Protocol for a Randomized Crossover Trial. DOI: 10.2196/82032. PMCID: PMC12759297. PMID: 41418290. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC12759297/
- Lee Yu Geon (2026). Cardiovascular Protective Effects and Mechanisms of Action of Cacao: A Comprehensive Review. DOI: 10.31083/RCM45461. PMCID: PMC12960007. PMID: 41789316. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC12960007/

## Safety Note

Health information can change, and individual risk depends on medical history, medications, pregnancy status, age, and diagnosis. Talk with a qualified clinician before changing treatment, supplement, or medication routines.