# Blueberry Cognitive Performance Randomized Trial: What the Evidence Says
Canonical: https://www.migaku.app/guides/blueberry-cognitive-performance-randomized-trial-evidence-review
Category: evidence-review
Summary: Blueberry Cognitive Performance Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first
Last reviewed: 2026-07-08
Reviewed by: Migaku Evidence Review
# Blueberry Cognitive Performance Randomized Trial: What the Evidence Says

## Quick Answer

Blueberry Cognitive Performance 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 preclinical study.
- 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 |
| --- | --- | ---: | --- | --- |
| A randomised, double-blind, placebo-controlled trial to assess the postprandial dose-dependent effects of wild blueberries on metabolic and cognitive outcomes following a high-carbohydrate breakfast | randomized trial | 2 | 2026-05-26 | 10.1007/s00394-026-03974-0 |
| Brain Foods: A Narrative Review of Food Items and Their Impact on Cognition over the Life Course | preclinical study | 4 | 2026-05-31 | 10.3390/nu18111779 |

## What The Sources Report

- Slower gastric emptying contributes to improved satiety and a more gradual glucose response following meals. [Ellis Lucy R. (2026); evidence level 2]
- By improving satiety response to a meal, this may reduce the risk of obesity and other metabolic conditions such as type 2 diabetes mellitus or metabolic syndrome. [Ellis Lucy R. (2026); evidence level 2]
- With the global population aging, the prevalence of impairment and neurocognitive disorders has increased substantially, intensifying public health concerns. [Hardaway Chante (2026); evidence level 4]
- Among these, nutrition has emerged as a central and potentially scalable factor, with converging evidence suggesting that dietary exposures meaningfully influence brain structure, function, and long-term cognitive trajectories. [Hardaway Chante (2026); evidence level 4]

## 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 blueberry cognitive performance 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

- Ellis Lucy R. (2026). A randomised, double-blind, placebo-controlled trial to assess the postprandial dose-dependent effects of wild blueberries on metabolic and cognitive outcomes following a high-carbohydrate breakfast. DOI: 10.1007/s00394-026-03974-0. PMCID: PMC13212708. PMID: 42191861. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13212708/
- Hardaway Chante (2026). Brain Foods: A Narrative Review of Food Items and Their Impact on Cognition over the Life Course. DOI: 10.3390/nu18111779. PMCID: PMC13258466. PMID: 42280422. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13258466/

## 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.