# Caffeine Cognition Randomized Trial: What the Evidence Says
Canonical: https://www.migaku.app/guides/caffeine-cognition-randomized-trial-evidence-review
Category: evidence-review
Summary: Caffeine Cognition Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are mix
Last reviewed: 2026-08-18
Reviewed by: Migaku Evidence Review
# Caffeine Cognition Randomized Trial: What the Evidence Says

## Quick Answer

Caffeine Cognition Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are mixed biomedical and public-health sources, 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: 2 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 |
| --- | --- | ---: | --- | --- |
| Distinguishing caffeine expectancy from pharmacological effects: a comparative review of experimental designs with future directions | preclinical study | 4 | 2026-06-11 | 10.3389/fphys.2026.1865993 |
| Dietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review | preclinical study | 4 | 2026-06-24 | 10.1080/15502783.2026.2692003 |

## What The Sources Report

- Importantly, recent evidence indicates that expectancy effects may vary depending on the outcome measured. [Delleli Slaheddine (2026); evidence level 4]
- Collectively, these methodological approaches have improved our understanding of CAF's multifaceted effects. [Delleli Slaheddine (2026); evidence level 4]
- Individual exercise tolerance is defined as the amount of physical exertion that can be sustained before task disengagement and can be increased through appropriate training strategies. [Strasser Barbara (2026); evidence level 4]
- We then integrate evidence on the ergogenic effects of various dietary interventions with existing knowledge on perception of effort, focusing on how these interventions may limit the development of fatigue during endurance exercise and thereby influence effort perception. [Strasser Barbara (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

For caffeine cognition randomized trial, the current source set is useful for orientation, but it is not yet broad enough for strong claims. Use cautious language and keep conclusions close to the cited sources.

## 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

- Delleli Slaheddine (2026). Distinguishing caffeine expectancy from pharmacological effects: a comparative review of experimental designs with future directions. DOI: 10.3389/fphys.2026.1865993. PMCID: PMC13293850. PMID: 42369606. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13293850/
- Strasser Barbara (2026). Dietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review. DOI: 10.1080/15502783.2026.2692003. PMCID: PMC13295106. PMID: 42338317. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13295106/

## 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.