# Guarana Focus Randomized Trial: What the Evidence Says
Canonical: https://www.migaku.app/guides/guarana-focus-randomized-trial-evidence-review
Category: evidence-review
Summary: Guarana Focus Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are systemat
Last reviewed: 2026-06-23
Reviewed by: Migaku Evidence Review
# Guarana Focus Randomized Trial: What the Evidence Says

## Quick Answer

Guarana Focus Randomized Trial has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are systematic review, 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 systematic review, 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 |
| --- | --- | ---: | --- | --- |
| The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials. | systematic review | 1 | 2026-01-20 | 10.3389/fphar.2025.1672171 |
| Synergistic Actions of Natural Compounds for Enhancing Cognitive and Physical Performance: A Narrative Review | preclinical study | 4 | 2026-01-30 | 10.7759/cureus.102674 |

## What The Sources Report

- Conclusion The NMA results indicate that in terms of learning and memory functions, raisin and tart cherry ranked higher; in terms of executive functions, the bacopa monnieri compound demonstrated a relatively better intervention effect, providing an important basis for non-drug interventions for cognitive health in the healthy older adults. [Feng X (2026); evidence level 1]
- Background With the accelerating global population aging, age-related cognitive decline has become a significant health concern for the older adults. [Feng X (2026); evidence level 1]
- Energy drink consumption has grown exponentially across adolescents, young adults, athletes, and shift workers, driven by demands for prolonged alertness and improved performance . [Muacevic Alexander (2026); evidence level 4]
- Because of heterogeneity in study designs, populations, dosing regimens, and outcome measures, no formal risk-of-bias tool or quantitative meta-analysis was applied. [Muacevic Alexander (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 at least one systematic-review style source in the current set, so it deserves more weight than single-study evidence. For guarana focus 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

- Feng X (2026). The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials.. DOI: 10.3389/fphar.2025.1672171. PMCID: PMC12864429. PMID: 41640686. https://pmc.ncbi.nlm.nih.gov/articles/PMC12864429/
- Muacevic Alexander (2026). Synergistic Actions of Natural Compounds for Enhancing Cognitive and Physical Performance: A Narrative Review. DOI: 10.7759/cureus.102674. PMCID: PMC12950988. PMID: 41777984. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC12950988/

## 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.