Evidence map›Paper›PMID 35984306›Full record

SynthesisNutrition reviews2023

Effects of creatine supplementation on memory in healthy individuals: a systematic review and meta-analysis of randomized controlled trials.

Konstantinos Prokopidis, Panagiotis Giannos, Konstantinos K Triantafyllidis, Konstantinos S Kechagias, Scott C Forbes, Darren G Candow

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Nutrition reviews, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  4. Frontiers in pharmacology · 2026
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  10. Article
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  12. Creatine in women's health: bridging the gap from menstruation through pregnancy to menopause.Journal of the International Society of Sports Nutrition · 2025
    Review
  13. Creatine monohydrate supplementation for older adults and clinical populations.Journal of the International Society of Sports Nutrition · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 6 institutions in 2 countries.

Konstantinos Prokopidisis with the Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom.ORCID 0000-0002-6264-9388
Panagiotis Giannosare with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom.ORCID 0000-0003-1037-1983
Konstantinos K Triantafyllidisare with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom.ORCID 0000-0002-3858-4473
Konstantinos S Kechagiasare with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom.ORCID 0000-0001-6681-8479
Scott C Forbesis with the Department of Physical Education Studies, Faculty of Education, Brandon University, Brandon, Manitoba, Canada.ORCID 0000-0001-6896-5552
Darren G Candowis with the Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada.
Brandon University · CAChelsea and Westminster Hospital NHS Foundation Trust · GBImperial College London · GBMusgrove Park Hospital · GBUniversity of Liverpool · GBUniversity of Regina · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextFrom an energy perspective, the brain is very metabolically demanding. It is well documented that creatine plays a key role in brain bioenergetics. There is some evidence that creatine supplementation can augment brain creatine stores, which could increase memory.

objectiveA systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to determine the effects of creatine supplementation on memory performance in healthy humans. DATA SOURCES: The literature was searched through the PubMed, Web of Science, Cochrane Library, and Scopus databases from inception until September 2021. DATA EXTRACTION: Twenty-three eligible RCTs were initially identified. Ten RCTs examining the effect of creatine supplementation compared with placebo on measures of memory in healthy individuals met the inclusion criteria for systematic review, 8 of which were included in the meta-analysis. DATA ANALYSIS: Overall, creatine supplementation improved measures of memory compared with placebo (standard mean difference [SMD] = 0.29, 95%CI, 0.04-0.53; I2 = 66%; P = 0.02). Subgroup analyses revealed a significant improvement in memory in older adults (66-76 years) (SMD = 0.88; 95%CI, 0.22-1.55; I2 = 83%; P = 0.009) compared with their younger counterparts (11-31 years) (SMD = 0.03; 95%CI, -0.14 to 0.20; I2 = 0%; P = 0.72). Creatine dose (≈ 2.2-20 g/d), duration of intervention (5 days to 24 weeks), sex, or geographical origin did not influence the findings.

conclusionCreatine supplementation enhanced measures of memory performance in healthy individuals, especially in older adults (66-76 years). SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. 42021281027.

Indexed as

CreatineDietary SupplementsAgedCognitionHumansRandomized Controlled Trials as TopicCreatineageingcognitioncreatine monohydratememorynutrition

Identifiers

PMID35984306
PMCPMC9999677
OpenAlexW4294349271

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.