Evidence map›Paper›PMID 40507139›Full record

Trial reportNutrients2025

γ-Aminobutyric Acid Intake Improves Psychological State and Performance in Esports: A Randomized, Placebo-Controlled, Double-Blind Crossover Study.

Yoshihiro Hara, Utano Nakamura, Keita Koga, Yusuke Yamashita, Youngil Kim, Goichi Hagiwara, Ryousuke Furukado

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Nutrients, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Yoshihiro HaraR&D Division, Pharma Foods International Co., Ltd., 1-49, Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.
Utano NakamuraR&D Division, Pharma Foods International Co., Ltd., 1-49, Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID 0000-0001-9487-0522
Keita KogaR&D Division, Pharma Foods International Co., Ltd., 1-49, Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.
Yusuke YamashitaR&D Division, Pharma Foods International Co., Ltd., 1-49, Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.ORCID 0009-0000-6384-3193
Youngil KimR&D Division, Pharma Foods International Co., Ltd., 1-49, Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan.
Goichi HagiwaraFaculty of Human Science, Department of Sport Science and Health, Kyushu Sangyo University, 2-3-1 Matsukadai, Higashi-ku, Fukuoka 813-8503, Japan.ORCID 0000-0003-2203-0625
Ryousuke FurukadoFaculty of Engineering, Integrated System Engineering, Nishinippon Institute of Technology, 1-11, Aratsu, Miyako-gun, Fukuoka 800-0394, Japan.ORCID 0009-0008-6731-4457

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Athletic Performancegamma-Aminobutyric AcidAffectCognitionCross-Over StudiesDietary SupplementsDouble-Blind MethodHumansMaleYoung Adultgamma-Aminobutyric AcidesportsGABAperformancepsychological stateγ-aminobutyric acid

Identifiers

PMID40507139
PMCPMC12157149

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.