Tier 2 — strong

The effects of quercetin supplementation on body composition, exercise performance and muscle damage indices in athletes

Gholamreza Askari, Reza Ghiasvand, Zamzam Paknahad, Jahangir Karimian, Katayoun Rabiee, Gholamreza Sharifirad, Awat Feizi
International journal of preventive medicine 2013 4(1):21-6

Bibliography

PubMed
PMID 23412140
PubMed Central
PMC3570907
Funding
Funding was not specified in the indexed record or the disclosure metadata available for this entry.
Competing interests
Reported disclosure: None declared.

Study snapshot

DesignRandomized double-blind placebo-controlled four-arm athlete trial
ModelHuman intervention research
Sample60 male student athletes
InterventionQuercetin 500 mg/day with or without vitamin C 250 mg/day, or comparator arms
Duration8 weeks
EndpointsSource-specific outcomes described in the key findings

What the study showed, in plain terms

Published in 2013, this source examined exercise and recovery. Design: Randomized double-blind placebo-controlled four-arm athlete trial. Sample/model: 60 male student athletes. The exposure or intervention was Quercetin 500 mg/day with or without vitamin C 250 mg/day, or comparator arms. Follow-up or treatment period: 8 weeks.

Selected body-composition and metabolic measures increased within the quercetin arm; oxygen-uptake changes were not significant.

Multiple outcomes and within-group emphasis limit causal inference. This appears related to other 60-person quercetin/vitamin-C athlete publications and should not be assumed independent.

Continue with Quercetin Data Center

For topic-level interpretation, read Quercetin for Exercise: Performance, Recovery and Muscle. This is a related guide; the citation panel separately identifies articles that directly cite this paper.

Key findings

  • Selected body-composition and metabolic measures increased within the quercetin arm; oxygen-uptake changes were not significant.
  • The recorded outcome domains were Source-specific outcomes described in the key findings.
  • The result applies to the tested exposure: Quercetin 500 mg/day with or without vitamin C 250 mg/day, or comparator arms; 8 weeks.

What this study can and cannot tell us

  • Multiple outcomes and within-group emphasis limit causal inference. This appears related to other 60-person quercetin/vitamin-C athlete publications and should not be assumed independent.
  • An individual controlled trial must be interpreted alongside its comparator, sample size, endpoint selection and independent replication. It does not validate a different commercial formulation or a general longevity claim.
  • Companion or correction records are linked below. They should not be counted automatically as independent replications; see the individual source notes for the relationship.
  • Source basis: Source check: PubMed abstract and indexed metadata; full methods were not independently confirmed for this entry. Missing method details, funding information or participant denominators are not inferred.

Related papers in the corpus

Tier 2
Quercetin and vitamin C supplementation: effects on lipid profile and muscle damage in male athletes
Gholamreza Askari et al. · International journal of preventive medicine · 2013
Tier 2
Does quercetin and vitamin C improve exercise performance, muscle damage, and body composition in male athletes?
Gholamreza Askari et al. · Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2012
Tier 2
The effect of quercetin supplementation on selected markers of inflammation and oxidative stress
Gholamreza Askari et al. · Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2012
Tier 1
Quercetin supplementation promotes recovery after exercise-induced muscle damage: a systematic review and meta-analysis of randomized controlled trials
Daniel Rojano-Ortega et al. · Biology of sport · 2023
Tier 2
Effects of quercetin supplementation on endurance performance and maximal oxygen consumption: a meta-analysis
Denis M Pelletier et al. · International journal of sport nutrition and exercise metabolism · 2013

Editorial review

Reviewed by the Biohack Blueprint research team

Last verified

Dr. Khaled Mahmoud, MBBChCritical Care Medicine, Longevity Science & Editorial Direction Dr. Amr Yasser, PhDCardiometabolic, Musculoskeletal, Gut & Bioavailability Dr. Abdulla Mostafa, PhDCellular Senescence, Neurological, Mitochondrial & Brain-Ageing Biology