SynthesisFrontiers in nutrition2022
Effect of prebiotics, probiotics, and synbiotics on gastrointestinal outcomes in healthy adults and active adults at rest and in response to exercise-A systematic literature review.
Synthesis in Frontiers in nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
25 citing papers in PubMed, 4 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- The Effect of Probiotic Supplementation on Cytokine Modulation in Athletes After a Bout of Exercise: A Systematic Review and Meta-Analysis.Sports medicine - open · 2025Pooled it
- Sports Dietitians Australia and Ultra Sports Science Foundation Joint Position Statement: A Practitioner Guide to the Prevention and Management of Exercise-Associated Gastrointestinal Perturbations and Symptoms.Sports medicine (Auckland, N.Z.) · 2025Guideline
- The Effect of Prebiotics and Probiotics on Levels of Depression, Anxiety, and Cognitive Function: A Meta-Analysis of Randomized Clinical Trials.Brain and behavior · 2025Pooled it
- Efficacy of probiotic, prebiotic, and synbiotics supplements in individuals with anemia: a systematic review and meta-analysis of randomized controlled trials.BMC gastroenterology · 2024Pooled it
- Increasing gut short-chain fatty acids protects intestinal barrier function but does not spare muscle glycogen or impact aerobic performance.The Journal of physiology · 2026Trial
- Trial
- A comprehensive review of the physiology and evidence base to guide the use of ergogenic and medical supplements for enhanced cycling performance.Journal of the International Society of Sports Nutrition · 2026Review
- Mechanistic insights into probiotic modulation of the gut-immune axis and their role as sustainable antibiotic alternatives in poultry production: An integrative review.Veterinary world · 2026Article
- Prebiotic BimunoExperimental physiology · 2026Article
- Selenium-Biofortified Probiotics: A Synergistic Microbial-Nutritional Strategy Against Exercise-Induced Stress.Nutrients · 2026Review
- Probiotic and Prebiotic Supplementation for Gastrointestinal Discomfort in Chronic Spinal Cord Injury (PRO-GIDSCI): A Randomized Controlled Crossover Trial Protocol.Methods and protocols · 2026Article
- From gut microbiota dysbiosis to immune dysregulation: pathogenic mechanisms and emerging therapeutic perspectives in pediatric asthma.Frontiers in immunology · 2026Review
- The role of the early-life gut microbiome in childhood asthma.Gut microbes · 2025Review
- Alginate oligosaccharides in the food industry: emerging functional roles, health benefits, and technological applications - Review.Food chemistry: X · 2025Review
- Nutraceuticals for Gut-Brain Axis Health: A Novel Approach to Combat Malnutrition and Future Personalised Nutraceutical Interventions.Nutrients · 2025Review
- Assessing the Impact of Probiotic Consumption on Gastrointestinal Health in Saudi Arabia: a Cross-Sectional Study.Materia socio-medica · 2025Article
- Fecal microbiota transplantation is a promising therapy for kidney diseases.Frontiers in medicine · 2025Review
- Probiotics and eating disorders: a systematic review of humans and animal model studies.Journal of eating disorders · 2024Review
- AG1Microorganisms · 2024Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: A systematic literature search was undertaken to assess the impact of pre-, pro-, and syn-biotic supplementation on measures of gastrointestinal status at rest and in response to acute exercise. Methods: Six databases (Ovid MEDLINE, EMBASE, Cinahl, SportsDISCUS, Web of Science, and Scopus) were used. Included were human research studies in healthy sedentary adults, and healthy active adults, involving supplementation and control or placebo groups. Sedentary individuals with non-communicable disease risk or established gastrointestinal inflammatory or functional diseases/disorders were excluded. Results: A total of Discussion: Synbiotic outcomes resembled probiotics, likely due to the minimal dose of prebiotic included. Methodological issues and high risk of bias were identified in several studies, using the Cochrane Risk of Bias Assessment Tool. A major limitation in the majority of included studies was the lack of a comprehensive approach of well-validated biomarkers specific to gastrointestinal outcomes and many included studies featured small sample sizes. Prebiotic supplementation can influence gut microbial composition and SCFA concentration; whereas probiotics increase the supplemented species-strain, with minimal effect on SCFA, and no effect on any other gastrointestinal status marker at rest. Probiotic and synbiotic supplementation does not substantially reduce epithelial injury and permeability, systemic endotoxin and inflammatory cytokine profiles, or GIS in response to acute exercise.
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Registered trials
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.