SynthesisAmino acids2024
A systematic review and meta-analysis of clinical trials on the effects of glutamine supplementation on gut permeability in adults.
Synthesis in Amino acids, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis 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
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Strategies to Maximize the Benefits of Evidence-Based Enteral Nutrition: A Narrative Review.Nutrients · 2025Pooled it
- Dietary management of normoalbuminaemic canine chronic enteropathies.The Journal of small animal practice · 2026Review
- The Gastrointestinal Barrier-Mechanisms of Barrier Dysfunction in Liver Cirrhosis and Spontaneous Bacterial Peritonitis.Biomedicines · 2026Review
- Targeting Gut Dysbiosis and Short-Chain Fatty Acid Deficiency in Chronic Eczema: A Case Report.Integrative medicine (Encinitas, Calif.) · 2026Article
- Glutamine Supplementation and Exercise: A Narrative Review of Biochemical Mechanisms and Timing Strategies.Medicina (Kaunas, Lithuania) · 2026Review
- From mechanisms to therapeutics: molecular insights into gastrointestinal injury under high-altitude hypoxia.Frontiers in microbiology · 2026Review
- Bone Broth Benefits: How Its Nutrients Fortify Gut Barrier in Health and Disease.Digestive diseases and sciences · 2025Review
- Macronutrients as Regulators of Intestinal Epithelial Permeability: Where Do We Stand?Comprehensive reviews in food science and food safety · 2025Review
- A Cascade of Microbiota-Leaky Gut-Inflammation- Is it a Key Player in Metabolic Disorders?Current obesity reports · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The gastrointestinal tract's epithelial barrier plays a crucial role in maintaining health. This study aims to investigate the impact of glutamine supplementation on intestinal permeability, considering its importance for immune function and nutrient absorption. The study adhered to the PRISMA protocol for systematic reviews and meta-analyses. A systematic search was performed in four databases (PubMed, Scopus, Web of Science, and Google Scholar) until April 2023 to identify clinical trials on glutamine supplementation and gastrointestinal permeability. Eligibility criteria included randomized placebo-controlled trials measuring gut permeability post-glutamine supplementation. Studies were included regardless of language or publication date. Data extraction involved study characteristics, intervention details, and outcomes. Quality assessment was performed using the Cochrane tool, and statistical analysis utilized mean differences and standard deviations with a random effects model. Subgroup analysis was conducted to explore heterogeneity. The systematic review and meta-analysis included 10 studies from 1998 to 2014 with 352 participants. A total of 216 patients were enrolled in the intervention group, and 212 in the control group. The mean participant age was 46.52 years. The participants had different types of diseases in terms of their health status. Overall, glutamine supplementation did not significantly affect intestinal permeability (WMD: -0.00, 95% CI -0.04, 0.03). Subgroup analysis showed a significant reduction in intestinal permeability with doses over 30g/day (WMD: -0.01, 95% CI -0.10, -0.08). The glutamine supplements were administered orally in all included studies. The meta-analysis demonstrated a significant reduction in intestinal permeability with glutamine supplementation exceeding 30 mg/day for durations of less than 2 weeks. Further investigations with varying dosages and patient populations are warranted to enhance understanding and recommendations regarding glutamine supplementation's effects on gut permeability.
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Identifiers
What Socratic holds
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 Socratic graph.