SynthesisEuropean journal of nutrition2021
Long-term effects of increasing omega-3, omega-6 and total polyunsaturated fats on inflammatory bowel disease and markers of inflammation: a systematic review and meta-analysis of randomized controlled trials.
Synthesis in European journal of nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 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
36 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.
- Omega-6 sparing effects of parenteral lipid emulsions-an updated systematic review and meta-analysis on clinical outcomes in critically ill patients.Critical care (London, England) · 2022Pooled it
- Article
- Precision nutrition for the prevention and management of inflammatory bowel disease.Nature reviews. Gastroenterology & hepatology · 2026Review
- Review
- Docosahexaenoic acid alleviates DSS-induced colitis by regulating the gut microbiota and restoring the gut barrier.International microbiology : the official journal of the Spanish Society for Microbiology · 2026Article
- Fatty Acids as Prebiotics and Their Role in Antibiofilm Activity.Antibiotics (Basel, Switzerland) · 2026Review
- The role of dietary factors in the prevention and management of inflammatory bowel disease: a comprehensive review.Nutrition & metabolism · 2025Review
- No causal relationship between polyunsaturated fatty acids and inflammatory bowel disease: A Mendelian randomization study.Medicine · 2025Article
- Fibroblast lipid metabolism through ACSL4 regulates epithelial sensitivity to ferroptosis in IBD.Nature metabolism · 2025Article
- Temporal and Spatial Metabolic Shifts Revealing the Transition from Ulcerative Colitis to Colitis-Associated Colorectal Cancer.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Inflammatory bowel diseases and the low-FODMAP diet: benefits and challenges in therapy.Frontiers in nutrition · 2025Review
- The Key Nutrients in the Mediterranean Diet and Their Effects in Inflammatory Bowel Disease: A Narrative Review.Nutrients · 2024Review
- Underneath the Gut-Brain Axis in IBD-Evidence of the Non-Obvious.International journal of molecular sciences · 2024Review
- Krill Oil and Its Bioactive Components as a Potential Therapy for Inflammatory Bowel Disease: Insights from In Vivo and In Vitro Studies.Biomolecules · 2024Review
- The Effectiveness of Transcranial Direct Current Stimulation (tDCS) and Omega-3 on Food Craving, Executive Functions, Weight, and Depressive Symptoms in Patients with Depression and Overweight: A Randomized Controlled Trial.Iranian journal of psychiatry · 2024Article
- Fat and fatty acids - a scoping review for Nordic Nutrition Recommendations 2023.Food & nutrition research · 2024Article
- Effects of host modulation through omega-3 dietary supplementation on inflammatory outcomes in periodontitis: a scoping review.Einstein (Sao Paulo, Brazil) · 2024Article
- PUFAs add fuel to Crohn's disease-associated AIEC-induced enteritis by exacerbating intestinal epithelial lipid peroxidation.Gut microbes · 2023Article
- Sex differences in the association between plasma polyunsaturated fatty acids levels and moderate-to-severe plaque psoriasis severity: a cross-sectional and longitudinal study.Journal of translational medicine · 2023Article
- Molecular mechanisms of ferroptosis and relevance to inflammation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimEffects of long-chain omega-3 (LCn3) and omega-6 fatty acids on prevention and treatment of inflammatory bowel diseases (IBD, including Crohn's Disease, CD and ulcerative colitis, UC), and inflammation are unclear. We systematically reviewed long-term effects of omega-3, omega-6 and total polyunsaturated fats (PUFA) on IBD diagnosis, relapse, severity, pharmacotherapy, quality of life and key inflammatory markers.
methodsWe searched Medline, Embase, Cochrane CENTRAL, and trials registries, including RCTs in adults with or without IBD comparing higher with lower omega-3, omega-6 and/or total PUFA intake for ≥ 24 weeks that assessed IBD-specific outcomes or inflammatory biomarkers.
resultsWe included 83 RCTs (41,751 participants), of which 13 recruited participants with IBD. Increasing LCn3 may reduce risk of IBD relapse (RR 0.85, 95% CI 0.72-1.01) and IBD worsening (RR 0.85, 95% CI 0.71-1.03), and reduce erythrocyte sedimentation rate (ESR, SMD - 0.23, 95% CI - 0.44 to - 0.01), but may increase IBD diagnosis risk (RR 1.10, 95% CI 0.63-1.92), and faecal calprotectin, a specific inflammatory marker for IBD (MD 16.1 μg/g, 95% CI - 37.6 to 69.8, all low-quality evidence). Outcomes for alpha-linolenic acid, omega-6 and total PUFA were sparse, but suggested little or no effect where data were available.
conclusionThis is the most comprehensive meta-analysis of RCTs investigating long-term effects of omega-3, omega-6 and total PUFA on IBD and inflammatory markers. Our findings suggest that supplementation with PUFAs has little or no effect on prevention or treatment of IBD and provides little support for modification of long-term inflammatory status.
Indexed as
Identifiers
What OpenQuestion 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 OpenQuestion graph.