Trial reportThe Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology2019
Effect of administering kefir on the changes in fecal microbiota and symptoms of inflammatory bowel disease: A randomized controlled trial.
Trial report in The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 15 of them syntheses that pooled it.
What it found
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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
96 citing papers in PubMed, 15 syntheses or guidelines pooled it, 181 citations in OpenAlex.
- Kefir: A Potential Gut Microbiota Modulator: A Systematic Review of Human Interventional Studies.MicrobiologyOpen · 2026Pooled it
- Study Design Complexity and Participant Completion in Dietary Trials for Inflammatory Bowel Disease: A Systematic Review and Metaresearch Study.Advances in nutrition (Bethesda, Md.) · 2026Pooled it
- The Effect of Kefir Consumption on Blood Pressure and C-Reactive Protein: A Systematic Review and Meta-Analysis of Randomised Controlled Trials.Endocrinology, diabetes & metabolism · 2025Pooled it
- Targeting gut microbiota dysbiosis in inflammatory bowel disease: a systematic review of current evidence.Frontiers in medicine · 2025Pooled it
- Efficacy and safety of gut microbiota-based therapies in autoimmune and rheumatic diseases: a systematic review and meta-analysis of 80 randomized controlled trials.BMC medicine · 2024Pooled it
- Efficacy of fermented foods in irritable bowel syndrome: a systematic review and meta-analysis of randomized controlled trials.Frontiers in nutrition · 2024Pooled it
- Interventions for the management of abdominal pain in Crohn's disease and inflammatory bowel disease.The Cochrane database of systematic reviews · 2021Pooled it
- Clinical effects and gut microbiota changes of using probiotics, prebiotics or synbiotics in inflammatory bowel disease: a systematic review and meta-analysis.European journal of nutrition · 2021Pooled it
- Interventions for the management of abdominal pain in ulcerative colitis.The Cochrane database of systematic reviews · 2021Pooled it
- Colonization Ability and Impact on Human Gut Microbiota of Foodborne Microbes From Traditional or Probiotic-Added Fermented Foods: A Systematic Review.Frontiers in nutrition · 2021Pooled it
- Bioactive Compounds from Kefir and Their Potential Benefits on Health: A Systematic Review and Meta-Analysis.Oxidative medicine and cellular longevity · 2021Pooled it
- The effects of dairy and dairy derivatives on the gut microbiota: a systematic literature review.Gut microbes · 2020Pooled it
- Probiotics for induction of remission in Crohn's disease.The Cochrane database of systematic reviews · 2020Pooled it
- Probiotics for maintenance of remission in ulcerative colitis.The Cochrane database of systematic reviews · 2020Pooled it
- Probiotics for induction of remission in ulcerative colitis.The Cochrane database of systematic reviews · 2020Pooled it
- Effects of kefir on symptoms, sleep, and gut microbiota in children with ADHD: a randomised controlled trial.BMC psychiatry · 2025Trial
- Trial
- Effect of the Intake of a Traditional Mexican Beverage Fermented with Lactic Acid Bacteria on Academic Stress in Medical Students.Nutrients · 2021Trial
- Effects of Regular Kefir Consumption on Gut Microbiota in Patients with Metabolic Syndrome: A Parallel-Group, Randomized, Controlled Study.Nutrients · 2019Trial
- Kefir and Its By-Products Supplementation Reduces Inflammation and Oxidative Stress, Improves Intestinal Barrier Integrity, and Modulates the Gut Microbiota in Animal Models of Inflammatory Bowel Disease: A Systematic Review.Probiotics and antimicrobial proteins · 2026Review
36 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsKefir is a kind of fermented probiotic dairy product. The objective of the present study was to investigate the effects of kefir consumption on the fecal microflora and symptoms of patients with inflammatory bowel disease (IBD). MATERIALS AND
methodsKefir was serially diluted and inoculated into de Man, Rogosa, and Sharpe agar and incubated at 37°C for 48 to 72 h under anaerobic conditions. This was a single-center, prospective, open-label randomized controlled trial. Forty-five patients with IBD were classified into two groups: 25 for treatment and 20 for control. A 400 mL/day kefir was administered to the patients for 4 weeks day and night. Their stool Lactobacillus, Lactobacillus kefiri, content was quantitated by real-time quantitative polymerase chain reaction before and after consumption. Abdominal pain, bloating, stool frequency, stool consistency, and feeling good scores were recorded in diaries daily by the patients.
resultsA 5×107 CFU/mL count of lactic acid bacteria colony forming units was found in a kefir sample as the total average count. Lactobacillus bacterial load of feces of all subjects in the treatment group was between 104 and 109 CFU/g, and the first and last measurements were statistically significant (p=0.001 in ulcerative colitis and p=0.005 in Crohn's disease (CD)). The L. kefiri bacterial load in the stool of 17 subjects was measured as between 104 and 106 CFU/g. For patients with CD, there was a significant decrease in erythrocyte sedimentation rate and C-reactive protein, whereas hemoglobin increased, and for the last 2 weeks, bloating scores were significantly reduced (p=0.012), and feeling good scores increased (p=0.032).
conclusionAccording to our data, kefir consumption may modulate gut microbiota, and regular consumption of kefir may improve the patient's quality of life in the short term.
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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.