Guideline · 2025
International consensus statement on microbiome testing in clinical practice
Porcari S · Lancet Gastroenterol Hepatol
Read the PubMed recordThe evidence library
Explore digestive-health research questions and a searchable reference library, with original PubMed links, study labels and a clear warning for a retracted paper.
Questions to bring to the research
Which stool-form descriptions were studied, in whom, and how did the researchers measure transit or agreement between observers?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
How was bowel frequency recorded, which population was included, and how much variation did the study describe?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Which method measured transit, which part of the digestive tract did it cover, and what do the results actually describe?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Which fiber, dose and patient group were studied? What were the outcomes and limitations, rather than a general promise about all fiber?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
What did a day-by-day record capture compared with recalled symptoms, and what could neither method establish about causes?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Does the paper study malabsorption, reported symptoms or both? Which measurements support the conclusion?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
How did the study separate gluten from other ingredients, expectations and existing diagnoses?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Who does the recommendation apply to, how strong is the supporting evidence, and what supervision or limits does the guidance describe?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Were stress and symptoms recorded at the same time or recalled later? Does the design distinguish association from causation?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
How was the initial infection established, how long were people followed, and how was the later diagnosis defined?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
How did the researchers define and measure bloating or distension? Which findings apply to the people actually studied?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
What does the test measure, how reproducible is the result, and what evidence supports using it for an individual decision?
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
Check which method and population were studied, what the results support and which questions remain open.
Use the reference desk below to inspect original records. A research question is not a diagnosis or proof of Get Regular’s performance.
The reference desk
Browse the bibliography by title, author, year or topic. This is a starting point for reading, rather than a systematic review, a quality score or a list of product endorsements. The original record carries the study’s own methods and limitations.
81 of 81 non-retracted references
Guideline · 2025
Porcari S · Lancet Gastroenterol Hepatol
Read the PubMed recordGuideline · 2023
Chang L · Am J Gastroenterol
Read the PubMed recordGuideline · 2023
Moshiree B · Gastroenterology
Read the PubMed recordGuideline · 2021
Lacy BE · Am J Gastroenterol
Read the PubMed recordGuideline · 2020
Pimentel M · Am J Gastroenterol
Read the PubMed recordGuideline · 2019
Barbara G · Gastroenterology
Read the PubMed recordGuideline · 2018
Arasaradnam RP · Gut
Read the PubMed recordSystematic review / meta-analysis · 2025
Cuffe MS · Lancet Gastroenterol Hepatol
Read the PubMed recordSystematic review / meta-analysis · 2021
Barberio B · Lancet Gastroenterol Hepatol
Read the PubMed recordSystematic review / meta-analysis · 2019
Varjú P · Neurogastroenterol Motil
Read the PubMed recordSystematic review / meta-analysis · 2018
Dionne J · Am J Gastroenterol
Read the PubMed recordSystematic review / meta-analysis · 2017
Klem F · Gastroenterology
Read the PubMed recordSystematic review / meta-analysis · 2010
Shaukat A · Ann Intern Med
Read the PubMed recordSystematic review / meta-analysis · 2010
Suchy FJ · NIH Consens State Sci Statements
Read the PubMed recordRandomized trial · 2025
Seiler CL · Lancet Gastroenterol Hepatol
Read the PubMed recordRandomized trial · 2020
Gunn D · Am J Clin Nutr
Read the PubMed recordRandomized trial · 2018
Skodje GI · Gastroenterology
Read the PubMed recordRandomized trial · 2013
Biesiekierski JR · Gastroenterology
Read the PubMed recordRandomized trial · 2010
Bonnema AL · J Am Diet Assoc
Read the PubMed recordRandomized trial · 2008
Ostojic SM · Res Sports Med
Read the PubMed recordRandomized trial · 2003
Dainese R · Gut
Read the PubMed recordRandomized trial · 1998
Iacono G · N Engl J Med
Read the PubMed recordRandomized trial · 1997
Lewis SJ · Scand J Gastroenterol
Read the PubMed recordClinical study · 2025
Chen YJ · Am J Clin Nutr
Read the PubMed recordClinical study · 2019
Jones MP · Eur J Gastroenterol Hepatol
Read the PubMed recordClinical study · 2016
Blake MR · Aliment Pharmacol Ther
Read the PubMed recordClinical study · 2015
Wang YT · Aliment Pharmacol Ther
Read the PubMed recordClinical study · 2001
Rao SS · Am J Physiol Gastrointest Liver Physiol
Read the PubMed recordClinical study · 1987
Metcalf AM · Gastroenterology
Read the PubMed recordReview · 2026
Corsetti M · Gastroenterology
Read the PubMed recordReview · 2026
Goyal MK · Indian J Gastroenterol
Read the PubMed recordReview · 2021
Antonio J · J Int Soc Sports Nutr
Read the PubMed recordReview · 2021
Lacy BE · Clin Gastroenterol Hepatol
Read the PubMed recordReview · 2019
Misselwitz B · Gut
Read the PubMed recordReview · 2017
Boushey CJ · Proc Nutr Soc
Read the PubMed recordReview · 2017
Malagelada JR · Am J Gastroenterol
Read the PubMed recordReview · 2014
Qin HY · World J Gastroenterol
Read the PubMed recordReview · 2013
Eswaran S · Am J Gastroenterol
Read the PubMed recordStudy · 2026
Servetas SL · Commun Biol
Read the PubMed recordStudy · 2026
Wu J · Am J Gastroenterol
Read the PubMed recordStudy · 2026
Yunusova A · Clin Gastroenterol Hepatol
Read the PubMed recordStudy · 2025
· Lancet Gastroenterol Hepatol
Read the PubMed recordStudy · 2025
Fridolfsson J · Curr Dev Nutr
Read the PubMed recordStudy · 2025
O'Hara C · Nutrients
Read the PubMed recordStudy · 2025
Zhou J · Neurogastroenterol Motil
Read the PubMed recordStudy · 2024
Chotwanvirat P · J Med Internet Res
Read the PubMed recordStudy · 2024
Fagan A · Am J Gastroenterol
Read the PubMed recordStudy · 2024
Rodriguez J · Microbiome
Read the PubMed recordStudy · 2023
Almario CV · Gastroenterology
Read the PubMed recordStudy · 2023
Oh JE · Clin Gastroenterol Hepatol
Read the PubMed recordStudy · 2023
Rubio-Tapia A · Am J Gastroenterol
Read the PubMed recordStudy · 2022
Brandler J · Clin Gastroenterol Hepatol
Read the PubMed recordStudy · 2022
Pimentel M · Am J Gastroenterol
Read the PubMed recordStudy · 2021
Asnicar F · Gut
Read the PubMed recordStudy · 2021
Sperber AD · Gastroenterology
Read the PubMed recordStudy · 2020
Nandhra GK · Neurogastroenterol Motil
Read the PubMed recordStudy · 2020
Oh SJ · Am J Gastroenterol
Read the PubMed recordStudy · 2020
Palsson OS · Gastroenterology
Read the PubMed recordStudy · 2018
Mitsuhashi S · Am J Gastroenterol
Read the PubMed recordStudy · 2017
Molina-Infante J · Clin Gastroenterol Hepatol
Read the PubMed recordStudy · 2016
Mearin F · Gastroenterology
Read the PubMed recordStudy · 2016
Zia J · Clin Transl Gastroenterol
Read the PubMed recordStudy · 2014
Manichanh C · Gut
Read the PubMed recordStudy · 2013
Böhn L · Am J Gastroenterol
Read the PubMed recordStudy · 2011
Villoria A · Am J Gastroenterol
Read the PubMed recordStudy · 2011
Walter SA · Dig Dis Sci
Read the PubMed recordStudy · 2006
Houghton LA · Gastroenterology
Read the PubMed recordStudy · 2005
Müller-Lissner SA · Eur J Gastroenterol Hepatol
Read the PubMed recordStudy · 2003
Powers ME · J Athl Train
Read the PubMed recordStudy · 2002
Walter S · Scand J Gastroenterol
Read the PubMed recordStudy · 2001
Simrén M · Digestion
Read the PubMed recordStudy · 1998
Jarrett M · Nurs Res
Read the PubMed recordStudy · 1997
Levy RL · J Behav Med
Read the PubMed recordStudy · 1997
Voderholzer WA · Am J Gastroenterol
Read the PubMed recordStudy · 1996
Degen LP · Gut
Read the PubMed recordStudy · 1996
Degen LP · Gut
Read the PubMed recordStudy · 1994
Mykkänen HM · Scand J Gastroenterol
Read the PubMed recordStudy · 1992
Evans RC · Int J Colorectal Dis
Read the PubMed recordStudy · 1992
Heaton KW · Gut
Read the PubMed recordStudy · 1972
Levitt MD · N Engl J Med
Read the PubMed recordStudy · 1965
Connell AM · Br Med J
Read the PubMed recordA reference is a way into the research, not the last word. Open the original record to see the population, methods, findings and limits behind a claim.
This is a bibliographic reference desk, rather than a systematic review or a rating of the evidence. Study labels help you navigate; a label alone does not tell you how well a study was designed or whether its findings apply to you.
Research on stool form, food diaries or an AI system concerns the method that was actually studied. Inclusion here does not mean the paper tested Get Regular. The known retracted record is hidden from the main list and can be inspected separately with a warning.