Gastrointestinal Health

This hub offers a comprehensive resource on gastrointestinal health, digestive diseases, and the human microbiome, drawing together authoritative articles on basic science, clinical management, and emerging research. The collection addresses the pathophysiology, diagnosis, and treatment of major gastrointestinal disorders, including irritable bowel syndrome, celiac disease, inflammatory bowel disease, and gastroesophageal reflux, while also exploring surgical, dietary, and pharmacological interventions. Special emphasis is given to the role of the gut microbiome in health and disease, including its influence on immunity, metabolism, neurological function, and response to therapy. Readers will also find up-to-date insights into microbiome-related interventions, such as fecal microbiota transplantation, as well as practical guidance for dietary management and prevention. This hub serves as a trusted reference for clinicians, researchers, and individuals seeking an evidence-based understanding of digestive and microbiome science.

Can you Treat a Food Allergy by Altering the Gut Microbiome?

There is a relationship between gut microbiome and allergy which may allow some children to outgrow their food allergy.

After Gastric Bypass Surgery

What is Ulcerative Colitis?

Diagnosis of Irritable Bowel Syndrome

Gastric Carcinoma

Gastroparesis Diagnosis

Inflammatory Bowel Disease (IBD) in Pregnancy

Do Serotonin and Antidepressants Affect the Microbiome?

Gastrointestinal Stromal Tumor (GIST) Signs and Symptoms

Gastroparesis Causes

Low FODMAP Diet

What is Gastroparesis?

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Gastric Bypass Types

Fecal Microbiota Transplant

What is Gastroschisis?

Irritable Bowel Syndrome (IBS) Food Triggers

Sarin Classification of Gastric Varices

Gut Microbiota

Treatment of Irritable Bowel Syndrome

Gastrointestinal Stromal Tumor Pathogenesis

Gastric Bypass Complications

What does Sleeve Gastrectomy Involve?

High FODMAP Foods and Low FODMAP Food Alternatives

Gastric Bypass Criteria

Dysbiosis and Aging

Irritable Bowel Syndrome (IBS) and Diet

Treatment and Prognosis for Intestinal Malrotation

Microbiome-Host Cell Interactions

Effects of a Gluten-Free Diet on the Gut Microbiota

Gastritis Causes

Irritable Bowel Syndrome (IBS) and Fibromyalgia

Fecal Microbiota Transplant Regulation

Irritable Bowel Syndrome (IBS) and Psychiatric Illness

Gastric Bypass Benefits

Irritable Bowel Syndrome (IBS) Research

The Microbiome and Aging

Celiac Disease Screening

Causes of Bleeding in the Upper and Lower Gastrointestinal Tract

Is There a Link Between Migraine and the Gut Microbiome?

Ulcerative Colitis Causes

Gut-on-a-Chip to Model Coeliac Disease

Microbiome and Disease

Irritable Bowel Syndrome (IBS) and Infections

Risk Factors for Small Intestinal Bacterial Overgrowth

Parkinson's Disease and the Gut Microbiome

Irritable Bowel Syndrome (IBS) and Stress Response

Gastroschisis Prognosis

Celiac Disease Treatment

What is Celiac Disease?

Diabetic Gastroparesis

Conjunctiva microbiota

Gastric Varices - Signs and Symptoms

Alzheimer's Disease and the Microbiome

Human Microbiome Project (HMP)

Gastritis Diagnosis

How to Recover Gut Health After Clostridium difficile Infection

Irritable Bowel Syndrome (IBS) Comorbidities

What is Irritable Bowel Syndrome?

Gastrointestinal Bleeding Symptoms

Microbiome and Cancer

FODMAPs and Irritable Bowel Syndrome (IBS)

Gastric Varices

Does Wheat Cause Gut Inflammation?

Gastrointestinal Bleeding Treatment

Fermented Foods and Gut Health

Diagnosis of Gastro-Esophageal Reflux Disease (GERD)

Gastrointestinal Stromal Tumor (GIST) Causes

Symptoms of Irritable Bowel Syndrome

Disease Susceptibility and the Microbiome

Antibiotics and the Microbiome

Mechanism of Irritable Bowel Syndrome (IBS)

What is Gastroenterology?

Gastrointestinal Disease and Skin Problems

Functional Gastrointestinal Disorders: Integrating Physiological and Psychological Approaches

Gastroparesis Epidemiology

Probiotics and IBS

Short-Chain Fatty Acids (SCFAs)

Gastroparesis Symptoms

Drug Metabolism and Microbiome

Gastrointestinal Stromal Tumor (GIST) Diagnosis

Gastroschisis Causes

Genetic Factors that Influence Bacterial Diversity in the Human Gut

Gastrointestinal Stromal Tumor (GIST) Treatment

Celiac Disease Pathogenesis

FODMAP Research

What is Gastroenteritis?

Symptoms and Diagnosis of Intestinal Malrotation

Skin Microbiota

Treatment of Gastro-Esophageal Reflux Disease (GERD)

Achievements of the Human Microbiome Project

Causes of Irritable Bowel Syndrome

Human Microbiome

Self-Help for Irritable Bowel Syndrome (IBS)

Crohn's Disease Cause

Mesentery: a new organ?

ERCP (Endoscopic Retrograde Cholangiopancreatography) Overview

What is Gastrointestinal Bleeding?

Symptoms of Gastro-Esophageal Reflux Disease (GERD)

Malrotation of the Gastrointestinal Tract

How Does the Diet Impact Microbiota?

Treatment of Gastric Varices

Inflammatory Bowel Disease and Colorectal Cancer

Dermatitis Herpetiformis and Celiac Disease

Causes of Gastro-Esophageal Reflux Disease (GERD)

Gastritis Treatments

Genetics of Inflammatory Bowel Disease (IBD)

Irritable Bowel Syndrome (IBS) Differential Diagnosis

Celiac Disease Symptoms

Does the Microbiome Interact with the Human Endocrine System?

What is Vaginal Microbiome?

Irritable Bowel Syndrome (IBS) and Exercise

Celiac Disease Diagnosis

Post-Infectious Irritable Bowel Syndrome

Irritable Bowel Syndrome (IBS) Psychological Therapies

What is Gluten?

Gastritis Symptoms

Types of Gastrectomy

Gastroparesis and Diet

Irritable Bowel Syndrome (IBS) Epidemiology

What is a Gastric Bypass?

Is Dermatitis Herpetiformis Caused by Herpes?

Irritable Bowel Syndrome (IBS) Prognosis

What is Gastritis?

Fecal Microbiota Transplant Technique

Oral Microbiota

Dysbiosis and the Microbiome

Gastroparesis Treatments

Latest Gastrointestinal Health News and Research

Blueberries may boost children's memory and mood

Research suggests blueberry compounds could enhance mood and cognitive function in children, yet stronger evidence is required for clinical recommendations.

25 Jun 2026

European project receives €15 million to study phage-based therapies

Bacteria are becoming increasingly resistant to antibiotics. One alternative is treatment with viruses that exclusively infect bacteria, known as phages.

25 Jun 2026

Welbeck Health Partners adopts OMED Health’s home-based SIBO testing pathway across its network

OMED Health ("OMED"), part of Owlstone Medical ("Owlstone"), the global leader in Breath Biopsy® for applications in early disease detection and precision medicine, and Welbeck Health Partners ("Welbeck"), one of the UK's largest specialist outpatient healthcare providers, today announced that Welbeck has adopted OMED Health's home-based Small Intestinal Bacterial Overgrowth (SIBO) breath-testing pathway. The roll out across Welbeck's network follows a three-month evaluation where the pathway was assessed for performance and impact on standard of care.

From Welbeck Health Partners 25 Jun 2026

Study sheds light on why red meat may worsen inflammatory bowel disease

New research sheds light on why red meat may worsen inflammatory bowel disease (IBD) - and how other protein sources could help protect the gut.

24 Jun 2026

Comprehensive gut microbiome analysis reveals robust colorectal cancer signature

Researchers have long suspected that the gut microbiome – the community of bacteria and other microorganisms living in the intestine – is closely linked to colorectal cancer.

24 Jun 2026

Microbes trigger cell death to boost cancer immunotherapy effectiveness

Traditional cancer treatments like chemotherapy and radiotherapy can induce immunogenic cell death (ICD), but their efficacy is often limited by drug resistance, severe off-target toxicity, and immune-related adverse events.

24 Jun 2026

LMU researchers discover new genetic cause of Crohn's disease

A team led by LMU physician Daniel Kotlarz has identified a previously unknown genetic cause of Crohn's disease.

24 Jun 2026

Gut fungi play key role in pediatric allergic diseases development

Two new studies jointly published in Nature: The Clinical Microbiome reveal that certain species of fungi in the gut play a key role in the development of immune dysregulation and some pediatric allergic diseases - and may be promising targets for new therapies.

23 Jun 2026

Accelerated biological aging may drive rising early-onset cancer risk

Cancer is often considered a disease of aging. Older adults are at higher risk because they have had more time to accumulate cellular damage that can trigger tumor formation.

22 Jun 2026

GATA6 loss transforms colorectal cancer cells into metastatic states

Loss of GATA6-a transcription factor that controls which genes are turned on or off-can reprogram colorectal cancer cells into more primitive, adaptable states that can then spread to the liver and establish new tumors, according to Weill Cornell Medicine and Massachusetts Institute of Technology researchers.

22 Jun 2026

Synthetic gut communities reveal how diet rewires the microbiome

Synthetic microbial communities give researchers controlled models for testing how diet reshapes gut microbial ecology, metabolism, and host-relevant responses. The review highlights how SynComs can strengthen causal inference, improve intervention testing, and support future precision nutrition, while noting major challenges in stability, standardization, and ecological realism.

21 Jun 2026

Computer models could design more effective probiotic supplements

Probiotic supplements found in drugstores nationwide contain an assortment of microbes sold for specific health purposes despite limited understanding of the microbes' connections to their marketed use, new University of Virginia School of Medicine research reveals.

18 Jun 2026

Gut microbes may help explain why obesity and type 2 diabetes become harder to reverse

This review describes how gut microbial messengers, including SCFAs, microbiota-modified bile acids, neuroactive metabolites, and extracellular vesicles, may shape obesity and type 2 diabetes through the microbiota-gut-brain axis.

17 Jun 2026

AGA experts highlight benefits and limits of colorectal cancer screening tests

As new colorectal cancer screening guidance draws attention to the growing number of testing options, the American Gastroenterological Association urges patients and primary care providers to understand how those options compare.

17 Jun 2026

WashU study identifies shared target for a new diarrhea vaccine

The bacteria enterotoxigenic E. coli and Shigella together cause hundreds of millions of infections each year and are among the leading causes of diarrheal death, especially in children.

17 Jun 2026

Experts outline a multidisciplinary approach to managing clinical obesity

The rapid rise of GLP-1 medications such as semaglutide and tirzepatide has transformed obesity treatment.

17 Jun 2026

Synthetic biology platform unmasks hidden bacterial targets of bacteriophages

An interdisciplinary team of Rice University researchers has uncovered previously unknown relationships between bacteriophages - viruses that infect bacteria - and their bacterial hosts, offering a powerful new tool for next-generation microbiome engineering.

17 Jun 2026

Gut bacteria may help explain why fatigue appears before illness

A small study of healthy Japanese adults found that fatigue was associated with distinct gut microbiome, microbial gene, and fecal metabolite patterns. The findings suggest fatigue may track with altered microbial energy metabolism and oxidative stress-related functional potential, but larger longitudinal studies are needed to test causality and clinical value.

16 Jun 2026

Study identifies genetic marker associated with severe IBD

In the largest genetic study of inflammatory bowel disease (IBD) traits to date, researchers have identified a genetic marker that is associated with more severe ulcerative colitis and Crohn's disease – the major forms of IBD.

15 Jun 2026

Gut microbes control liver genes by flipping DNA switches

A local research study led by scientists from the A*STAR Genome Institute of Singapore (A*STAR GIS) has uncovered how the gut microbiome can influence gene activity in the liver by acting on short stretches of regulatory DNA that function like molecular "switches".

15 Jun 2026