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.

Irritable Bowel Syndrome (IBS) and Fibromyalgia

Sarin Classification of Gastric Varices

Irritable Bowel Syndrome (IBS) and Psychiatric Illness

The Microbiome and Aging

Irritable Bowel Syndrome (IBS) Psychological Therapies

Does the Microbiome Interact with the Human Endocrine System?

What is Irritable Bowel Syndrome?

Celiac Disease Pathogenesis

How to Recover Gut Health After Clostridium difficile Infection

Gastritis Treatments

Irritable Bowel Syndrome (IBS) Prognosis

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Risk Factors for Small Intestinal Bacterial Overgrowth

Alzheimer's Disease and the Microbiome

Oral Microbiota

Types of Gastrectomy

What is Gastrointestinal Bleeding?

Gut-on-a-Chip to Model Coeliac Disease

Probiotics and IBS

Irritable Bowel Syndrome (IBS) and Diet

Gastrointestinal Stromal Tumor (GIST) Causes

Gastric Bypass Benefits

Gastrointestinal Stromal Tumor (GIST) Treatment

Gastrointestinal Disease and Skin Problems

Treatment and Prognosis for Intestinal Malrotation

How Does the Diet Impact Microbiota?

Inflammatory Bowel Disease and Colorectal Cancer

Gastric Bypass Types

Symptoms of Irritable Bowel Syndrome

Treatment of Gastro-Esophageal Reflux Disease (GERD)

Causes of Bleeding in the Upper and Lower Gastrointestinal Tract

Gastrointestinal Stromal Tumor Pathogenesis

Celiac Disease Screening

Dysbiosis and the Microbiome

Dysbiosis and Aging

What is Gastritis?

Irritable Bowel Syndrome (IBS) and Exercise

Genetics of Inflammatory Bowel Disease (IBD)

What is Vaginal Microbiome?

Gastroparesis Symptoms

High FODMAP Foods and Low FODMAP Food Alternatives

Gastroparesis Epidemiology

Mesentery: a new organ?

Irritable Bowel Syndrome (IBS) and Infections

Parkinson's Disease and the Gut Microbiome

Is Dermatitis Herpetiformis Caused by Herpes?

Symptoms and Diagnosis of Intestinal Malrotation

Diagnosis of Gastro-Esophageal Reflux Disease (GERD)

Skin Microbiota

Symptoms of Gastro-Esophageal Reflux Disease (GERD)

Post-Infectious Irritable Bowel Syndrome

Effects of a Gluten-Free Diet on the Gut Microbiota

Causes of Irritable Bowel Syndrome

Irritable Bowel Syndrome (IBS) Food Triggers

Gastroschisis Causes

Does Wheat Cause Gut Inflammation?

Conjunctiva microbiota

Gastric Bypass Complications

Do Serotonin and Antidepressants Affect the Microbiome?

Fecal Microbiota Transplant Regulation

What does Sleeve Gastrectomy Involve?

Gastrointestinal Bleeding Symptoms

Human Microbiome

Irritable Bowel Syndrome (IBS) Research

Treatment of Irritable Bowel Syndrome

Gastric Bypass Criteria

Genetic Factors that Influence Bacterial Diversity in the Human Gut

Disease Susceptibility and the Microbiome

FODMAPs and Irritable Bowel Syndrome (IBS)

Antibiotics and the Microbiome

Drug Metabolism and Microbiome

Ulcerative Colitis Causes

What is Gastroenterology?

Celiac Disease Symptoms

Inflammatory Bowel Disease (IBD) in Pregnancy

Irritable Bowel Syndrome (IBS) and Stress Response

Celiac Disease Treatment

What is Gluten?

What is a Gastric Bypass?

Gastroparesis Diagnosis

Gastric Varices - Signs and Symptoms

Is There a Link Between Migraine and the Gut Microbiome?

Treatment of Gastric Varices

What is Gastroparesis?

Gastrointestinal Stromal Tumor (GIST) Signs and Symptoms

Fecal Microbiota Transplant

Short-Chain Fatty Acids (SCFAs)

Celiac Disease Diagnosis

Dermatitis Herpetiformis and Celiac Disease

Gut Microbiota

Crohn's Disease Cause

Functional Gastrointestinal Disorders: Integrating Physiological and Psychological Approaches

What is Gastroenteritis?

Gastroschisis Prognosis

Gastritis Causes

Irritable Bowel Syndrome (IBS) Differential Diagnosis

After Gastric Bypass Surgery

Gastrointestinal Bleeding Treatment

Gastrointestinal Stromal Tumor (GIST) Diagnosis

Mechanism of Irritable Bowel Syndrome (IBS)

What is Ulcerative Colitis?

Irritable Bowel Syndrome (IBS) Epidemiology

FODMAP Research

Fermented Foods and Gut Health

Microbiome and Disease

Gastroparesis Causes

What is Celiac Disease?

Diabetic Gastroparesis

ERCP (Endoscopic Retrograde Cholangiopancreatography) Overview

Gastritis Diagnosis

Gastritis Symptoms

Gastric Carcinoma

Microbiome and Cancer

Gastroparesis Treatments

Causes of Gastro-Esophageal Reflux Disease (GERD)

Low FODMAP Diet

Gastroparesis and Diet

Achievements of the Human Microbiome Project

Irritable Bowel Syndrome (IBS) Comorbidities

Malrotation of the Gastrointestinal Tract

Gastric Varices

Human Microbiome Project (HMP)

Fecal Microbiota Transplant Technique

Self-Help for Irritable Bowel Syndrome (IBS)

What is Gastroschisis?

Microbiome-Host Cell Interactions

Diagnosis of Irritable Bowel Syndrome

Latest Gastrointestinal Health News and Research

Gut microbiome characteristics predict treatment response in IBS-D patients

In a new study published in Clinical Gastroenterology and Hepatology, the low FODMAP diet and the antibiotic rifaximin provided similar and significant relief for patients with irritable bowel syndrome with diarrhea (IBS-D).

22 Apr 2026

Breast milk sugars promote beneficial bacterial balance in infant guts

Sugars contained exclusively in breast milk are helping to feed an important balance of bacteria in babies' developing gut microbiomes, a new study has found.

22 Apr 2026

Rising rotavirus cases highlight importance of childhood vaccination

With a rising number of rotavirus cases being reported across the country and in New Jersey this spring, experts from Hackensack Meridian Children's Health are urging parents to ensure their children are vaccinated against this common and potentially severe illness.

21 Apr 2026

Scientists develop MIND approach to predict and reshape microbiomes

University of California San Diego researchers have developed a new tool for understanding and modifying any microbiome, including the human microbiome.

21 Apr 2026

Gut microbiome clues may help spot Parkinson’s disease in its earliest phase

Researchers found that a Parkinson’s disease-related gut microbiome pattern appears not only in people with diagnosed Parkinson’s, but also in some non-manifesting GBA1 variant carriers and a subset of healthy individuals. The findings suggest that gut microbiome changes may help flag people who are closer to Parkinson’s disease development, although longitudinal studies are still needed to confirm predictive value.

21 Apr 2026

Oral bacteria can reveal your true biological age and health risks

A simple oral rinse may predict biological age, linking oral microbiome changes to aging, frailty, and chronic disease risk in a noninvasive manner.

21 Apr 2026

Coffee impacts the gut-brain axis to improve mood and stress

New research from APC Microbiome Ireland, a world leading research centre at University College Cork, has comprehensively explored the mechanisms behind coffee's positive effects on the gut-brain axis for the first time.

21 Apr 2026

Rising colorectal cancer rates in young Swiss adults spark concern

While the incidence of colorectal cancer is decreasing among those over 50, it is rising at an alarming rate among younger individuals, sometimes as early as their thirties.

21 Apr 2026

Microbial "signatures" within the oral cavity and gut may aid in gastric cancer detection

A recent study published in Cell Reports Medicine has identified distinct microbial "signatures" within the oral cavity and gut that serve as robust biomarkers for the early detection of gastric cancer (GC).

20 Apr 2026

Gut microbiome analysis may help detect Parkinson’s before symptoms appear

Analysis of microbes in the gut can reveal whether a person faces an elevated risk of Parkinson's disease, before they have developed any symptoms, suggests a new study led by University College London (UCL) researchers.

20 Apr 2026

Newborns carry antibiotic resistance genes within first hours of life

Antibiotic resistance genes (ARGs) – segments of DNA that help bacteria survive the effects of antibiotics – can be present in newborns within the first hours of life, according to research presented at ESCMID Global 2026.

20 Apr 2026

Eating oranges daily may shift lipid patterns in fatty liver disease

A 4-week trial on 'Navelina' oranges shows potential effects on lipid metabolism in fatty liver disease, revealing intriguing but non-significant patterns.

20 Apr 2026

Microbes in the digestive tract help tailor treatment for melanoma patients

The specific mix of bacteria living in a person's gut can predict the chances that melanoma will recur after surgery and immunotherapy, which helps immune cells target cancer cells. This is according to a new study led by researchers from NYU Langone Health and its Perlmutter Cancer Center.

20 Apr 2026

AGA update calls for better surveillance of hepatocellular carcinoma

A new update from the American Gastroenterological Association (AGA) urges stronger prevention efforts and better early-detection tools for hepatocellular carcinoma (HCC), the leading cause of cancer-related death in patients with cirrhosis, and the third most common cause of cancer-related death worldwide.

17 Apr 2026

Gut bacteria predict melanoma recurrence risk after treatment

The specific mix of bacteria living in a person's gut can predict the chances that melanoma will recur after surgery and immunotherapy, a treatment that helps immune cells target cancer cells. This is according to a new study led by researchers from NYU Langone Health and its Perlmutter Cancer Center.

17 Apr 2026

When rice-based formula is the right choice for cow’s milk allergy

This expert-driven framework aids clinicians in selecting hydrolyzed rice formula for infants with cow's milk allergy, enhancing dietary management strategies.

17 Apr 2026

Scientists link poor sleep to decreased chemotherapy response via the gut

Sleep deprivation has long been known to weaken the immune system. Now UF Health Cancer Institute researchers have made a startling discovery: The gut microbiota drives changes to the immune system caused by chronic sleep loss. These changes promote cancer progression, disrupt circadian rhythm and weaken the effectiveness of chemotherapy.

17 Apr 2026

Gut-liver changes drive foodborne infection severity in fatty liver disease

A research team led by the University of California, Irvine's Joe C. Wen School of Population & Public Health has uncovered a critical biological link explaining why individuals with metabolic dysfunction–associated steatotic liver disease (MASLD), or fatty liver disease, face significantly worse outcomes from certain foodborne infections.

15 Apr 2026

New biochip detects tiny genetic markers in 20 minutes

A team of scientists from Nanyang Technological University, Singapore (NTU Singapore) has developed a new biochip that, when paired with Artificial Intelligence (AI), can detect quickly and accurately extremely small amounts of microRNAs, which are tiny genetic markers linked to diseases such as heart disease.

15 Apr 2026

Study shows why an apple a day may work differently for different people

A 12-week single-blind trial in 38 Japanese adults found that daily Fuji apple intake did not significantly change overall host metabolic markers, but responses differed by baseline gut enterotype. Participants in the Bacteroidaceae-dominant enterotype showed significant increases in fecal short-chain fatty acids after apple consumption, suggesting that gut microbiota structure may shape functional dietary responses.

13 Apr 2026