Gastrointestinal Health News and Research

Latest Gastrointestinal Health News and Research

Gut microbiome may shape response to GLP-1 drugs, new review suggests

This review examines how GLP-1 receptor agonists and the gut microbiome influence one another through bile acid signaling, short-chain fatty acids, and inflammatory pathways. It explores how microbial composition may shape treatment response and highlights the need for controlled human studies to enable microbiome-informed precision therapy.

19 Feb 2026

Gut bacteria patterns help predict insulin resistance in type 2 diabetes, study finds

Researchers used 16S rRNA sequencing and machine learning to identify gut microbiome patterns associated with insulin resistance severity in people with type 2 diabetes. XGBoost models showed that specific bacterial genera, including Bacteroides and Faecalibacterium, help distinguish individuals with higher insulin resistance from healthy controls.

19 Feb 2026

Cornell study finds existing drug could boost liver cancer immunotherapy

Immunotherapy – which activates the body's own immune system to kill cancer cells – has not worked well against a rare and fatal liver cancer, but a new Cornell University study finds an existing FDA-approved drug may allow the immunotherapy to fight the cancer as intended, opening the door to a potential treatment.

17 Feb 2026

AI tool can accurately predict colorectal cancer risk in UC-LGD patients

People with ulcerative colitis (UC), a chronic inflammatory bowel disease, are up to four times more likely to develop colorectal cancer than the general population.

17 Feb 2026

Study links microbe-rich diets with better insulin and cholesterol markers

This exploratory Australian study developed a database to estimate live microbe content in foods and examined associations with cardiometabolic health indicators in adults. Higher intake of foods estimated to contain live microbes was linked with favourable markers such as higher HDL cholesterol and lower BMI, insulin, and waist circumference, although causality cannot be inferred.

16 Feb 2026

Chronic inflammation shapes cancer progression and immunotherapy response

Chronic inflammation is both a driver and suppressor of cancer depending on context. Key players-NF-κB, IL-6, STAT3, TAMs, MDSCs, and Tregs-orchestrate a tumor-permissive microenvironment.

16 Feb 2026

Dysplasia grade predicts colorectal cancer risk in people with IBD

People with inflammatory bowel disease (IBD) and precancerous colorectal lesions are much more likely to develop colorectal cancer, a new study shows.

16 Feb 2026

Big breakfast study reveals protein curbs appetite but fiber delivers stronger gut microbiome benefits

A randomized crossover weight loss trial in adults with overweight or obesity found that higher protein big breakfasts improved satiety, while higher fibre breakfasts produced slightly greater weight loss and more favourable gut microbiota markers. Both diets improved metabolic biomarkers, but microbiota changes reflected surrogate gut health indicators rather than direct clinical outcomes.

15 Feb 2026

Engineered Listeria boosts innate immunity against cancer

After nearly 40 years of research on how Listeria bacteria manipulate our cells and battle our immune system to cause listeriosis, Daniel Portnoy and his colleagues have discovered a way to turn the bacteria into a potent booster of the immune system - and a potential weapon against cancer.

13 Feb 2026

Genetic variants in 11 regions of human genome influence the gut microbiome

In two new studies on 28,000 individuals, researchers are able to show that genetic variants in 11 regions of the human genome have a clear influence on which bacteria are in the gut and what they do there.

13 Feb 2026

Distinct microbial signature identified in pediatric Crohn's disease

NYU researchers have found a "microbial signature" of pediatric Crohn's disease that differs from the makeup of gut bacteria in children with other gastrointestinal conditions, with Crohn's patients harboring more pro-inflammatory bacteria and less protective bacteria.

12 Feb 2026

Top early-life factors driving childhood food allergy

This study analyzes 190 research papers to uncover early-life predictors of food allergies in children, highlighting skin barrier health and family history.

12 Feb 2026

High-fat diets cause more damage to metabolic health than carbohydrates

In recent years, many media reports and social media influencers have emphasized the dangers of eating too many carbohydrates.

10 Feb 2026

First wearable device measures human flatulence

Scientists at the University of Maryland have created Smart Underwear, the first wearable device designed to measure human flatulence.

10 Feb 2026

Microbial generalists form planet-wide networks across ecosystems

In a new study published in Cell, scientists in the Bork Group at EMBL Heidelberg reveal that microbes living in similar habitats are more alike than those simply inhabiting the same geographical region.

10 Feb 2026

New genetic model reveals role of keratin 8 in colorectal cancer development

Researchers at Åbo Akademi University have identified a new molecular change in patients with colorectal cancer and developed a genetic disease model that forms tumors in the large intestine, resembling those seen in patients.

10 Feb 2026

Obesity drives one in ten infectious disease deaths

Just over one in 10 deaths from a wide range of infectious diseases can be attributed to obesity worldwide, finds a major new study led by a University College London (UCL) researcher.

9 Feb 2026

Early life factors crucial for childhood food allergy development

A new study from McMaster University involving 2.8 million children around the world has revealed the most important early-life factors that influence whether a child becomes allergic to food.

9 Feb 2026

Time-restricted feeding reduces disease activity and inflammation in Crohn's patients

A new randomized controlled study funded by the Crohn's & Colitis Foundation found that time-restricted feeding-a form of intermittent fasting-significantly reduced symptomatic disease activity and systematic inflammation in adults with Crohn's disease and overweight or obesity.

9 Feb 2026

Study identifies link between gut bacteria and deterioration of the brain in ALS, dementia

A significant discovery by Case Western Reserve University researchers could change how doctors treat two of the most devastating neurodegenerative diseases.

9 Feb 2026