An overgrowth of gut microorganisms that produce methane could be a cause of severe constipation in many people, a new review finds.

These gut bugs belong to a class of microbe called archaea, and when they flourish too well in a person’s gut they cause a condition called intes...

It's a little known health condition that can become a nightmare: Regular and sudden episodes of intense nausea and vomiting.

Now, new clinical guidance urges people to take notes and speak...

The long-standing advice is that everyone should get more fiber in their diet, but a new study suggests some benefit more than others.

A person's gut microbiome appears to have some influence over the benefits a person derives from dietary fiber, researchers report in the journal Gut Microbes.

Evidence ...

New, real-world research confirms that the blockbuster weight-loss drugs that millions of Americans have been taking to shed pounds can trigger stomach paralysis in some patients.

"Although these drugs do work and should be used for the right reason, we just want to caution everyone that if you do decide to start this, be prepared that you have a 30 percent chance that you may have GI sid...

Even a slight rise in a specific type of beneficial gut bacteria can help people ward off serious infections, a new study reports.

For every 10% increase in butyrate-producing bacteria in a patient's gut, their risk of hospitalization for infection drops between 14% and 25%, researchers are scheduled to report at a major European medical meeting next month.

Butyrate is a fatty acid ...

It was the ancient Greeks who first divided the 20-foot length of the small intestine into three parts: The duodenum, the jejunum and the ileum.

However, the organ may finally be ready for an update: U.S. researchers say the small intestine is actually comprised of five distinct segments, each being responsible for the absorption of various nutrients.

"We're excited because this gro...

You're feeling bloated, nauseous and in pain. What is wrong?

It may be gastritis, an inflammation of the stomach lining that can come on suddenly or gradually. It can also lead to other problems, according to the Cleveland Clinic. Here, experts explore gastritis, its caus...

Kids get a lot of tummy aches.

How a parent responds to it can vary, just as the causes can, according to the University of Michigan Health's C.S. Mott Children's Hospital National Poll on Children's Health, which looked more closely at the issue.

About 1 in 6 parents said their child has tummy pain at least monthly, according to the poll, but many don't call the doctor. One-third...

Crohn's disease can turn your life into a gastrointestinal nightmare, but there is hope.

According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), more than half a million Americans have Crohn's diseas...

Celiac disease is a chronic disease that can't be cured, but treatment can help with symptoms.

This guide will break down what you need to know about celiac disease, including its causes and symptoms, along with self-care and treatment. You'll also learn more about the celiac disease diet, especially foods to eat and those to avoid.

What is celiac disease?

Cel...

Indigestion, or dyspepsia, is a common ailment that can bring about a range of uncomfortable symptoms, leaving one feeling full and experiencing stomach pain.

It's a condition that affects many individuals and can significantly impact their quality of life. In this article, experts delve into the intricacies of indigestion, exploring its causes, symptoms and treatment options.

Addit...

People who suffer from irritable bowel syndrome (IBS) know it is a highly unpleasant chronic condition that can trigger abdominal pain, diarrhea and constipation.

Here, experts will unravel the mysteries of IBS, exploring its causes, symptoms and treatments. And of course, don't forget about the role of diet. Experts will break down the best foods to eat and those to avoid for a happy gut...

Half of the cells in your body aren't human -- and a new study suggests that many critical to your health oscillate by the hour, day and even the season.

The human body contains about 40 trillion bacteria, viruses and fungi, creating a microbiome that roughly matches the number of human cells one-to-one, said researcher

People are often reminded that they are their own unique person -- and a new study says that's particularly true of the digestive tract.

Dissections of a few dozen deceased individuals revealed striking differences in gastrointestinal anatomy, even among a small group of people.

Some livers were larger, some intestines and colons were longer. Crucial discrepancies were observed betw...

If you've ever thought you must absorb more calories from food than other people do, you might be onto something: A new study hints that some people's gut bacteria extract more energy, as in calories, from food -- possibly contributing to weight gain.

The study, of 85 overweight adults, found that those with a particular gut bacteria profile -- dubbed the "B-type" -- had less energy densi...

A small toilet-based sound sensor that can tell the difference between peeing, pooping and diarrhea may one day help prevent cholera outbreaks.

"The hope is that this sensor, which is small in footprint and noninvasive in approach, could be deployed to areas where cholera outbreaks are a persistent risk," said researcher

Banking samples of your own poop in your youth and then transplanting them back when you're old might be a key to healthy aging, scientists suggest.

Stool samples frozen and stored when a person is vital and healthy could potentially rejuvenate bacteria in the gut that's become damaged due to aging, disease or antibiotic use, according to an opinion piece published June 30 in the journal ...

A diagnosis of pancreatic cancer may feel like a death sentence because this fast-moving disease is often discovered at a later stage, when it's harder to treat.

Now, a new study offers hope for earlier diagnosis, finding an association between recent