The process of bacteria breaking down undigested food and releasing alcohols, acids, and gases.

A substance in foods that comes from plants. Fiber helps keep stool soft so that it moves smoothly through the colon. Soluble fiber dissolves in water and is found in beans, fruit, and oat products.… 

An abnormal passage between two organs, or between an organ and the outside of the body, caused when damaged tissues come into contact and join together while healing.

Excessive gas in the stomach or intestine that can cause bloating and flatus.

Gas passed through the rectum.

An acute gastrointestinal infection caused by food that contains harmful bacteria or toxins. Symptoms include diarrhea, abdominal pain, fever, and chills.

Liver failure that occurs suddenly in a previously healthy person. The most common causes of FHF are acute hepatitis, acetaminophen overdose, and liver damage from prescription drugs.

Disorders such as irritable bowel syndrome that are of unknown cause. Symptoms such as gas, pain, constipation, and diarrhea come back repeatedly but without signs of disease or damage. Emotional stress can trigger symptoms. Also… 

A mold or yeast such as Candida that may cause infection.

A type of sugar in milk products and sugar beets. The body also makes galactose.