Gut health refers to the condition of the gastrointestinal tract and the diversity, composition, and function of the gut microbiome.

Plant-based diets are associated with gut microbiome diversity and a lower risk of colorectal cancer. Short-term dietary changes can also shift the microbiome composition, and elimination diets help to ease symptoms of certain digestive disorders.

Strong evidence suggests that probiotics can alleviate digestive symptoms from antibiotics, foodborne illnesses, irritable bowel syndrome (IBS), and inflammatory bowel disease. Peppermint oil can also reduce abdominal pain in IBS.