Lactose intolerance is an inability to digest a type of sugar found in milk and dairy products. Breath, blood, and stool tests are types of lactose intolerance tests that can measure the body’s ...

Microbiome tests measure the microorganisms in a person’s gastrointestinal (GI) tract. These tests can give the person an idea of the types and amounts of microorganisms in their gut. However, people ...

Colorectal cancer is one of the leading causes of cancer deaths worldwide. Until now, colonoscopy has been the most reliable test, but many people avoid it because it is invasive, expensive, and ...