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 ...

Identical stool samples sent to seven direct-to-consumer microbiome testing companies produced substantially different bacterial profiles and health assessments. Across 18 commonly reported microbial ...

At-home gut health tests use DNA or RNA sequencing from a stool sample. Testing your gut health cannot replace an official diagnosis from a doctor. Your results may provide insights into gut ...

The results were even more disparate than the team had expected. Of the more than 1,200 taxonomic groups of microbes identified by all the tests combined, just three microbial genera were present in ...