Add Yahoo as a preferred source to see more of our stories on Google. This photo provided by Tiny Health in October 2025 shows the company's swab for their gut health test. (Tiny Health via AP) ...

Spruiked by online influencers as a way of gaining insight into our health, experts say at-home tests oversimplify complex factors and can cause unnecessary distress ...

The human gut is home to trillions of beneficial microbes that play a crucial role in health. Disruptions in this delicate ...

Human studies consistently report gut microbiome differences in mild cognitive impairment and Alzheimer’s disease, but ...

A major new review of human studies finds consistent differences in gut bacterial communities between people with mild ...

At-home gut microbiome tests are trending, selling insights to the curious, empowerment to the chronically ill and a claimed path to longevity to the wellness-conscious. Private companies are offering ...