Dozens of at-home testing companies claim that they can analyze the bacteria, fungi and other microbes in your stool to create a snapshot of your gut microbiome — the community of trillions of ...

The results were even more disparate than the team had expected. Of the more than 1,200 families of microbes identified by all the tests combined, just three microbe families were present in all seven ...

Seven firms reported inconsistent results on the same sample, some over multiple tests. These gut microbe discrepancies could ...