Well+BeingThese pricey gut tests may tell you nothingMarch 14, 2026 | 1:53 AM GMTHave you heard of at-home gut microbiome tests? These poop-analyzing tests promise to tell you if the teeming masses of microorganisms in your intestines are “healthy” or not. There’s a problem though. In a new study in the journal Communications Biology, researchers found that these can be unreliable, as in, they sent identical stool samples to seven different companies and got very different results. If you’re looking for something that can improve the health and diversity of your microbiome, here are four things to consider.

Source: Washington Post March 14, 2026 01:56 UTC