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London Blood Tests is highlighting its GutID CGI TriCare Pack, a three-test microbiome assessment package designed to examine changes in gut microbial composition at different points in time. The service allows individuals to compare separate samples rather than relying on a single microbiome snapshot

Advertisement Updated: 10:43 PM PDT Oct 7, 2026Editorial Standards ⓘ Edie Lambert Anchor/Reporter Updated: 10:43 PM PDT Oct 7, 2026Editorial Standards ⓘ Edie Lambert Anchor/Reporter

Dear Doctors: I read your column about improving gut health and want to do it. But I have also read that it’s best to start with a test to get your gut microbiome analyzed. How do those tests work? Do I really need one? I’m on a fixed income and they’re not within my budget

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

Home Gut Microbiome Tests Give Varying Results June 24, 2026 By:Stephanie Servetas Stephanie Servetas is a microbiologist at NIST who studies the gut microbiome. Credit: Megan King/NIST