Providers of microbiome tests are able to identify microorganisms by sequencing something called 16S RNA, which is found in microorganisms but not in humans, animals or plants. This allows them to discount your own DNA, and analyze the genetic material of the specific microbes inside your gut.
Instead, one of the best ways to detect a microbiome imbalance is to listen to your body: “If you’ve got symptoms, you’ve got a skewed microbiome—given,” says Dr. Rawls. “And the solution is the same whether you have a positive test or not, which is that you need to reverse the things that caused the imbalance to begin with.”
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