MedPage Today August 24, 2025
CGMs show limited evidence of benefit and may have negative consequences
I saw a patient a few years ago who had come to me because he had been using a continuous glucose monitor (CGM), despite not having diabetes, and was worried about what he called “glucose spikes” after he ate. He said he didn’t know what he should be eating. On questioning, he said the peak was around 8mmol/L. He had cut rice, pasta, and bread from his diet, but this just sent him on a spiral of worsening glycemic readings. He then cut out fruit, and still, his glucose did not improve. He ended up frustrated and confused.
This man’s experience was not atypical for patients I have seen...
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