CGM for nondiabetics: When it helps, when it misleads, and how men can use it well
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 17, 2025 · 12 min read
In nondiabetic men, a CGM is most useful when diabetes risk is elevated and you use it to track repeatable trends (it reads glucose in interstitial fluid every few minutes), but it can mislead when you treat one-off post-meal “spikes” as verdicts because readings lag behind blood glucose and responses can vary even to the ...