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Evidence Review
Continuous Glucose Monitor (CGM)
Verdict
UnprovenEvidence Tier
C
Weak evidence
Human Studies
Yes — for diabetics only
Typical Cost
$75-150/mo
CGMs are transformative for diabetics managing blood sugar. For healthy, non-diabetic individuals, the evidence that CGM monitoring improves health outcomes is essentially nonexistent. The glucose variability you see on a CGM in a healthy person is mostly normal physiology, not pathology. At $75-150/month, this is an expensive way to watch normal biology happen.
The full evidence review — including why the glucose spikes you're seeing are probably normal physiology, not problems to solve — is in Section 8 (Advanced Testing) of The Anti-Longevity Playbook.
Reviewed by Dr. Ramy Khalil, MD · Double Board-Certified Internal Medicine · Last updated March 2026
Are CGMs worth it for healthy people?
For diabetics, CGMs are transformative. For healthy non-diabetics, no evidence shows CGM monitoring improves outcomes. Most glucose variability in healthy people is normal physiology.
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