Research

Hormonal

Standard diagnostic tests (fasting glucose, HbA1c, OGTT) fail to identify glucose dysregulation in a significant subset of individuals classified as normoglycemic, who exhibit severe postprandial glucose variability and spikes into prediabetic/diabetic ranges when monitored via continuous glucose monitoring (CGM).

Standard blood tests (A1C, fasting glucose) can miss hidden glucose spikes. If you are 'normal' on labs but have risk factors, consider Continuous Glucose Monitoring (CGM) or standardized meal challenges to see how your body actually responds to food. This can reveal 'severe glucotypes' that indicate higher risk for diabetes and heart disease despite normal static labs.

GoodRefutesHIGH confidence
We found that even individuals considered normoglycemic by standard measures exhibit high glucose variability using CGM, with glucose levels reaching prediabetic and diabetic ranges 15% and 2% of the time, respectively.
Heather Hall et al. · PLoS Biology · 2018

Why this rating

Observational study with CGM and standardized meals; strong internal validity for the cohort, but generalizability depends on cohort representativeness.

Source

Glucotypes reveal new patterns of glucose dysregulation

Heather Hall et al. · PLoS Biology · 2018

DOI 10.1371/journal.pbio.2005143

cohort · n=57Cited 307×
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DOI resolved against Crossref · corpus check 2026-06-10

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