Glucose regulation
Fasting glucose · A1C · oral glucose toleranceEstablished tests identify prediabetes and diabetes. Each captures a different time window and can disagree.
Read prediabetes article →Read normal glucose article →
EN|PTScientific foundation
The overview uses disease-specific guidance. Individual articles carry claim-level citations, limitations, and review dates.
American Diabetes Association · 2026
American Diabetes Association · 2026
Sociedade Brasileira de Diabetes · 2026
U.S. Preventive Services Task Force · 2021
AACE · 2026
Editorial record