Glucose Explained
What Is Fasting Blood Glucose?
Fasting glucose is measured after a period without caloric intake and provides a different snapshot from post-meal glucose.
Health note: This page is educational and does not diagnose, treat, cure or prevent disease. Supplements can interact with medicines and may not be appropriate for everyone. If you use glucose-lowering medication, are pregnant or breastfeeding, or have a medical condition, discuss supplements with a qualified health professional.
What “fasting” means
Fasting measurements are designed to reduce the immediate effect of a recent meal. Clinical testing protocols define the fasting period.
Why trends matter
Home readings can vary. Medical interpretation should consider laboratory methods, repeat testing and the broader clinical picture.