Heart, metabolism%

HbA1c

Optimal

< 5.4%; 5.7–6.4% prediabetes

Why

Average blood glucose over 2–3 months; even the prediabetic range raises dementia and heart-disease risk.

Yearly; every 6 months in prediabetes.

Weight loss, strength training (muscle is the main glucose sink), fibre, post-meal walks, sleep.

Last reviewed: 6 September 2026

This site is educational and does not replace medical advice. Start any supplement or drug only after consulting a doctor or pharmacist.