BMI

Fasting, post-meal, random, and HbA1c blood sugar tests each measure something different. Here is the complete normal-vs-prediabetic-vs-diabetic chart for all four.

A BMI of 25 is "overweight" for a Western adult, but research shows South Asians carry significantly more body fat at the same BMI — and face higher metabolic risk. The WHO recognises lower BMI thresholds for Asians. Here is what the research says and why it matters.

The BMI scale classifies weight from underweight to obese — but what counts as healthy varies by age and sex. This guide explains the WHO chart, what your number actually means, and the well-documented limitations of BMI as a health measure.