Why BMI Categories are Different for Indians
Body Mass Index (BMI) is a universal health metric calculated by dividing a person's weight in kilograms by the square of their height in meters. While it is a useful aggregate indicator, it does not distinguish between muscle mass and fat.
The Asian/Indian BMI Paradox
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered "Normal." However, extensive medical research has shown that South Asians (including Indians) have a genetic predisposition to higher abdominal fat and lower muscle mass at the exact same BMI as Caucasians.
This phenomenon is known as the "Thin-Fat Phenotype." Because of this, Indians are at a significantly higher risk of developing Type-2 Diabetes and cardiovascular diseases at much lower BMI thresholds.
The Revised Cutoffs
To combat this hidden health risk, the Indian Ministry of Health and Family Welfare revised the BMI guidelines for Indians:
• Normal Weight: 18.0 - 22.9 (instead of 24.9)
• Overweight: 23.0 - 24.9 (instead of 25.0 - 29.9)
• Obese:> 25.0 (instead of > 30.0)