If you've used a BMI calculator and landed in the "Normal" category, you might assume you're in the clear health-wise. But for people of South Asian descent — including Indians — research consistently shows that health risks appear at significantly lower BMI values than standard Western charts suggest.
This isn't a minor difference. It has real implications for how you interpret your BMI and when you should speak to a doctor.
The World Health Organization's globally published BMI categories are based primarily on data from European populations:
| BMI Range | WHO Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| 30.0 and above | Obese |
Multiple large-scale studies — including those referenced in the WHO Expert Consultation on BMI in Asian populations — found that South Asians tend to carry more body fat, especially visceral (abdominal) fat, at the same BMI as Europeans. Visceral fat surrounding internal organs is strongly linked to type 2 diabetes, cardiovascular disease, and metabolic syndrome.
The Indian Council of Medical Research (ICMR) and many Indian endocrinologists now recommend using Asia-Pacific or India-specific cutoffs for clinical decisions.
| BMI Range | Category for Indians | Risk Level |
|---|---|---|
| Below 18.5 | Underweight | Moderate–High |
| 18.5 – 22.9 | Normal weight | Low |
| 23.0 – 24.9 | Overweight (at risk) | Moderate |
| 25.0 – 29.9 | Obese Class I | High |
| 30.0 and above | Obese Class II | Very High |
Using this framework, a 5'7" Indian man weighing 78 kg would have a BMI of about 26.8 — "Overweight" by WHO standards — but by India-specific thresholds, this already falls in the Obese Class I range with significantly elevated cardiovascular risk.
Research also suggests that Indian women tend to carry more body fat at lower BMI values than Indian men. Waist circumference and waist-to-hip ratio often provide a better risk picture for Indian women than BMI alone. Indian health guidelines suggest waist circumference should generally remain below 80 cm for women and 90 cm for men.
A physically active person with high muscle mass may show an elevated BMI while actually being at low metabolic risk. For such individuals, body fat percentage measurement is more informative.
Two people with identical BMIs can have vastly different health profiles depending on whether fat is stored in the abdomen (high risk) or peripherally in the hips and thighs (lower risk).
BMI thresholds are less meaningful for people over 65, where lower BMI can sometimes indicate frailty rather than good health.
Use our free BMI calculator — supports both metric and imperial units, with instant results.
Open BMI Calculator →If your BMI falls between 23 and 25 and you are of Indian origin, consider it a prompt for a broader health check rather than a reason for alarm. Ask your doctor to also assess waist circumference, fasting blood glucose, lipid profile, and blood pressure. These together give a far more complete picture than BMI alone.
For those below 23, the goal is maintaining current weight while building muscle through resistance exercise and eating a balanced diet with adequate protein — both of which are protective against the metabolic risks Indians face.
Related reads: BMI vs Body Fat Percentage · Calorie Deficit for Weight Loss in India