BMI Cutoffs for Asian Populations: Why the Thresholds Are Lower
October 21, 2026
The standard WHO ranges classify a BMI of 25 as overweight and 30 as obese. A WHO expert consultation found that many Asian populations have a higher percentage of body fat and a higher risk of type 2 diabetes and heart disease at a lower BMI. It proposed additional action points of 23 and 27.5, and several countries use their own lower cutoffs, such as 23 for overweight and 25 for obesity in some guidance.
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Studies show that, at the same BMI, people of South and East Asian ancestry tend to carry more body fat, particularly visceral fat around the organs, than people of European ancestry. That fat is strongly linked to insulin resistance.
As a result, diabetes risk begins to rise at a BMI in the low-to-mid 20s rather than at 25 or above.
Comparing the Cutoffs
Cutoffs differ between organizations and countries, so check the guidance relevant to you. The table shows the general WHO international classification and the lower WHO Asia-Pacific action points.
| Category | WHO international | Asia-Pacific guidance |
|---|---|---|
| Healthy range | 18.5 to 24.9 | 18.5 to 22.9 |
| Overweight / increased risk | 25 to 29.9 | 23 to 24.9 (increased risk) |
| Obese | 30 and above | 25 and above (some guidance) |
How to Use This Information
If you are of Asian descent, a BMI of 23 to 25 does not mean you are unhealthy, but it is a reasonable moment to check waist circumference, blood pressure, glucose, and lipids. Waist measurement is especially useful because it captures abdominal fat.
Like all BMI ranges, these are population-level guides and not individual diagnoses. Your doctor can interpret them alongside your own health profile.
Frequently Asked Questions
What is a healthy BMI for Asians?
WHO Asia-Pacific guidance considers 18.5 to 22.9 the healthy range, with increased risk from 23.
Why is the BMI cutoff lower for Asian people?
At the same BMI, many Asian populations have more body fat and higher risk of type 2 diabetes and heart disease.
Does this apply to everyone of Asian descent?
It applies at the population level. Individual risk depends on genetics, lifestyle, and other factors, so talk to a clinician.
Should I use waist size as well?
Yes. Waist circumference adds information on abdominal fat, which BMI does not capture.