Why Indians Develop Type 2 Earlier and at Lower Weight

If you are Indian, you can develop Type 2 diabetes younger and at a lower body weight than someone of European origin. This is well documented, and it changes what should count as normal for you.

Indians are diagnosed roughly 12 years earlier on average. One large study put the median age of diagnosis at about 47 to 50 years in Asian Indians, compared with about 62 years in white Europeans.

Weight thresholds are different too. India uses its own cut-offs rather than the international ones, because Indians run into diabetes and heart problems at a lower weight. A BMI of 23 to 24.9 already counts as overweight here, and 25 or above counts as obese — well below the global figures of 25 and 30. So a BMI your report calls normal is not automatically reassurance.

Part of the reason is body composition. At the same BMI, Indians tend to carry more fat and less muscle, and more of that fat sits around the abdomen and inside the liver. Researchers sometimes call this the "thin-fat" pattern. This is why your waist often tells you more than the weighing scale does — in India, abdominal obesity starts at 90 cm for men and 80 cm for women.

There is also a difference in insulin supply. Indians diagnosed young, especially those who are lean, tend to have weaker insulin-producing cell function rather than insulin resistance alone.

Across India this adds up to about 101 million adults living with diabetes and around 136 million with prediabetes, and the rates vary widely from state to state.