Obesity-related diseases, primarily type 2 diabetes in India and South Korea pose grim picture in 2016, 4.8 million 30 y or older South Koreans (prevalence 13.7%) had diabetes, and about a quarter of population had prediabetes 5. Moreover, the study provides confidence to further research a very important health issue in South East Asian population. 1 is important as it validates the use of BMI to study at least the Asian Indian and South Korean populations. These thresholds are lower than the current BMI cut-offs applicable to Caucasian populations. 1 calculated BMI thresholds for South Korean males and females, respectively, as 22 and 18 kg/m 2 for overweight and 26 and 23 kg/m 2 for obesity. Finally, using available percent body fat cut-offs and cardiometabolic risk factors, Hood et al. But also, there was a segment of Asian Indian population that was smaller in weight as well as height compared to South Korean population. Next, they used the Korean National Health and Nutrition Examination Survey (KNHANES) data and observed an overlap between South Korean and Asian Indian population for weight and height. Hence, it would be appropriate to use current formula for calculation of BMI in Asian Indian population. 1 concluded that BMI, as defined, does normalise weight for height in Asian Indians. Even the tribal population, known for its smaller body size and stature compared to general population, showed similar scaling. 1 used a dataset of 43,880 adult Asian Indian males of age 15–54 y, including 5549 members of various tribes to conclude that weight does scale close to 2 (squared) in this geographically, socio-economically, culturally and ethnically diverse population. between Asian Indians and South Koreans)? and (3) Do BMI thresholds for overweight and obesity for South Koreans differ from those for Caucasians?” In this issue of the journal, a team of researchers 1 including obesity researchers, mathematicians and anthropologist asked following three questions: “(1) Does weight scale to height squared in Asian Indians? (2) Does the weight-height relationship differ within different Asian populations (i.e. This assumption, as well as the thresholds for defining overweight (BMI between 25 to <30 kg/m 2) or obesity (BMI ≥ 30 kg/m 2) have been derived from studying Caucasian population, hence may or may not apply to various other groups globally.

Hence, to adjust for the proportion between height and weight, the use of BMI assumes that in a given population, weight scales to height squared. It is obvious that weight and height are linked. Body mass index (BMI, ratio of height and weight, expressed as kg/m 2) is widely used to define overweight and obesity across many countries, populations, races and ethnicities.

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