Fun fact. Asian people suffer the health effects from high body mass (such as diabetes) sooner than people of other ethnic groups, and because of this their obesity BMI cutoff is actually lower. So, while you may not see Asians that look huge compared to what you're used to seeing, they do in fact have trouble with obesity.

https://en.wikipedia.org/wiki/Body_mass_index#International_...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2939400/