I get drunk easily, is that because I am Asian? (more inside)

I have heard people say that Asian people don’t need to drink as much alcohol in order to be drunk or feel the effect of alcohol. Can this be confirmed? I am of Thai origin, living in Sweden, I can start spluttering after a pint and feel all tipsy. But I am also a big guy, weighing in at 330lbs (yeah, I am having a gastric bypass in five weeks, wohooo!) but still all that alcohol is sucked up like if my body was made of nothing but sponges.

Whatcha think? Do Asians have warmer blood or something?