almost impossible to do it if you live in America, the food and water system is flooded with steroids and genetically modified goods and chemicals. this is why Asian grisl in America are all so bloated and ugly.
your best bet is to go live in Korea for a while, duoplicate their lifesyle and diet, then come back to AMerica and ONLY SHOP IN ASIAN GROCERIES.
DO NOT EAT AMERICAN FOOD, IT IS POISON.
wow, what an informative post and waste of soompi space

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to the OP, sorry to burst your bubble, but the average person in asia does NOT look like the stars you see on tv.
that doesn't mean that there are not a lot of good-looking people, there are, but stars have trainers and people there to make them look good.
if you look, you can see that many of those stars aren't perfect either.
under the make-up you can see little holes from acne scarring, bodies aren't toned but more skinny because they don't eat.
another thing is that many asian body types carry fat in different ways.
my thighs are bigger than some of the girls here, but it's not cuz i'm stuffing my face, but cuz that's how my body was made.
eating 3xs a day, getting some kind of exercise (walking, biking, etc), not smoking, etc are all ways to be healthy and thin.