Korean food is very salty, so not that healthy either.
The reason I asked about that muscles thing is because there are several idols who had bigger legs and then slimmed down a lot, e.g. Sulli or Suzy look as if they even lost muscles, especially on their calves.
And "being asian" doesn't magically give you perfect hair or skin, that's a dumb myth, anon. I'm not interested in how they looks so white either (already "achieved" that lol) but rather in why they don't look as pimply or haggard as other women who are underweight. They look good in unfiltered, unphotoshopped pics too.