Just check it out, don't ask, just look!!!

http://disgrasian.com/2010/03/we-like-grace-park-mad/




OMG

Seems she found the guy who stole her surfboard ....

Pictures like that make me concerned for her health. I know she's naturally thin, and that she eats, but she just looks so terribly lean.

I thought the same thing.

Yeah, well, the second photo proves that we shouldn't really worry for her. As someone being "thin" (maybe even "skinny"), I know that some movements/positions can give false impressions, especially on a photo, which is static. On the "mad" photo, Grace is contracting several ensembles of muscles, and that, imho, can give a "weird" aspect in an instantaneous shot.
Given her body shape, you see ribs, the clavicula, the sternum (nice manubrium ), but all that is perfectly normal. Her silhouette is evidently feminine.
No?

She's thin, but I don't think unhealthily so. Tricia Helfer is the same way. I think it's a model/actress thing...stay thin or don't work.

Or become a Sumo wrestler.

Ouch