Partially-Hydrogenated foods and EFA's

I have a question regarding hydrogenated oils and how it effects intake of essential fatty acids.

I read somewhere that basically, if you consume anything containing partially hydrogenated oils it makes taking essential fatty acids virtually pointless. So, if I eat a nutragrain bar and an apple for breakfast and I take my EFA pill (flax, sunflower, primrose, etc) that bar will totally defeat the purpose of taking an EFA because it has some partially hydrogenated oil in it?

I don't know too much about hydrogenated oils (except for the fact that they aren't too good for you and they're in virtually everything) but I was wondering if anyone could shed a little light on this subject for me... I'm TRYING to eat a little healthier :)

-Chris Tweet