I normally avoid all the fast food junk. Ewww now I feel so icky for eating that stuff!


As for good fats and bad fats... Try going to http://www.westonaprice.org/know_your_fats/skinny.html

And reading a bit about it. I would say that good fats are natural fats that come from animals, nuts, seeds, fruits and veggies.

Bad fats are mechanically produced fats like margarine.

Here is a quick post I made a while back on Hydrogenation.
http://forum.lowcarber.org/showthread.php?t=171962

There are plenty of other threads on the subject if you do some searches. If you have any more questions feel free to PM me.