Are all fats created equal?

[Jungledoc]

I just read part of Lyle McDonald's long, wordy series on training the obese beginner. (I know, saying "Lyle McDonald" and "long and wordy" in the same sentence is redundant). He makes this point (over and over and over) both in terms of diet and exercise. He says that it's important for the new client to leave their first session feeling better, not worse than when they started.