It's the type, definitely! For example, Butter is better than Margarine (except for the Olive Oil type, or transfat free margarines, you know the heart smart stuff), because it's a natural fat that most people can assimilate easily.The exception, of course, is if you're lactose intolerant......
Omega 3 fats = good
Natural fats in food, in correct balance = good.
Transfats =
TERRIBLE! Margarine was invented to make Turkeys fatter for slaughter, believe it or not, and it caused a higher % of early mortality in Turkeys from Coronary Artery Disease. (I'm not kidding here!
) Traditional margarine is nearly a plastic compound.