Melissa...
I count it as a fat because the one I use it Paul Newman's Olive oil and vinegar - I love this salad dressing - so much so that I smuggle it into restaurants when I go - but it is high in fat.
Any who - the idea is to put the dressing in a small bowl or plate (bowl or cup is better if you are at home - sometimes when you are out you have to settle for the bread plate - which is not a problem because we don't eat that crappy processed enriched wheat bread, right?

) Then before putting any lettuce on your fork you dip the fork in the dressing then go for the lettuce - you get a little taste of the dressing - honestly it is enough - and you spare yourself the calories and the overwhelming flavor when you get to the bottom and your lettuce is drowning...