Something the Heller's suggest in the CALP book, which I like to do, is to thin your regular dressing with water.

Just add a little bit of water and mix well. I like this because then my dressing doesn't just sit on top of my salad in a big glob..... it runs down into my salad just a little bit better.

Like Mini says.......always, always read the labels. Salad dressings can fool you. Some of them have a really high carb count. And it is usually the low fat ones that do.

best wishes,
Libby