By all means, go into your grocery store, and look for the fat free versions of Greek yogurt to try. I liked this article over at seriouseats.com: Greek Yogurt Taste Test, and this article at Buzzle does a great job explaining Greek Yogurt Brands. I can't emphasize enough - look at the back of the label, and choose some to try using these criteria: zero to low fat, and low ingredient list. Some "high test" Greek yogurts can have up to 25 grams of fat per cup. That's like a McDonald's cheeseburger - gross. Also, these aren't diet yogurts - most will have anywhere from 120 to 200 calories a serving.
Though some CE folks don't like Chobani, I like it. It has fewer ingredients than other Greek yogurts, and is still 0 fat. The Oikos brand Greek yogurt is good, too. If you have never had Greek yogurt, I suggest you buy 3 or 4 different brands, and do a taste test. Be prepared - it's much creamier than the yogurt you've been eating, and more tart. When I first tried it, I mentally said "This is what yogurt is supposed to taste like - not fruit flavored Jello pudding!"
