Get the scoop on Greek yogurt: How healthy? Which one is best?

Let's talk yogurt. Yep, thoselittle cups of vitamins and minerals that many nutritionists say are essentialfor a healthy diet. But how healthy are they? And which ones are best for you?

When it comes to yogurt,variety is key. Low-fat, high calcium, Greek, plain, flavored, even sprinkledyogurts are full of good things, like protein, and nutrients.

"They keep us full for alonger period of time. They're good for maintaining and building muscle massover a course of a life span, and many of them are rich in calcium and vitaminD," said Marie Spano, registered dietitian. "But again, you have to look atthat product label, and they contain that live and healthy bacteria that's goodfor our digestive tract."

But sometimes it's tough todecide which one to choose. Nutrition experts say it all depends what you arelooking for.

Greek yogurt seems to be thehottest item in the dairy section these days. Packed, sometimes with twice asmuch protein than regular yogurt, many people say they like it for itsconsistency and taste.

Greek yogurt differs becausethe whey, or liquid top in regular yogurt, is filtered through, which makes Greekyogurt creamier and gives it a tangier flavor.

"Some companies actuallyadd whey back, and that's a very valuable protein."

If you're trying to load upon calcium, or watching your fats, salt and sugars, dietitians say it's best toread the labels, because different brands have different nutritional content.