While nonfat Greek yogurt has just 130 calories per cup, no fat, 9 g carbohydrates, 9 g sugar and 23 g protein, 1 cup of the full-fat type has 300 calories, 23 g fat, 7 g carbohydrates, 7 g sugar and only 15 g protein. A cup of sour cream is still far richer, however, with 445 calories and 45 g of fat but just 5 g protein, 6.5 g carbohydrates and 8 g sugar. Reduced-fat sour cream has a slightly more positive nutritional profile, with 325 calories, 7 g protein, 29 g fat, 10 g carbohydrates and 0.5 g sugar per cup; and a cup of fat-free sour cream has 175 calories, 7 g protein, no fat, 36 g carbohydrates and 1 g sugar. While full-fat sour cream has 120 mg cholesterol per cup, Greek yogurt has none
Read more: http://www.livestrong.com/article/52663 ... z1sgSykQaN
My main concerns are cholesterol that's why I originally switched when I was doing lf, but you can adjust the recipe how you like. I don't think ff sour cream is horrible. The difference seems small. In fact Mountain High makes just plain ff yogurt in really big containers so it's cheap and I use it ALL the time.It I want a "loose" cream I use it as is. If I want a Greek yogurt consistency, I strain it through a cheese cloth like say for tzatziki sauce.
Bethy- Go get some!