Nutritional Estimates per serving (1/2 cup): 108 calories, 0 g fat, 26 g carbs, 2 g fiber, 2 g protein and *3 Weight Watchers Points Plus
I prefer sugar but you can use whatever sweetener you like best. Agave or honey should work well.
You can make a variety of nonfat frozen yogurts with this recipe. Substitute the strawberries with your chosen fruit. Blueberries, mixed berries, cherries and peaches would all be good.