If you can, just buy plain yogurt which usually lacks the sweetener (and also tastes pretty bitter). You get used to it after a while, or just add some sweetener on your own. Personally I prefer Cottage Cheese, very high in protein with a lower amount of carbs and just a touch of fat. Also tastes kinda bitter plain, but you can add other stuff into it to make it taste better. My favorite is the sugar-free Davinci syrups. For breakfast I frequently have a bowl of cottage cheese with blueberries and pecans, and a bit of sugar-free Vanilla davinci syrup (sweetened with splenda). Very good!