I am sure that my following statement is not likely. However, I never asked or researched it so that I could successfully convince myself. Prior to surgery, I convinced myself that if I didn't follow the types and quantity of liquid/food my surgeon required that I would tear my small stomach. Again, I have never heard of this and it's probably a little extreme thinking, but it is the only way I have been able to make sure I follow the rules. I am head strong, I got fat by doing what I want regardless of consequences. I have now convinced myself that there are consequences that are just no longer worth the taste of breaking the rules. But hey, this is just my opinion. To each his own.
Try adding protein powder to the greek yogurt. It tastes decent, it is filling, and is packed with protein.