I am one week post op and I am already down 16 pounds. I couldn't believe it when I stode on the scale today. I did tell the doctor, I am having a hard time with my protein. After a week of being on it, it gets harder and harder to stomach. To me that taste is absolutely disgusting. He did tell me I could add reduced fat peanut butter and bananas to spice them up. I must say, adding peanut butter to one was much better this afternoon.