I am four weeks Post Op - almost immediately I just could not stomach the Protein Shakes. I hate artificial sweeteners now. I have moved on to the GENEPRO Protein Powder. You can get a two serving sample from Amazon to try. I know Amazon and GNC sell it. Its tasteless and dissolves so you have no idea it in whatever you choose to add it to. I add it to Crystal Light Lemonade. I know there are some that add it to Soups and potatoes, and all sorts of things.