DIET & NUTRITION
I just want o remind you that there is a wealth of information in the Diet & Nutrition Forum on this site. You can look at the column in blue on the left side to pick various topics of interest including all the info you need to know about pre-op and post-op RNY WLS. There's a huge section you can access in the lower right section to review various foods by type.
I looked up my favorite protein shakes which are Matrix and Nectar. They are all made by Syntrax. When I clicked on the Syntrax link, I got reviews of most of the Matrix and Nectar flavors. Just about every other powdered or liquid protein shake is also listed there.
I suggest you look at some of the other forums offered on ObesityHelp.com . There's a lot to learn here. Unlike our Forum, some of these have reliable information which is easily accessible. The Men's Forum has accurate info, but it's easy to lose track of it unless you save it to files on your PC as it appears.