I want to become a pescovegetarian Again

I. like you, only eat fish....no chicken, beef, pork. I never knew what this was called. I also thought that the protein was a good protein. I'm not sure what you mean with "prepereations". Do you mean preparing the fish? Your question is interesting! As far as where the fish comes from...in supermarkets...Big Y for one; they list where the fish is from and whether it is wild or farm raised. I'm sure if you asked at the fish section they would tell you; but who knows if they're telling you the truth!