I have been recovered for a few years now. I am feeling good and am doing well, but I have made some lifestyle adjustments, mostly around avoiding impact sports/activities and doing my best to ensure I get ample rest and sleep.

For a while now I've been thinking about going vegetarian (possibly wih an exception for fish/fish oil).

Is this a wise/unwise choice? I don't want to do this if it could compromise my health (brain health especially). Can a body- and brain-healthy diet be constructed in the absence of animal meat?