i wanted to go vegetarian after i spent 1 month in nepal eating veg food only, but then on my way home from the airport i went through my local farmers market and the first thing i bought were two blood sausages and a deer steak.
problem with meat from my point of view is it takes much more land to grow than veg food - especially beef. 1 cow can feed like dozen times more people if you'd rather grow veg food on its pastures. also meat is pretty hard to digest, if you have it often it really isn't good for your digestion and causes tons of additional health problems. the last and maybe biggest problem is that stuff like pikeperch or propper steak just taste so well i couldn't go without it.
but i eat like at least 2x less meat than i used to and i buy good one ....... and i feel better