I would like to correct the last paragraph of my previous post:
It is not so simple. Rabbi Avigdor Miller was once asked if it is permitted to be a vegetarian. He answered that if you are doing it for health/medical reasons, then okay. If you don’t like meat, then enjoy your vegetables. But if you are doing it because you think that it is wrong, then ” you should know that your an apikoros and hate the Torah.”
I heard this from my father, who heard it directly from Rabbi Miller.