Should we completely cut out meat? Or not

So my boyfriend and I were talking about a dr, his name is dr Sebi. I’m not exactly sure who he is but my boyfriend described him as (a natural dr with a cure for cancer) and after watching a couple videos we started to argue over whether meat is good or bad for you. The few points I remember include not eating meat because we are not meant to eat it and that meat can cause you to think differently and have altered emotions (anxiety or low self esteem and anger) based on how the animal felt before being killed. I personally don’t agree but I want to hear others points on it