i don't support eating meat, for health reasons, and for cruelty reasons. i do still eat meat a few times a week because:
1. i was raised eating meat, so i'm more or less desensitized.
2. i don't want to be one of those people that gets sick when they eat something cooked in a pan after some meat was cooked in it.
3. it is difficult (not impossible though) to get all the nutrition you get from meat. let's face it, evolution says we are all meat eaters because that's what our ancestors ate. so i don't think anyone here has the digestive system to handle eating strictly vegetables, etc.
think about this though -- all the things you can't eat when you get old, are the things that are actually not good for you your entire life: red meat, dairy, sugar, salt. it's just that when you get old, your body can't take it any more, having been abused all those years.
final point: if we can eat animals because they are "stupid" or less evolved, then you should agree with a superior race, or possibly just highly intelligent humans, slaughtering and eating us in the same way.