So I have been vegan for about 9 months. I fasted yesterday and today I decided since I was empty I wanted to test the effects of meat and see how my body would respond to it. I grabbed a hamburger out of the freezer that my mom keeps and I cooked it up on a little george foreman grill...
The first thing I noticed is that it had to be cooked, there is no way I could of ate that without it being cooked. This defies logic on the reason that if we were meant to eat meat we could do so naturally. The paleolithic theory is based on the idea that our appendix use to be used for digesting raw twigs, and grasses, so the hypothesis is that we are naturally vegetarians.
The taste; edible. I have eaten meat growing up and it's dense. Very fatty. The fat would puss out of the meat. Meat has bad cholesterol, LDL. You want high levels of HDL only found in vegetable products.
I didn't need to eat that to be healthy. I also think that excessive meat intake could be EXTREMELY bad for you. If I eat meat I think fish is my first choice. It would be an evolutionary advantage to be able to eat meat if we were starving. I personally think bugs would probably be a large portion of our diet. Considering most primates eat bugs and what not. I hear it tastes like shellfish.
So, my ultimate conclusion; meat is not necessary.