There is more energy per gram of meat than vegetables. There are more vitamins in veggies than meats. Iron and protein are more plentiful in meat. The higher capacity for meat to deliver more nutrition per unit weight makes it the fastest way to get that. It doesn’t necessarily make it better, just faster.
Cooking advances the process so the human digestive tract can work more efficiently. It all boils 
down to how much effort and energy you want to spend on hunter gathering. It’s not about which is better per se, it’s about time allocation. Less time spent surviving means more time to spend on innovations.
Duane
Iron is more plentiful in many veggies than meats, most notable famous example, Popeye's spinach, but there are many more. Good fresh veggies, which are live and living have been given a bad rap by the meat industry propaganda. There is a ton of protein in veggies, too. Often more than meats. When you consider the overcooking to get rid of the factory farm defects and dangers, the nutritional benefits cooked are nothing like the raw product. Veggie nutrition also disappears 40% and 60% and more cooked. A couple of days after picking and there is dramatic reduction, too. Simply grinding, squeezing, and blending, will reduce the intake time of mastication. Meat doesn't digest as well. There isn't as much fiber.
There is also an obvious difference when eating fresh and raw. Much less is consumed before satisfaction. The food is enjoyed more and chewed more mindfully. There is a tendency to eat cooked foods by more of a shoveling style in various amounts. The heat makes one eat it before it gets colder, so one eats faster and greater quantities. The reason for the lesser intake is because the body knows that it is getting its nutritional needs, it isn't searching for more by eating more to get satisfied.
Meat taste fun, it lays me out satisfied in big quantities, but it isn't necessary and overuse generally isn't so good, without lots of exercise and plenty of veggie fiber.
We aren't hunter gatherers anymore. We have had a balanced domestic animal and farming success, which is being destroyed
by a very greedy unscrupulous group of corporate pirates. We have the resources to feed a much greater population than the Earth has now using local smaller farm methods. Creating domestic meat is many times less efficient to the point of doing massive environmental harm and harm to other humans. These new factory farm methods also have ethical questions, like gruesome lifetime of torture, which isn't necessary and instead gives superior products. Meat, is just an overused bad habit making trouble in epic proportions.
The meat industry has placed this idea of a body needing massive protein on us. People actually don't need a diet that is mostly protein. Some people need more than others according to Aruvedic medicine, but nothing like we have been told. China Study showed the overwhelming evidence of that. Even so, there is more protein to be had in veggies, not even considering plant sources like beans and nuts.
Hmm, I suppose I disagree with you Duane....
Less meat eating, more fantastic places to hike naked.
Jbee
