- Mar 20, 2013
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I agree that when you purchase meat from the people who raise the meat you will appreciate it more.
"Humans evolved as omnivores, but with not nearly the degree of carnivory found in the typical modern American diet."
I am not an anthropologist, but I have watched educational programs on TV.I learned that it was eating meat that allowed our ancestors to have the calories and protein needed to grow a larger brain. Neanderthals ate a diet that was something like 90% meat. Just recently DNA testing has shown that most people have about 3% Neanderthal DNA. Cro Magnons, basically modern humans, had a more varied diet that included more fruits and vegetables, but it was still largely a meat diet. It is interesting that Neanderthals did not eat fish but Cro Magnons did. A more varied diet makes a person more flexible and more likely to survive.
That being said, most modern humans aren't running around trying to kill their dinner. I mean most modern humans are not burning as many calories. I just saw an article that said that even housewives a few decades ago burned more calories than housewives today. Crank washing machine? Pre-prepared food?
People today can survive eating fruits, vegetables, and nuts. But I don't want to live that way. Give me a cheeseburger.![]()
The percentage of meat in the diet varied with the season, but current traditional hunter-gatherer societies derive about 60% of their calories from "gathering" as opposed to "hunting." And remember that meat is a higher-calorie food than most plant foods, so by volume, the meat component isn't huge. In a modern diet, you could get similar numbers from having a few strips of bacon with breakfast, and being vegan the rest of the day -- when I say "small amounts of meat" I meant per total food volume. Typical American meals today have a meat-centered plate with every meal -- that's way more than necessary, and very environmentally expensive to produce for everyone.
Yes, meat-eating was a component in our evolution which allowed for our brains to develop to the extent which they have -- and I actually wrote a paper for one of my physical anthropology classes on the topic of diet interacting with human evolution. The estimate you're quoting is based on interpreting nitrogen compounds remaining in the bones, and extrapolating that to determine diet. Previous estimates assumed a very high percentage of animal protein, but more recent and more finely-tuned examinations bring the number lower (around 40-60% of calories derived from animal sources, depending on the season in climates with Winter...I'd have to go back and re-read them to be more specific). Neanderthal, living much of the time in a Winter-heavy climate, had to rely much more on hunting than did our ancestors living where plants could be gathered year-round.
And yes, about 3% of the DNA found in people of European descent contains Neanderthal DNA. Then there's also the enigmatic Denisovans, who we've just learned have also contributed to the modern human gene pool. Human evolution is truly fascinating.
