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In Search of the Perfect Human Diet
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<blockquote data-quote="croaker24" data-source="post: 22459" data-attributes="member: 900"><p>I was pretty sure you were doing this specifically to get a reaction <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Did not want to disappoint you. If you want to read a good book about human evolution and a perspective on Paleo - try:</p><p></p><p>"The Story of the Human Body" by Daniel Lieberman - head of the dept of human evolutionary biology. A little long, very detailed, and maybe dry at times - but fascinating stuff.</p><p></p><p>Some random quotes --</p><p></p><p><em>Another problem with the paleo diet is that it makes unscientific assumptions about what our ancestors ate, Lieberman says. “There was no one single paleo diet; there were many,” he says. Our Stone Age relatives lived in a diverse range of habitats, from tropical regions of Africa to rain forests, boreal forests and tundra regions, he says, and their diets varied according to what was available in these habitats. “There is no one time and place and habitat to which we're adapted,” Lieberman says.</em></p><p><em></em></p><p><em>But other pieces of paleo diet advice contradict what we know about human evolution, he says. For instance, paleo diets forbid dairy products, but numerous people around the globe have inherited a genetic mutation that enables them to metabolize milk as adults. This trait evolved independently at least seven times, Lieberman says, so it's simply wrong to say that humans haven't evolved to eat dairy foods.</em></p><p><em></em></p><p><em>Nor is it correct to assert that our paleolithic ancestors' diets were devoid of grain. “We know that hunter-gatherers in the Middle East were eating grains,” Lieberman says, because archaeologists have found remains of wild barley they were gathering, along with the mortars and pestles they used to grind this grain into flour. Not every population ate grains, Lieberman says, but those who had them available certainly did. “Whether they were healthy was beside the point,” he says.</em></p><p><em></em></p><p><em></em><em>Why should we eat like our ancestors did during the Paleolithic period, which ended about 12,000 years ago? Because our genes have changed very little in the 300 or so generations since then, said Cordain, and they're adapted to a world where food was hunted, fished or gathered from the natural environment. Our bodies didn't evolve to run on the refined foods found on grocery shelves today, he says.</em></p><p></p><p><em>But nor did we evolve to be healthy, says Lieberman, a professor of human evolutionary biology at Harvard University and author of “The Story of the Human Body: Evolution, Health, and Disease.” What drives evolutionary adaptations isn't health, it's factors that affect reproductive fitness, Lieberman says. “Natural selection really only cares about one thing, and that's reproductive success.” Evolution favors traits that allow a species to produce lots of offspring.</em></p><p><em></em></p></blockquote><p></p>
[QUOTE="croaker24, post: 22459, member: 900"] I was pretty sure you were doing this specifically to get a reaction :) Did not want to disappoint you. If you want to read a good book about human evolution and a perspective on Paleo - try: "The Story of the Human Body" by Daniel Lieberman - head of the dept of human evolutionary biology. A little long, very detailed, and maybe dry at times - but fascinating stuff. Some random quotes -- [I]Another problem with the paleo diet is that it makes unscientific assumptions about what our ancestors ate, Lieberman says. “There was no one single paleo diet; there were many,” he says. Our Stone Age relatives lived in a diverse range of habitats, from tropical regions of Africa to rain forests, boreal forests and tundra regions, he says, and their diets varied according to what was available in these habitats. “There is no one time and place and habitat to which we're adapted,” Lieberman says. But other pieces of paleo diet advice contradict what we know about human evolution, he says. For instance, paleo diets forbid dairy products, but numerous people around the globe have inherited a genetic mutation that enables them to metabolize milk as adults. This trait evolved independently at least seven times, Lieberman says, so it's simply wrong to say that humans haven't evolved to eat dairy foods. Nor is it correct to assert that our paleolithic ancestors' diets were devoid of grain. “We know that hunter-gatherers in the Middle East were eating grains,” Lieberman says, because archaeologists have found remains of wild barley they were gathering, along with the mortars and pestles they used to grind this grain into flour. Not every population ate grains, Lieberman says, but those who had them available certainly did. “Whether they were healthy was beside the point,” he says. [/I][I]Why should we eat like our ancestors did during the Paleolithic period, which ended about 12,000 years ago? Because our genes have changed very little in the 300 or so generations since then, said Cordain, and they're adapted to a world where food was hunted, fished or gathered from the natural environment. Our bodies didn't evolve to run on the refined foods found on grocery shelves today, he says.[/I] [I]But nor did we evolve to be healthy, says Lieberman, a professor of human evolutionary biology at Harvard University and author of “The Story of the Human Body: Evolution, Health, and Disease.” What drives evolutionary adaptations isn't health, it's factors that affect reproductive fitness, Lieberman says. “Natural selection really only cares about one thing, and that's reproductive success.” Evolution favors traits that allow a species to produce lots of offspring. [/I] [/QUOTE]
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