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If you want to return to your ancestral diet, the one our ancestors ate when most of the features of our guts were evolving, you might reasonably eat what our ancestors spent the most time eating during the largest periods of the evolution of our guts, fruits, nuts, and vegetables—especially fungus-covered tropical leaves.
But the truth is, for most of the last twenty million years of the evolution of our bodies, through most of the big changes, we were eating fruit, nuts, leaves and the occasional bit of insect, frog, bird or mouse.
Here though I am using the definition of vegetarian that most humans use where someone is a vegetarian if they decline meat in public but occasionally, when no one is looking, sneak a beef jerky. The modern vegetarian's illicit beef jerky is the ancestral vegetarian's crunchy frog.
In 1995, Leslie Aiello and Peter Wheeler developed the expensive tissue hypothesis to explain how our huge brains evolved without bringing about a tremendous increase in our rate of metabolism. Aiello, then of University College London, and Wheeler, then of Liverpool John Moores University, proposed that the energetic requirements of a large brain may have been offset by a reduction in the size of the liver and gastrointestinal tract; these organs, like the brain, have metabolically expensive tissues. Because gut size is correlated with diet, and small guts necessitate a diet focused on high-quality food that is easy to digest, Aiello and Wheeler reasoned that the nutritionally dense muscle mass of other animals was the key food that allowed the evolution of our large brains. Without the abundance of calories afforded by meat-eating, they maintain, the human brain simply could not have evolved to its current form.
originally posted by: Grimpachi
Nowhere in the history of my ancestors did they ever say "I will pass on the steak could you hand me some of those moss-covered leaves."
originally posted by: tulsi
But where are are right now is morbidly obese, diabetes, cancer, etc.
No?
originally posted by: tulsi
But where are are right now is morbidly obese, diabetes, cancer, etc.
No?
originally posted by: dubiousatworst
Cows are also "vegetarian" but if you give them the chance to eat meat, they will.
citation since you all want to see a video of a cow eating a chicken
www.smithsonianmag.com...