> Cordain, who has a Ph.D in exercise physiology, assured Zuk that human beings had not had time to adapt to foods that only became staples with the advent of agriculture. “It’s only been ten thousand years,” he explained. Zuk’s response: “Plenty of time.” We have documented measurable evolution in large mammals in timespans of only several hundred years.
So, the good news is that in perhaps merely several hundred years, a diet consisting of lifetime unlimited quantities of regular Mt Dew, tv dinners, bacon, and potato chips will none the less evolve humans who successfully reproduce. Oh wait, whoops, all these people are medically crashing with lifestyle diseases at age 40 after having 10 kids. And meanwhile for those couple hundred years, any small segment of the population who avoids evolving will personally benefit..
There is also a horrific ethical component to evolving mankind for profit. So Monsanto, Dow, etc make a lot of money, at the cost of hundreds of years of humanity dying young in agony. Hmm. It sort of like saying we "should" evolve ourselves to tolerate lead in the environment, or tolerate any other poison. I don't think that quantity of human suffering because of the evolutionary process balances out with some megacorps making a couple extra bucks. I mean, if killing ourselves via diet educated us, or permanently improved the ecology of the planet, or sent us to the stars, or improved our culture, well, not definitely yes, but "maybe". But all that suffering merely for a goal of "some rich dirtbag will get richer", well, uh, "no thanks".