There was once a time in history where lead piping was normal and it was normal to have heavy metal poisoning.
Even just to say whole plants and animals, in about the proportions that they were naturally available about 40000 years ago.
There's no reason to expect this to give you increased longevity though, dying was adaptive to early humans.
unless you consider the above don't have an impact on our food eating and fat storing mechanism.
Humans aren't even monkeys. So it's not surprising that "works in monkeys" is a mediocre proxy for "works in humans".
In a pilot human trial, three cycles of a similar diet given to 19 subjects once a month for five days decreased risk factors and biomarkers for aging, diabetes, cardiovascular disease and cancer with no major adverse side effects, according to Longo.
BOOM.
Also, I never said that intermittent fasting was ineffective in humans. I said that animal models do not always map well to humans. Scientists who use animal models understand their shortcomings. You should do some basic research before throwing up your arrogant "boom" as if you proved something.
Or the one you randomly quoted but didn't even bother to provide a link to? The one that did a pilot study in humans specifically because the researchers know that animal studies don't always map well to humans? The one that did a 5 day fast rather than just skipping breakfast? I read that one, too.
SO its up to the person and his doctor to figure out what is good for him/her or not and what keeps the individual healthy.