[throwup238]

> Well, the prior is that our ancestors had to survive on what was available, not live optimally healthy lives even during their reproductive years.

That's true but our ancestors weren't some poor apes constantly on the verge of starvation scrounging for any kind of food they can find. If contemporary tribes are any indication, in the tropics food was very plentiful and their diet was diverse, long before they started domesticating animals and cultivating plants. These ecosystems support hunter gatherer tribes to this day, the last few remaining holdouts from agriculture and pastoralism. That allowed archaic humans to spread as far east as Indonesia more than a million years before they made it north of the Mediterranean.