Now we realise that not only were the lard-cooked fries more crispy and better tasting, they were probably healthier (relatively) as well.
I think the matter is that eat what is naturally available in the environment you live and it should be ok. Also with food act always like dont have money to spend more than what you really really need then we should be ok.
Because we all live on the African savannah, where humans evolved?
I've stopped eating carbs over the summer. There is a "correct" moderate amount of protein to eat, hence I eat lots of fat (including saturated) to make up the rest of my calories. I've lost 33 pounds so far.
It's very likely the final answer will be genetics dependent not a blanket one.
On a side note there is much of food and dietary research from the 50s onward that needs to be reviewed if not done over. I am still fascinated by the fight over salt, something as a cook I never believed as I cannot imagine cooking without it. Having the majority of relatives on similar diets who lived into their 90s its either genetic or just, well its anecdotal at best.