>I think a better heuristic, is "Just eat what your great-grandma ate"
Unfortunately that's not always possible as we have selectively bred over time for appearance, size and/or sugar content in our fruits, vegetables and even meat at the expense of macro- and micronutrients.
We have also begun overly sanitizing our foods, pasteurizing everything and adding antibiotics to the detriment out our gut microbiome.
In many cases the food our great grandmas ate doesn't exist anymore.
Unfortunately that's not always possible as we have selectively bred over time for appearance, size and/or sugar content in our fruits, vegetables and even meat at the expense of macro- and micronutrients.
We have also begun overly sanitizing our foods, pasteurizing everything and adding antibiotics to the detriment out our gut microbiome.
In many cases the food our great grandmas ate doesn't exist anymore.