I gather the gist was to eat as your ancestors did.
I don't know about yours, but my ancestors ate lots of preserved food. Preserved beans may not have the same texture and crunch as those fresh off the vine, but it turns out they're available during winter. Were the originators of the paleo diet from California, perhaps? Hmm. Nope, Voegtlin was from Seattle--winters are not exactly cold there, but they're not good for growing.
So my ancestral diet would be fresh food in season, and preserved stuff the rest of the year. Meat as available ("Before food waste, let belly burst"), bread, fish as available... Today: Fresh food is in the fresh food section of the grocery store, fresh meat is in the meat section, and preserved food makes up a lot of the rest. Just what the doctor ordered! Beef jerky and a loaf of bread and a helping of preserved green beans (from a can)--eat like your ancestors did. I'll bet they fixed up things like this. OK, without the potatoes--maybe oats.
Don't get the wrong impression: I'm surrounded by very good cooks and I no longer rely on "bachelor hash." But you can find cuisines in this country based on what you can fix out of cans and dried foods, and they seem as worthy the title of "ancestral style" as anything else. Only the rich get to eat fresh all the time.