I saw a great documentary last week on mountain gorillas. One thing that stood out to me was a section where the troop found a chunk of deadwood - which the presenter described as a "gorilla delicacy". I've also read (and Mark Sisson mentioned on a prebiotics post he did a few months back) that many primates consume soil from time to time.
We spend a lot of time analysing our current food universe and separating them into paleo and non-paleo foods, but my question is - what else could or should we be eating that nobody consumes at this point in time? I'm not advocating eating soil or deadwood, but am curious as to what our ancestors may have eaten that doesn't even seem to be an option in today's world.
As a kid I didn't bother about washing the fruits, berries, herbs, buds, nuts, mushrooms and other plants that I found while playing in the garden or in the wild... just rubbed off the soil so it wasn't too crunchy to eat.
My daddy told me which plants are edible or delicious - he learned it from his greatgrandmother during worldwar 2.
Today my daughter enjoys strolling around with me and picking here and there any edible plant-thing we can find.
I work around horses, don't wash my hands before I eat lunch- mostly works for me. Some would call that dirty or "gross", but I can't see that Grok would have run to the nearest stream after killing and eating his dinner just to wash his hands. Maybe, but we've no proof.
Bugs are a relatively untapped food source. If I knew more about the nutrient profiles and safety (are any to be avoided?) and could get over my squeamishness, I would be out "hunting" for critters a couple of times each week.
There are many kinds of wild edible plants...but of course it requires a lot of knowledge and discretion. You may not know that the kudzu plant is edible, its leaves, its stems, its root. The root (which is pure starch) however isn't to my knowledge nearly as nutritious as commonly eaten root vegetables (like potatoes), but there are medicinal benefits.