What I meant is we shouldn’t exclude food from other areas than central tropical Africa...
I agree with that (if the food doesn't give the person any problems).
...because if we do so, we should exclude almost everything such as blackberries, ocean fish and shellfish, beef, mutton, seal, caribou, hen’s eggs, chestnuts, walnuts, hazelnuts, pine nuts, almost all vegetables and fruits.
If the rule is that the specific food species has to have originated in Stone Age East-Central Africa, then that would be correct, but if the rule is that it's OK to eat the equivalents of foods of Stone Age East-Central Africa, then there were berries, freshwater fish, ocean fish, vegetables and fruits in East-Central Africa, so that those that are descended from or very similar to those species might be considered OK, or at least potentially OK.
GCB had suggested that the fruits of SE Asia are very similar to the fruits of human ancestral habitat (presumably Stone Age East-Central Africa). Maybe they are, maybe they aren't. I don't know and he didn't provide any evidence to support this contention. It would be interesting to know. One thing to consider is what time period to consider--10,000 years ago, 30,000 years ago, 70,000 years ago, 100,000 years ago, 1 million years ago, 2 millions years ago, etc.?
Art De Vany claims that the key period is around 70,000 years ago because there was a bottleneck of H. sapiens at that time. He says that there was an intensification of the ice age combined with a major volcanic eruption that darkened the sky, resulting in a dramatic drop in temperature so that East Africa wasn't tropical at the time and that only a few thousand H. sapiens survived, which he says they did by living by the shores of freshwater bodies of water and the sea coast and increasing intake of fish/shellfish/seafood to offset the decrease in available land mammals and fruits/veggies. Whether he's right or not, I don't know. He at least provided some details about why he thinks that fish/seafood is a key ancestral food beyond taste/smell/texture and current climate of the area. Come to think of it, Art is probably another decent source of info for answers to the original question of the topic of this thread.
Then, only safus, African insects and larvae, gazelle, giraffe, zebra, hippopotamus and elephant meat would be real paleo food and raw paleo nutrition would be totally impracticable.
According to De Vany, fish, shellfish and seafood were also consumed in Africa going back at least 70,000 years. I don't know when hominins first started inhabiting sea coasts and accessing seafood. I'll bet ocean shellfish were eaten as soon as seacoasts were inhabited, as freshwater shellfish were consumed before the habitation of seacoasts.
So, why exclude cempedak, cherimoya, soursop, sapote mamey, sapote chico, sapote blanco and durians, for example, if we include blackberries and beef as paleo?
I'm not excluding anything, but there it's possible to imagine plausible hypotheses for eating just Eurasian and African foods and their descendents as well as for eating just African and tropical foods and all those foods. There hasn't been a lot of research on the subject, so I think it's premature for people like both GCB and Art De Vany to draw solid conclusions (and the fact that their conclusions are different supports the need for more research), but it is interesting to see their different opinions, though it's not a huge deal to me either way.
Yes, info about the origin of plant food is difficult to find, I realized that some years ago when I asked myself the same type of questions you currently raise. But I remember GCB has clarified his stand on that issue in a post here somewhere.
Yes, as I mentioned, he backed off somewhat from his original claim. Perhaps he initially said more than he meant. It could be just coincidence that the writings of he and other Instinctos include so much on South/SE Asian tropical fruits, but it is an interesting coincidence.
I think there’s no problem with the sugar in fruits
It depends on the individual, the quantity consumed, and other variables, just as it does with animal fat and protein.
Yes. perhaps, who knows? What I meant is that we don't really know, ...
Precisely my point.