Some examples are mango, papaya, kiwi, pomegranate, coconut, figs, turnips, parsnips, water chestnuts. Agriculturists probably lived in more temperate climates where these fruits were present and therefore might be better adapted. At the same time H-G's might do well with parsnips, turnips and water chestnuts. That doesn't mean that you couldn't tolerate them in small quantities. I've studied things like the glycemic index and the origin of different foods looking for hints.
Some general things come out but no real qualifiers.
In one place the diet says don't eat eggs at breakfast. The diet refers to using coffee to abort a severe alkaline episode. Agriculturist blood plasma tends to drift up and away from their optimal pH. Caffeine is useful since it reverses this drift and moves pH quickly back toward optimal levels in Agriculturist metabolisms. I have ordered the BioBalance book and assume that it goes into more detail about some of this stuff. For now, I'm just looking for a simple, high-level understanding.