Yeah, I was thinking the harshness of world gen was the main culprit. Humans have more of a preference for plains and grassland, whereas ponies quite like the forests, so that's probably the problem. This is all stuff that'll be hammered out by Toady as trading and other civ interactions improves, so I'm loathe to jerry rig a heavy-handed solution. I'll put in [NO_EAT] and [NO_DRINK] but comment them out, so people can turn them on if they want it.
While I was messing around getting carrots and celery set up, I noticed apples weren't set up for wood conjuring, or even considered edible without being sliced, brewed, or turned into sauce. What I'll probably do is finish up diamond dogs, griffons and the new ents, then release the new version and take my sweet time on cocktails, gelatin and dough, since there's a fair few little problems I've come across and patched up.