So I've been going for the Gourmand achievement for about two months now (not hardcore, but still) and the thing that I've found is that, after the first few pages of foods eaten, it becomes difficult to find which foods I've fed and which ones I haven't.
I know that you can't read books to pets twice, so I was thinking it would be cool there was a way that you could make it so that you can only feed your pet unique items. Like, maybe by checking a box on the pet's profile or something?
I don't know if this is completely impossible to do because of coding or something, but I just thought that it would make it a lot easier for those who are trying to get the Gourmand achievement.
Edit: I do use SubetaLodge, but I've found that even with the mass add, not everything gets added onto the lists, and it's a pain in the butt to try and figure out what's been missed.
Not sure if this is even remotely plausible, but if not (or in the meantime) I'd reccommend Subetalodge. You can make an account there and make a checklist for foods your pet has eaten.
[edit] It's probably not possible. It would fuck with Major Drills' quests, probably among other things tbh