I think some part of Willow's appetite issues have been the taste of the low phos foods; honestly we've started cutting them with Fancy Feast, it seems to be the only way she *likes* them (and she'd definitely prefer ff straight; it's how I meatball her pills lol). At this point in her life, she seems to have few enough enjoyments we've decided to let food be one of them, so we're not constantly chasing her and forcing her to eat something she doesn't *want* (unless she's sick and off her food, in which case we have to harass her, sigh.). We'll just try to keep *some* low phos food in her meals to bring down the total, and monitor her levels; we'll add binder if that time comes.
Not saying that's the right thing for Bella

And if I happen to find any more low phos foods, we'll definitely try them! Options are limited around here. Good luck with the handsome boy, and hope you feel better soon!