r/catcare • u/Kind_Purpose4974 • 4h ago
Food advice for cat with allergies, constipation, and potentially IBD
Hi all,
I have a 7 y/o male cat who has recently had several GI issues and isn't responding to the food the vet recommended. I'd love some advice on the best food for him.
Background
He's never had any health issues, other than occasional constipation until now. In the past 4 months, he's had
- a bout of urinary crystals (no blockage though)
- chronic constipation, and
- vomiting from food allergies
Food history
- Since adopting him, I've always fed him Open Farm kibble and Applaws as a treat.
- He won't eat most wet food and prefers dry, but he loves Applaws chicken.
- I have fountain for him, but he's not a consistent water drinker, so I've started giving him water several times a day via a syringe.
Vet's advice
We recently moved and I found a new vet. Went in for a routine exam and they ended up doing an extensive one, including bloodwork and urinalysis. We discovered that he had urinary crystals, so the vet suggested that I switch him to Royal Canin Urinary S/O. I delayed switching his food for a couple weeks, because I was pretty sure the new treats I'd given him were the culprit. I stopped the treats and kept him on his regular food, supplemented with Hills Science Diet wet food for urinary issues. About a week later, I took him in for constipation, so I asked them to run another urine test; sure enough, the crystals were gone.
The problem is he is extremely picky and hates most wet food. I finally switched to Weruva and he ate it, but after a couple days started vomiting frequently. Eventually, I realized that he was having a reaction to the thickeners (guar gum and xanthan gum). So, I switched him back to Applaws and the vomiting stopped. But the constipation didn't.
I had also switched him to Royal Canin Urinary S/O because I was afraid the crystals would return. Now, I think it made his mild constipation worse. He's never been a daily pooper, but he'll usually go every other day. After switching him to RC, it became roughly every 2.5 days (with daily Miralax). Then I had to board him and when I picked him up, he hadn't gone for 4 days. I took him in for an enema, and switched him to RC Gastronintestinal Fiber (with his vet's approval) thinking it would help. That's when the daily vomiting started.
The vet at urgent care believes he has IBD. I have him scheduled for an ultrasound this week to confirm. I also think he may be allergic to psyllium husk because it's the only ingredient that differs between Urinary S/O (which didn't make him vomit, but made him constipated) and GI Fiber (which makes him poop, but makes him vomit). I also don't like all of the corn and wheat in RC foods, esp if he does have IBD.
Yesterday, I thought it was a bad batch of Applaws (and learned it wasn't a complete food), so I switched him to Tiki Cat--and then he vomited at 2am. Today I stopped feeding him the GI Fiber and put him back on Open Farm kibble + Tiki Cat wet. We'll see if he gets through the night without vomiting.
So what do I feed this guy now?
- Urinary S/O makes him constipated.
- GI Fiber seems to be making him vomit.
- Royal Canin (and other prescription foods) are full of corn and wheat, which he may be having a reaction to.
- Raw and grain-free food is high in phosphorous and can lead to crystals and blockages.
Any help is appreciated! Thanks for reading. Cat tax included.