Said It Here

What to do when vet recommended cat food causes digestive issues

Veterinary-recommended cat food brands can sometimes cause severe digestive problems like vomiting, diarrhea, and bloody stools. Choosing a food your cat actually tolerates lets you avoid these constant health issues, even when it goes against your vet's brand advice.

Overview
People affected2 accounts across 1 forum
Workarounds found3 items attempted
Community agreement1 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    switching to alternative brands like Applaws that cats tolerate without health issues
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  2. 2
    combining canned food in the evening with dry food in the morning and freeze-dried snacks
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  3. 3
    Choosing a prey animal like a rabbit instead of a cat if a vegetarian pet is desired
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In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/cats2 people · September 2026

“Our vet recommended to give our cats Royal Canin. They had been eating it for 2 years, and a whole ton of digestive issues came from very beginning: pooping with blood, vomiting, diarrhea with some kind of mucus, it was not good.”source ↗

“Our vet said that it’s not the best and they recommend getting back to Royal Canin as it is “the best quality out there” based on vet’s words, but I really do not want to go back to it as it’s constant digestive issues for the cats…”source ↗

so_tangled · r/cats · 1 upvotes

“I want to hear from people who have their cat especially Ragdoll to be pet only being vegetarian.. like Their veg food and all..”source ↗

“I am just asking how I can keep him veg and yet the most healthy..”source ↗

Effective_Bag8365 · r/cats

Where this came up

People with this problem also raised