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According to both of my cat's vets (the regular and the specialist), a food trial should last eight weeks. If the food trial has been pure (the cat is getting no other outside food or treats), then after eight weeks you know one way or another whether it's a food allergy.
If one goes as far as a colonoscopy, the biopsy can detect the presence of allergic reaction -- I think the vet said you would see elevated levels of eosinophils. In my cat, they weren't elevated, so it's most likely not an allergy.
But then they say allergy diets with simpler food sources often help in long-term colitis maintenance... so it's confusing.
The product is Petromalt Fiber Capsules for Cats. But it sounds like it's made from the same seed husks as Metamucil, so it might not be worth the effort. Maybe in terms of palatability -- it's malt flavored, which apparently cats like.
My cat's half as big as yours, 13 pounds.
If one goes as far as a colonoscopy, the biopsy can detect the presence of allergic reaction -- I think the vet said you would see elevated levels of eosinophils. In my cat, they weren't elevated, so it's most likely not an allergy.
But then they say allergy diets with simpler food sources often help in long-term colitis maintenance... so it's confusing.
The product is Petromalt Fiber Capsules for Cats. But it sounds like it's made from the same seed husks as Metamucil, so it might not be worth the effort. Maybe in terms of palatability -- it's malt flavored, which apparently cats like.
My cat's half as big as yours, 13 pounds.
