Originally Answered: Hill's I.D. Feline.same ingredients as store brand. I don't see a difference in ingredients.in my cats stoo
Cat poo is one thing I've learned a lot about! Poppy had loose stool for the first two years of her life. The substandard vet I saw never found anything wrong with her.
This, and her weight problem, started me on my quest which led me to learn about proper cat nutrition.
You're absolutely correct that the Hills is garbage. Cats with "sensitive systems" most often react to the grains in the food, with corn, wheat and soy being the most common.
I believe that there's a good chance you'll solve her problems if you simply switch her to a good quality canned food. Or even a grainless dry food.
Poppy is a good example of this. After switching her to an all canned diet, her stool consistency improved immensely. And now that she's eating raw, you could bounce a quarter off those things. If you should ever want to bounce a quarter off of cat poop, which would be pretty weird. But I guarantee they'd bounce!
From my blog:
DIGESTIVE UPSETS IN CATS
Digestive upsets can take more than one form and of course may have more than one cause.
One symptom is vomiting and the other is loose stool or diarrhea. And then there's farting.
Diarrhea is much more serious and a cat suffering from it should always be checked by a vet asap.
In cases of loose stool, a sample should be taken to the vet to rule out any parasites or conditions. Assuming there is none, then you have to look to the diet.
Ditto for vomiting. Excessive hairballs can often be dealt with by daily grooming. I'm not a big fan of supplementing for hairballs - I think the cause should be dealt with not just the symptoms. And I would never feed a hairball control food for the same reason, and because excess fiber isn't necessarily a good thing. UPDATE: My vet mentioned that fish oil may be of help with hairballs. I forget why, but I think she said it helps break them down, or aids in their digestion....either way, it's a good thing to add to the diet as it will also help skin and coat. It has an anti-inflammatory effect which may aid digestion as well.
But once you've ruled out diseases or parasites, the most likely culprit is diet. Crappy foods contain ingredients that many cats are unable to tolerate. But even some very good foods can disagree with a cat, either "just because" or perhaps because they've been switched to it too quickly. Or perhaps a particular protein source disagrees with the cat. UPDATE: My vet recommends the use of digestive enzymes when feeding foods that are higher in carbs. This will help the cat to digest them properly. They're not as necessary if you're feeding grainless foods.
Again, the solution in most cases is going to be to switch to another, perhaps better food. It does have to be done slowly, and you may have to try more than one food, but the results are worth it.
If it seems that you've tried every possible food and have been very patient in switching the cat to the new food, you might consider supplements. These include slippery elm or probiotics. I personally suggest Jarrow's Pet-Dophilus as a good probiotic. UPDATE: When you begin pro-b's, you may not notice an immediate improvement. Poppy actually got gas when I started her on them. My vet's recommendation is to not give them everyday - perhaps 2-3 times per week or every other day. Also, once you've finished a bottle, buy another brand. Variety is good here. And don't buy pro-b's for humans. It's not bad, it's just not the right stuff for them.
Slippery Elm can be used (if you know what you're doing) for constipation, diarrhea and loose stool - it's sovereign, in or out, and is not harmful - although it should not be given at the same time as any other medications because it tends to dilute their effects. It's considered to be a demulcent which affects water balance in the digestive system.