Because of kidney failure, our vet said our 16 yr old cat is no longer allowed to eat meat and anything else containing lots of proteins. He said to feed the cat wet Hills Prescription Diet C/D. I'm not sure about this. How good is this food and are there alternatives?
Honestly, whether the amount of proteins should be reduced or not is still under question and different vets have different opinions about it. For example, Dr. Don Hamilton says the following (the quote is taken from his book "Homeopathic care for cats and dogs", Chapter 11, Decreasing Kidney Function):

“It is commonly thought that when there is any evidence of kidney disease, the protein level should be reduced. This is not correct for most animals. Protein reduction has little impact upon the progression of kidney disease. In fact, reducing the protein level in the diet may reduce the effectiveness of the kidneys (the glomular filtration rate) is tied to protein in the diet, and reducing the protein reduced the filtering thus decreasing the excretion of toxins. (In rats, extra protein induces excessive glomular filtration, and restricting dietary protein prevents progression of renal failure. Though this has not been shown to occur in dogs or cats, this data is used to support protein restriction in these animals. I believe this is not correct, as dogs and cats are carnivores, whereas rats are primarily herbivores; this difference would account for different protein needs).”

I personally think that if your cat has been on meat for his entire life, there's no need to change his diet all of a sudden. It can do more harm than good. I'd also try to find a holistic or homeopathy vet and see what he thinks.
Agreed! Cats NEED protein to survive and they need it from meat. Plant protein cannot supply things like B12 which is vitally important. I don't agree with a restrictive diet either. Ruslana that book sounds fantastic!
Thanks! I was thinking about it too but I was not sure. The idea of taking away the natural cat food freaked me out. I'm glad to know I'm not the only one and that my assumptions were right!!
Don't know if we're technically right but I just think there is so much wrong with removing their natural protein which is MEAT. They simply cannot get the nutrients they need from plant proteins, it's a fact. So to me anyway it's pretty cut and dry. I love that quote from that doctor Ruslana provided. I may get that book I think! For my sister's cat I use a product called Vet's Best Urinary Support. She eats them like a treat and they work well for her. Just don't give it at the same time as any other medications. The natural ingredients in it like slippery elm bark will absorb any medications so I usually give it about 2 hours later. There's also onlynaturalpet.com which makes a kidney support that works well. It's in a capsule but it's beef flavored so you can put the powder in their food if they'll eat it.
alfinnlayI may get that book I think!
I'm sure you should, I've already done so. Emotion: smile Here's the book preview. Fortunately they have displayed the necessary chapter about kidneys, so you may want to read pages 229 through 241:LINK to page 233 (where the quote was taken from).
Thanks for the link!
So he says quality is more important than quantity, and high quality protein sources include eggs, cottage cheese, milk, and yogurt, turkey and chicken. But I've heard milk is not very good for cats, and raw eggs isn't a great idea either. I'm lost now! Emotion: tongue tied Should I just switch him to chicken, then?
I'm also not sure about cutting down protein and not feeding meat at all, although I do know as cats grow older the amount of protein they require is lowered. As for hill's I have tried it before, its basically overpriced and there's no difference between feeding that and any other supermarket brand, Its all fillers and by products. Hill's has some kind of contract with vets most vets sell it because they make a profit off of it not because its good, and that's something my own vet that also carries hill's told me. Price doesn't necessarily mean good quality the ingredients is what's important and most of those company's that people rave about so much like Hill's, Royal Canine and Eukanuba are actually just fillers and by-products. If you're looking for a good food look at the back and look for foods that don't contain by-products and fillers. As for the protein I would call up another vet and get a second opinion, since I'm not a vet I can't say he's wrong but if you have doubts you should get another vet's opinion. A good choice though would probably be chicken and rice! and you can find a lot of foods with that combination, it would probably be less harsh on her body and as far as I know it's a good choice for older or sick cats.