I know that I had a 'ah hah!' moment when having new kittens in a keto/lchf household last year. If food companies and doctors can sell us/on dangerous food at worst (hello fellow type twos!) inappropriate for our species at best, what would stop largely unregulated pet food companies from doing the same thing for profit?
The answer of course - absolutely nothing to stop them. And pet food companies are less regulated than human- food companies.
And vets, like GPs and the medical profession, often get the same nutritional information that us commoners do - from the food companies. If you read the ingredients you realise what a fabulous piece of marketing 'science diet' and a word like 'purrina' (purring and pure! very clever) - are. Do we get sucked in? Oh absolutely!
Yes, as cats are obligate carnivores any carbs are inappropriate at best, but more so than us, downright dangerous - absolutely.
How many really fat cats are there about now? Just like us humans - heaps and heaps. With diabetes and kidney disease down the track, and various metabolic cancers (I'm talking cats here, but you can see how it applies to we mammals as well!)
I too found and find cat kibble to be very convenient, but read the ingredients - and wo ho! No wonder these poor cats are getting fat and sick on that diet.
If our current food environment makes us fat and sick you can bet your bottom dollar so does processed food made for our pets. I'm a cat person, so for me it is about carnivorous cats, and how they do (not well!) with carbs and 'meal' as fillers and the latter - the main ingredient often, as is 'rendered' ie very bad quality meat product.
We absolutely need to do the same thing for our cats that we do for ourselves, says me and Herr Svea. Read the ingredients on catfood, and understand what you are reading - remembering the order of ingredients is very important, buy 'grain free' - absolutely! cat kibble if you need to do that.
Cats have great intestines and so on to deal with raw meat - if they didn't they would not be a very alive species that they are today. (But I have read about this when we researched proper cat diet.) They do not have opposable thumbs and the wherewithall to start fires like we do! (To cook our meat and veg to make it easier for us to digest.) They are just fine with raw meat. And with bones! (I can't believe I actually took on board that bones were dangerous for cats in my pre-now life!) (Hey! I feel the same way about egg re we humans r!) They are absolutely not fine with veg! When starchy veg are used in cat food products it has nothing to do with nutrition, and everything to do with the profit principle. (Cheap fillers!)
But yes, they do need the organ meats as well as the muscle meat. Steak and kidney, livers, heart muscle beef - that kind of thing.
Chicken nibbles (yes - raw) have been a good easy addition to our cats' diet for the bones (teeth health). I thought good quality kibble (ie very low carb if any!) would help their teeth, but apparently no, I read somewhere. It does need to be bone.
When wondering about cats and nutrition, imho, think rodents! And yes they eat just about everything except the tails...
And birds. (This is a problem in NZ because the poor old native birds, some being flightless, have a very tough time with that excellent of all predators - our kitty cats - but that is a whole other story.)