Cats, as all cat owners will know, are hunters that consume prey such as rabbits, small mammals and birds. Whole live prey would, of course, be a perfect food - and anything other than a whole, live animal is not what we can call "natural pet food". Naturally, animals have been evolving and adapting to living on this beautiful earth for millions of years, and if we use the template of the natural diet that they would choose for themselves, we can make a nutritious and fully balanced diet for any species of animal, especially our pets.
When we feed our cats a dried food, usually full of cooked cereal, the only real benefit is that of convenience for the pet owner. Cats do not require starchy content at all in their diet, this should always be kept to a minimum or even not fed at all.
This sort of diet, as with our other popular pets, dogs, can lead to digestive issues, obesity, and diabetes. All of these diseases take some years to establish in your pet's system, with the result that it is not often our quickest conclusion that the problem might be diet related. However, even if your cat did not start out with raw kitten food in his youth, it is not too late to make a change and he or she will thank you for it!