Once upon a time in the country they ate dry cat food as a snack with beer. We ate a lot, it was quite tasty, it went well with the lager, and then no one had any problems)
It is possible, but is it necessary ... I confess, I knew one poor family of 4 members. They had two dogs and three cats and had to buy food for them. I was sitting completely calmly at their house in Irkutsk, and suddenly my younger son offered me something strange. I tried it. At first I didn’t understand, I was 7 years old and I didn’t understand dog food, and then I was stunned when I began to notice them eating these crisps, like snacks or something like that.
Yes, absolutely you can.
If it is the best available cat food, for example a holistic of one of the famous brands, then it will be possible to eat it for a long time without significant harm to health.