He is only fed wet food though-think I will look for one with a better protein content.
If he's hunting and eating his kills, I doubt if he'll need more additional protein than is in the tinned food
Cats have a high-protein diet and are therefore prone to kidney problems in later life, I've been told, so it's best not to give them too much extra protein, as long as they're getting enough.
Eating their kills is a great way of keeping their teeth and gums healthy too
. The only cat of mine that had gum problems was the one that was too impatient to be a good hunter.
Even though I fed him chunks of raw meat (that he had to chew) and dog biscuits (that he had to crunch), he still didn't have such good gums as the others, who hunted.