Does it matter if I feed my cat with canned food every day?
Some people say it is beneficial because wet food is better to cat’s kidney, while some people claimed too much canned food might be harmful to cats.
An AAFCO approved, good quality cat canned cat food is sufficient for meeting nutritional needs, and it is correct that the added water content can help with maintaining hydration, and thus help the kidneys.
Too much canned food can be bad in the same way that too much of any food can be harmful – if it is excessive to the cats nutritional requirements. Without hard foods to chew or gnaw on, cats on 100% canned food diets are at greater risk of developing periodontal disease and gingivitis. In which case, regular tooth brushing at home and dental checkup by vet can help.