To improve a cat’s immunity, regular deworming and vaccination are the best ways to improve immunity. Owners should use nutritionally balanced cat food as their staple food to provide their cats with the most basic nutrients to ensure their cats’ health. ​​​​​​

You can also feed your cat some cooked chicken breast, beef, fish and other protein-rich foods. Secondly, owners should allow cats to do some exercise appropriately to enhance their physical fitness.