When raising a pet cat, the owner can feed the cat canned food once every 1-2 weeks. Each time, the canned food can be mixed into the cat food so that the cat can eat it together with the cat food.
For cats with sensitive stomachs and picky eaters, feeding them once every two weeks can provide them with essential nutrients, prevent them from developing picky eating habits, and also prevent them from becoming overweight. 
If you're using canned cat food as your cat's main diet, you can feed them one 85g can at a time. You can also add kibble or other vegetables to the canned food to provide a balanced diet. A 4-month-old kitten doesn't eat much yet, so you can feed them about 150 to 200g of canned cat food a day. You can increase the amount as they grow older.
Generally speaking, canned cat food is high in energy and protein, which is a big meal for pet cats. Therefore, you should be careful when feeding your cat canned food, and do not feed it to them at every meal, let alone feed them large amounts of it for a long period of time.
Furthermore, try to avoid feeding kittens canned cat food directly, as this can easily lead to indigestion and is detrimental to their growth.
