Pregnant or Lactating Cats
A cat's energy intake should be increased gradually by up to 50% over her maintenance intake through pregnancy. You can use kitten food to provide nutritional support during the last few weeks of gestation.
After birth, the mother cat's energy needs increase by 50% to 75% over normal in the first week to twice normal the second week and to three times during the third week. The third and fourth weeks are the most demanding because kittens are still consuming milk and have not begun to eat dry or canned food. Once kittens begin weaning, the mother cat should be tapered back to normal food portions to avoid unnecessary weight gain.
Food and energy requirements may vary for your adult cat. In general, indoor cats have less opportunity or need to exercise than outdoor cats. As a result, indoor cats are more prone to obesity, and regular exercise should be encouraged. You may want to control your cat's portions and choose a cat food made to help maintain weight.
Cats spend a considerable amount of time grooming. In the process, hair can be swallowed and build up in the stomach. If the hairball doesn’t pass into the intestines, a cat may try to cough it up. A special diet can help decrease the likelihood of hairballs, but you may decrease its effectiveness if you combine it with other foods.