Cats can technically survive without food for about one to two weeks if they have access to water. However, this does not mean it is safe or healthy for them to do so. Without protein, serious health issues can start within three to four days, even if water is available
. More specifically:
- Cats should not go more than 24 to 48 hours without eating, as nutritional deficiencies and health problems begin quickly
- After about 48 hours without food, cats may show weight loss, dull fur, and nutritional deficiency
- By 72 hours (3 days), cats risk developing fatty liver disease (hepatic lipidosis), a potentially life-threatening condition
- After a week without food, muscle loss and immune system weakening occur, increasing health risks
Cats also cannot survive long without water-generally no more than 2 to 4 days-and dehydration can cause serious complications even after the first 24 hours without water
. Kittens have much shorter survival times without food, becoming weak and dehydrated within 24 hours and requiring urgent veterinary care
. In summary, while cats might survive up to two weeks without food if hydrated, going more than 24-48 hours without eating is dangerous and requires veterinary attention to prevent severe health consequences
