A cat not eating can potentially be a sign of a serious underlying disease such as kidney disease cat flu diabetes fever hyperthyroidism and pancreatitis Harrison said. Chances are the kibble will look exactly the same to you but your cats more developed senses tell them differently. What Foods Are Bad For Cats How To Prevent Your Kitty Eating Them In 2021 Homemade Cat Food Cat Nutrition Hypoallergenic Cat Food Why might your cat stop eating. . Causes Symptoms Treatment. In many cases this may be related to a change in the texture smell or taste of the food itself. Obstruction or foreign body ingestion Cancer Pancreatitis Inflammatory bowel disease Constipation Nausea. Environmental stressors may make your cat unwilling to eat. A loss of appetite is usually a bodily response to an external illness. While most cats do some dont. Usually a cat gets bored eating the same food for about a year. Cats need some ...