Today is the day for New Year's Resolutions.
Fat cats are at risk for health problems. Diabetes mellitus is one. In an obese cat stress can trigger a metabolic change that causes a complete loss of appetite, and causes the liver to deteriorate and gradually become infiltrated by fat. Untreated cats die and treatment is not always successful. Dieting can be a stress for a cat, so obese cats are really between a rock and a hard place.