Hepatic Lipidosis, also known as fatty liver syndrome occurs when an obese cat loses weight too rapidly. Usually we rejoice when our full-bodied feline friends shed a few pounds, but when it happens too rapidly they can become very ill. Often times owners won't notice an issue until the cat stops eating or begins vomiting. It is crucial to have cats who are rapidly losing weight or not eating normally evaluated by your veterinarian. If caught early enough, with supportive care they can recover most of the time. High-protein diets, IV fluids, and in some serious cases a feeding tube are used to treat hepatic lipidosis.