Weight Loss In Older Cats. Other signs related to weight loss may include the following: Most common in older cats, this condition causes elevated levels of the hormones t3 and t4, which regulate the metabolism.
Your cat will eventually lose her appetite, drink an increased amount of water and become lethargic. Weight loss commonly afflicts middle aged and older cats. If your cat is losing weight, it is important to consult your vet as soon as possible.