Watch their weight
Adult cats tend to gain weight, and as you already know, this is not good for their health, especially as other diseases occur with age. So, if you see any weight changes you have to schedule a vet consultation as soon as possible.
“Don’t assume that because your older cat is eating normally, he’s not losing weight,” Dr. Pittari says. “Gradual changes in weight are hard to notice and monitoring your cat’s weight is one of the most important reasons for routine examinations.”