Direct answer: use regular weight and body-condition checks together, then ask your veterinary team to show you the appropriate scoring method. A large frame or fluffy coat can make visual guesses misleading.
Use the same method each time
Weigh on the same suitable scale and record the date. Look and gently feel for changes around ribs, waist and abdomen without forcing the cat.
Do not compare breeds by one number
Healthy size varies by individual, sex, age and build. A Maine Coon should not automatically receive more food simply because the breed is large.
Act on trends
Contact your vet about unexplained gain or loss, appetite changes or difficulty eating. Never crash-diet a cat.
A practical furniture note: Kitty Buffet can support this routine where its current specifications suit your cat and room. Product furniture cannot diagnose or treat a health or behaviour problem.
