Yes, a health and weight log is well worth keeping for a Cyprus Cat. This large island breed carries its size in muscle, with notably long, powerful hind legs and an athletic frame, and that build defeats casual judgement: a Cyprus who has gained soft weight around the middle can still look impressively solid, while a lean, fit one can be mistaken for underweight by anyone expecting a rounder cat. Regular numbers end the argument. A log gives you this individual cat's normal weight, appetite, and activity written down, so changes are measured against his own history rather than against a guess or a generic chart.
Separating muscle from fat in a powerful breed
Use your hands as well as the scale. On a fit Cyprus Cat you should be able to feel his ribs under a thin covering when you run your palms along his sides, see a waist from above and from the side, and watch him jump and land with the easy power those long hind legs are built for. Log a short body-condition note beside each weigh-in, describing what you felt: ribs easy to feel, ribs harder to find, waist less clear. That pairing of number and feel is what separates healthy muscular heaviness from gradual fat gain, because the scale alone cannot tell you which tissue arrived. Note his jumping too; a cat who stops taking the high route onto furniture, or lands heavily and avoids repeating a leap he used to make easily, is giving you information that belongs in the record the day you see it.
What else belongs beside the weights
Keep entries brief and consistent: food eaten and any refusals, water intake as you notice it, litter tray habits, play and hunting-style activity, grooming and coat state, and general demeanour. For a Cyprus Cat, who often bonds closely and follows household routines, a change in sociability deserves a line of its own: hiding, irritability when handled around the belly or back legs, or sleeping through times of day when he normally patrols the house.
How often to weigh and review
Weigh a healthy adult Cyprus every few weeks, and a kitten or a senior more often, using the same scale and method each time so the numbers are honestly comparable. A carrier-weighing trick works well for a big cat: weigh him in his carrier, weigh the empty carrier, and subtract. Review the log every couple of months by reading down the column of figures, looking for direction rather than drama. Small wobbles within his usual range, explained by a hot spell, a house move, or a changed feeding routine, are the log doing its job quietly. A steady march in one direction across three or four entries, even a small one, is the signal worth acting on, because gradual trends are precisely what daily life with a cat conceals.
Acting on what the record shows
Take the log to every veterinary appointment, and let it raise questions you would otherwise forget in the room: the appetite dip from two months ago, the week of increased drinking, the jumping change. Contact your vet promptly if the entries show continuing weight loss alongside good appetite, rising thirst or urination, repeated digestive trouble, or a drop in his usual athletic activity, and seek same-day help for refusal to eat, breathing difficulty, or inability to pass urine, which is an emergency in any male cat. Keeping the whole running record in KinsLe as his Pet Passport means those weights, notes, and dates are already gathered into one portable packet when you need them, whether that is a routine check, an urgent visit, or a stay with a trusted sitter.