Why Should I Keep a Regular Weight Log for My Pet?
A few hundred grams is a rounding error for a person but several percent of a small pet’s body — a simple monthly log turns that invisible drift into an early warning.
You see your pet every day, which is precisely why gradual change is invisible: a cat that loses 300 grams over three months looks the same at dinner. Yet for a four-kilogram cat that is over seven percent of body weight — the human equivalent of losing five kilograms without trying, a finding no physician would wave off.
What the trend line catches early
Unplanned weight loss is an early flag for kidney disease, thyroid disorders, dental pain, and digestive disease, while steady gain quietly loads the joints and raises diabetes risk. A monthly weigh-in — step on a scale holding the pet, subtract yourself, or use the clinic scale on visits — takes one minute, and logging it beside diet changes gives the number context.
Healthy weight bands differ by breed, frame, and age, so judge changes against your animal’s own baseline rather than a chart average — a two to three percent move sustained across a couple of months is worth mentioning even if the pet “looks fine.” Bring the log to the annual consult; a veterinarian can read more from six dated numbers than from a single weigh-in.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.