The scale of the problem
Veterinary bodies across Europe and North America consistently estimate that over half of dogs and cats are overweight or obese. Excess weight is associated with reduced lifespan, earlier onset osteoarthritis and increased anaesthetic risk.
Almost no owner is deliberately overfeeding. The gap between intention and outcome is a measurement problem.
Why feeding guides do not work
The figures printed on a food bag describe an average animal: intact, moderately active, in a temperate climate. Neutering reduces energy requirements by roughly a quarter, and an indoor cat’s expenditure bears no resemblance to the modelled average.
Guides also assume accurate portioning, which is where the second failure occurs.
Portion drift
A scoop is a volume, not a mass, and kibble density varies considerably between brands and even between the top and bottom of the same bag. The difference between a level and a generous scoop is easily fifteen to twenty percent.
Add treats, training rewards and food given by a second household member, and daily intake routinely exceeds the intended figure by a third without anyone noticing.
- Volumetric scooping instead of weighing.
- Treats and chews excluded from the daily calorie count.
- Multiple household members feeding without coordination.
- No adjustment after neutering or as activity declines with age.
What measured feeding changes
Weight-based dispensing removes portion drift entirely. Logging treats brings the true daily figure into view, and it is usually the moment the problem becomes obvious to the owner.
Coupling intake with measured energy expenditure closes the loop, so the target adjusts as the animal’s real activity changes rather than staying fixed at an assumption made a year ago.
A safe rate of loss
Weight loss should be gradual: roughly one to two percent of bodyweight per week for dogs, and no more than half to one percent for cats, where rapid loss carries a serious risk of hepatic lipidosis.
Any structured weight loss plan for an animal with an existing medical condition should be agreed with your veterinarian before starting.