The Dog Obesity Epidemic
40-56 % of dogs in Western countries are overweight or obese. It is the most common nutritional disease in domestic dogs — and one of the most underestimated, as many owners see their "chubby" dog as healthy and well cared for. In reality, obesity shortens lifespan by up to 2.5 years and accelerates arthritis, heart disease, diabetes, respiratory problems and certain cancers.
Body Condition Score (BCS): How to Assess Your Dog
- 1-3/9: too thin (ribs and spine visible).
- 4-5/9: ideal weight (ribs easily felt without pressure, waist visible from above).
- 6-7/9: overweight (ribs covered by fat layer, waist barely visible).
- 8-9/9: obese (ribs not palpable, rounded abdomen, no waist).
Do the test at home: run your fingertips along your dog's ribcage without pressing. Find them easily? Great. Have to push? They're overweight.
Most Common Causes
- Overfeeding: too much food or too many treats. Treats count — a medium dog biscuit is the caloric equivalent of a burger for a small dog.
- Neutering/spaying: reduces resting metabolic rate by 20-30 %; not adjusting portions leads to gradual weight gain.
- Sedentary lifestyle: less exercise = less energy expenditure.
- Endocrine disease: hypothyroidism and hyperadrenocorticism can cause weight gain — rule these out before attributing obesity to diet alone.
Weight Loss Plan
- Set the target weight with your vet. Losing 1-2 % of body weight per week is a safe pace.
- Calculate calories: 80 % of maintenance calories for the ideal weight. Formula: RER = 70 × (target_kg)^0.75 kcal.
- Weigh the food: measuring cups are inaccurate — use a kitchen scale.
- Eliminate or count extra treats: use portions of their daily ration as training rewards.
- Increase activity: 30 minutes of brisk walking per day has a dramatic positive effect, even in dogs with arthritis (with vet supervision).
- Monthly check-ins: weigh and adjust if loss is too fast (>2 %) or too slow.
Do Weight Management Foods Work?
Diet/light foods contain less fat and more fibre for greater satiety. They're a useful tool — but only if total calorie intake is controlled. Giving more light food "because it won't make them fat" completely defeats the purpose.