How to Safely Help Your Pet Lose Weight
Calculate a safe calorie reduction plan for overweight dogs and cats. Target weight, timeline, and daily food amount.
Safe Pet Weight Loss Rate
Dogs should lose 1-1.5% of body weight per week. Cats should lose 0.5-1% per week. Faster weight loss in cats can cause hepatic lipidosis (fatty liver disease), a life-threatening condition. A 70-lb dog targeting 60 lbs should take approximately 3-4 months. A 15-lb cat targeting 12 lbs should take 4-6 months. Patience is essential — crash diets are dangerous for pets.
How to Reduce Calories Safely
Feed for the target weight, not the current weight. Calculate the Resting Energy Requirement (RER) for the target weight and multiply by 0.8-1.0 for weight loss. Reduce treats to less than 10% of daily calories. Switch to a weight management formula (higher protein, higher fiber, lower calorie density). Measure food precisely with a measuring cup or kitchen scale — eyeballing leads to overfeeding.
The Association for Pet Obesity Prevention reports that 59% of dogs and 61% of cats in the US are overweight or obese. Excess weight shortens a dog's lifespan by 1.8-2.5 years and increases the risk of diabetes, arthritis, heart disease, and certain cancers. Weight management is the single most impactful health intervention for most pets.
