How do I know if my cat is overweight?

Use the Body Condition Score (BCS) system: you should be able to feel your cat's ribs with light pressure but not see them. Viewed from above, your cat should have a visible waist. From the side, the belly should tuck up. A BCS of 6–7 out of 9 indicates overweight; 8–9 indicates obesity.

How many calories does a cat need per day?

An average indoor cat needs about 20 calories per pound of ideal body weight. A 10-pound cat needs approximately 200 calories daily. Active or outdoor cats may need 25–30 calories per pound. Your veterinarian can calculate your cat's specific Resting Energy Requirement (RER).

Is free-feeding bad for cats?

Free-feeding (leaving food out all day) is a leading cause of feline obesity because cats may eat out of boredom rather than hunger. Measured meal feeding — typically two meals per day — gives you control over calorie intake and helps you notice appetite changes early.

How fast should a cat lose weight?

Safe weight loss for cats is 1–2% of body weight per week. A 15-pound cat should lose no more than 0.15–0.3 pounds per week. Rapid weight loss causes hepatic lipidosis (fatty liver disease), which can be fatal. Always work with your veterinarian on a weight loss plan.

Do indoor cats gain weight easier?

Yes. Indoor cats are more sedentary and prone to boredom-eating. They need environmental enrichment, interactive play sessions (15+ minutes twice daily), and measured feeding to maintain healthy weight. Puzzle feeders also help slow eating and provide mental stimulation.

Cat Weight Management: BCS, Calories & Safe Plans

61% of cats in the United States are classified as overweight or obese according to the Association for Pet Obesity Prevention, making it the most common nutritional disorder in companion animals. Excess weight increases a cat's risk of diabetes mellitus by 4×, significantly accelerates osteoarthritis, and is linked to urinary tract disease, hepatic lipidosis, and reduced lifespan.

How Do You Assess Your Cat's Body Condition?

The Body Condition Score (BCS) is a 9-point scale used by veterinarians worldwide. An ideal score is 4–5 out of 9:

Ribs — Easily felt with light pressure but not visible
Waist — Visible when viewed from above
Belly tuck — Abdomen tucks up when viewed from the side

How Many Calories Does Your Cat Need?

Cat Type	Calories/lb/day	10-lb Cat Example
Indoor, neutered	20 cal/lb	~200 cal/day
Active/outdoor	25–30 cal/lb	~250–300 cal/day
Weight loss	15–18 cal/lb	~150–180 cal/day

What Are the Risks of Rapid Weight Loss in Cats?

Hepatic lipidosis — Fat mobilizes to the liver during rapid weight loss, potentially causing fatal liver failure
Muscle loss — Too-aggressive calorie restriction burns muscle instead of fat
Nutrient deficiencies — Severely restricted diets may lack essential amino acids like taurine

Safe weight loss is 1–2% of body weight per week. Always work with your veterinarian to create a supervised weight loss plan.

Recommended Product: Automatic Cat Feeder

Maintain Consistent Portions with an Automatic Feeder

Automatic feeders help maintain consistent feeding schedules and portion control — critical for weight management. Programmable models allow you to schedule multiple meals daily, preventing overeating and boredom-based grazing.