How Sterilisation Changes Your Cat's Metabolism
Spaying or neutering is one of the most important health decisions you can make for your cat. But it comes with a significant metabolic shift that many owners aren't prepared for: sterilised cats can require up to 25-30% fewer calories than intact cats of the same size and age.
Without dietary adjustment, weight gain is almost inevitable — and obesity in cats is a leading cause of diabetes, joint disease, and reduced lifespan.
Key Nutritional Changes to Make
1. Reduce Caloric Intake
After sterilisation, your cat's energy requirements drop. Switch to a food specifically formulated for sterilised cats, or carefully reduce portion sizes of their current food. Avoid free-feeding — scheduled meals give you better control.
2. Increase Protein, Reduce Fat
High-quality animal protein helps maintain lean muscle mass while the cat's activity level may decrease post-surgery. Look for foods where a named protein (duck, fish, rabbit) is the first ingredient — not cereals or by-products.
3. Support Urinary Health
Sterilised cats — especially males — are at higher risk for urinary tract issues. Adequate hydration is critical. Wet food, broths, or moisture-rich toppers can significantly increase water intake.
4. Monitor Weight Actively
Weigh your cat monthly for the first year post-sterilisation. A body condition score (BCS) of 4-5 out of 9 is ideal. If you notice rapid weight gain, consult your vet and adjust portions immediately.
What Ingredients to Avoid
- High carbohydrate fillers — corn, wheat, rice as primary ingredients
- Artificial preservatives — BHA, BHT, ethoxyquin
- Vague protein sources — "meat meal" or "animal derivatives"
- Excess plant-based protein — cats are obligate carnivores
The Right Time to Switch
Ideally, transition to a sterilised-specific diet within 2-4 weeks after the procedure, once your cat has fully recovered. Introduce the new food gradually over 7-10 days to avoid digestive upset.
Nobili Nutrition for Sterilised Cats
Our FELIS Nobili range for sterilised cats is built on a single, high-quality protein source with a carefully balanced caloric profile — supporting healthy weight, urinary function, and skin & coat health without compromise.
Born of nature. Refined by science.
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