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Wellness CORE Indoor Cat Food Review (2026)

Wellness CORE Indoor uses deboned chicken and turkey as the first two ingredients, with reduced fat for indoor cats who don't burn calories hunting. The high protein maintains muscle while the reduced calorie density prevents indoor-cat obesity.

8
Great
out of 10
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The full review

The Indoor Cat Problem

Indoor cats live 12-18 years but exercise dramatically less than outdoor cats. Without caloric adjustment, they gain 0.5-1 lb per year — reaching obesity by year 5-8. CORE Indoor cuts fat by 20% while maintaining protein, preserving the muscle mass that determines long-term metabolic health.

Protein Quality

Deboned chicken and turkey appear as the first two ingredients. Chicken meal follows — concentrated protein source. Crude protein hits 36% — well above the AAFCO minimum of 26% for adults. This protein level supports lean body mass maintenance even in sedentary indoor cats.

Quick verdict

What we love
  • ✓High protein preserves muscle mass during weight management
  • ✓Grain-free for cats with grain sensitivities
  • ✓Reduced fat for indoor calorie management
Heads up
  • ✕Premium price
  • ✕Grain-free without specific need — grain-inclusive is equally appropriate for most cats
✓ Buy it if…

Indoor cats over 1 year old, especially those trending heavy or less active.

✕ Skip it if…

Outdoor cats with high activity levels who need higher caloric density.

Tucker's bottom line

The best indoor cat formula for weight management. Worth the premium for indoor cats trending heavy.

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Common questions

How much should I feed an indoor cat?
The bag suggests amounts by weight. For most 8-12 lb adult cats: 1/3 to 1/2 cup twice daily. Adjust based on body condition score — you should feel ribs but not see them.
Can kittens eat this?
No — CORE Indoor is formulated for adult maintenance. Kittens need the higher calorie density of a growth formula.

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This information is educational and not veterinary advice. Consult your veterinarian for your pet's individual health decisions.