Best Grain-Free Cat Food for Indoor Cats (UK Guide)
Indoor cats burn roughly a third fewer calories than roaming cats, so their food needs to be nutrient-dense but calorie-moderate — or the middle-age spread arrives early.
What indoor cats actually need different
- Controlled calories: around 40–50 kcal per kg bodyweight daily for a neutered indoor cat.
- Hairball support: insoluble fibre or malt-based aids help swallowed fur pass through.
- Higher moisture: indoor, dry-fed cats are the classic dehydration group — wet food at least once daily.
- Litter-friendly digestion: consistent, firm stools make shared-house litter trays bearable.
Portion reality check
Weigh the daily ration on a kitchen scale rather than trusting cups or ‘a handful’. Most indoor cats need strikingly little dry food — often 40–55 g daily — and owners routinely double it.
Frequently Asked Questions
Do indoor cats need special food?
Not strictly, but indoor formulas (or careful portions of standard food) prevent the gradual weight gain that shortens indoor cats’ lives. The feeding amount matters more than the branding.
How much should I feed my indoor cat?
Start at 45 kcal per kg of ideal bodyweight daily, split into 2+ meals, and adjust monthly by feel — ribs palpable, visible waist from above. An indoor 4 kg cat typically eats 180–200 kcal a day.
What helps indoor cats with hairballs?
Fibre-topped recipes, daily brushing, and more moisture. Persistent hairballs despite this warrant a vet check for underlying gut motility issues.
Is free-feeding dry food bad for indoor cats?
Usually yes — grazing indoors leads to slow, steady gain. Measured meals with puzzle feeders keep cats lean and mentally occupied.
