Best Indoor Cat Food 2026: 10 Bags Ranked, £1.64 to £13.59 per Kg

It takes the top spot on the per-kilo maths, not the shelf price. £26.00 for 7kg is £3.71 per kg, the lowest figure among the three bags here that actually print 'indoor' on the packaging — the Purina ONE Indoor four-pack runs to £6.51 per kg and the Royal Canin Indoor Long Hair bag to £13.59 per kg. On feedback it holds 4.6 from 611 ratings, and 80 of the 100 entries in its published rating breakdown are five stars.

The recipe is pitched at indoor and neutered cats, with yucca schidigera listed to help cut litter odour, and a crunchy pellet the listing links to teeth and gum health. The nutrient claim printed on the pack is 'low calorie', which sits with the weight-control angle rather than a high-protein one. In practice that suits a cat that stays inside and moves less than one with a garden to patrol.

That said, this is not a hairball recipe and nothing on the pack is grain-free. If your cat is long-haired or brings hair up regularly, one of the hairball-specific bags further down will do more for you. Worth noting too, the listing's own fields say 'Dog Breed Size: All' and 'Specific Uses: Urinary Tract Health' — auto-filled data, not a promise about your cat.

Second place goes to the most specific recipe on the list. It is aimed at sterilised, overweight or less active cats, and carries hairball control, heart care and weight control as its stated uses. £31.49 for 4kg is £7.87 per kg, roughly five times the £1.64 per kg you pay for the 10kg by Amazon bag, so you are buying targeting rather than volume. Crucially, it is one of only two bags here that says grain-free on the pack.

The formula leans on fibre for hairballs and supplemental taurine for heart support, with prebiotic fibre and probiotics for digestion. Protein is the point: high-protein, meat-rich, no fillers, no added sugar. In theory that combination suits a neutered indoor cat that has put on weight, since the listed calorie load is low and the fibre does double duty on hairballs and appetite.

At the same time, £7.87 per kg is not cheap, and 4kg is smaller than the £26.00 7kg Perfect Fit bag at a higher price — £5.49 more for three kilos less. If you feed two or three cats, the maths gets ugly fast. Also ignore the listing's 'Lockable' special feature and 'Dog Breed Size: Medium' field; neither tells you anything about what is in the bag.

This one ranks high on consistency: 4.8 from 468 ratings, with 86 of the 100 published rating entries at five stars. The price is middling. £19.52 for four 750g packs is 3kg, so £6.51 per kg — nearly three times the £2.43 per kg Whiskas 7kg bag, for a smaller total weight. However, the packing is the practical win: four sealed 750g packs stay fresher than one 7kg sack if your cat eats slowly.

The claims are brand research rather than independent tests — 24% less stool odour in 14 days, fibres said to carry twice as much hair from the stomach in 14 days, lactobacillus for natural defences and chicory for gut balance. Treat those as Purina's own numbers. As a dry cat food for indoor cats it is a digestive and hairball formula rather than a weight one, so do not expect the calorie control angle of the sterilised bags.

Here is the catch. This listing and the Coat and Hairball four-pack further down both print '1 in Dry Cat Food' in their best-seller rank. One badge cannot be true for both, so treat that line as marketing rather than a measurement. The listing also calls the container a 'Pouch' while describing dry kibble — another auto-filled field. As a result, if you want the biggest bag for your money, this is not it.

£15.00 for 3kg is £5.00 per kg — under half the £11.60 per kg of the 2kg Lily's Kitchen bag and well under the £13.59 per kg Royal Canin Indoor Long Hair. It also carries the third-largest review base on this list at 5,951 ratings, scoring 4.7, with 82 of 100 rating entries at five stars. That combination of per-kilo price and volume of feedback is why it lands fourth.

The mechanism is fibre, not marketing: insoluble fibre to bind swallowed hair and move it through the digestive system, plus dried beet pulp for intestinal function and prebiotics for gut flora. Protein is described as 88% animal protein out of total protein. The recipe is wheat-free, though the listing admits it is produced in a factory that handles wheat — read that twice if your cat reacts to wheat.

Even so, this is not a grain-free bag, and the published spread has 5 of 100 entries at one or three stars with none at two. It also targets hairballs rather than weight. If your cat is sterilised and gaining, a weight-control recipe will do more. Either way, at £5.00 per kg it is the cheapest hairball-specific bag here.

£18.99 for four 750g packs is 3kg, or £6.33 per kg. Meanwhile the Indoor Turkey four-pack costs £19.52 for the same 3kg, so this one is 53p cheaper at the till and 18p per kg lower. Its rating distribution is the tightest on the list: 89 of 100 published entries are five stars, giving 4.8 from 604 ratings.

The pitch is skin and coat first. Chicken is listed as the number one ingredient, with B-vitamins and zinc for skin, chicory as a prebiotic for gut balance, and the same fibre claim about carrying twice as much hair from the stomach in 14 days. That makes it a coat-and-hairball dry food rather than a weight formula, so it will not suit a sterilised cat that needs calorie control.

The catch is the listing's own data. It describes the item form as 'Pate', the container as a 'Tin' and the diet type as 'Raw' — for a four-pack of dry kibble. None of those fields match the product, which tells you how much of the spec sheet is auto-generated. And like the Indoor Turkey pack, it prints '1 in Dry Cat Food', a rank both listings cannot hold at once.

£16.35 for a 10kg bag is £1.64 per kg, the lowest figure here and 8.3 times cheaper per kilo than the £13.59 per kg Royal Canin bag. In cash terms it undercuts everything: the 2kg Royal Canin Indoor Long Hair bag costs £27.18, which is £10.83 more than this entire 10kg sack. It also holds 4.7 from 1,251 ratings.

The formula is deliberately plain: no artificial flavours, colours or preservatives, biotin and zinc for skin and coat, vitamin D for bones, natural prebiotics for digestion, and a stated complete and balanced profile developed by pet nutritionists and checked by vets. The flavour is tuna and herring rather than chicken, which matters if your cat turns its nose up at poultry. As a cheap indoor cat food by the kilo, nothing here comes close.

That said, it makes no indoor, hairball or sterilised claim at all — the targeted recipes sit further up this list. The rating spread is also the widest of the leading bags: 9 of 100 published entries sit at one or three stars, with none at two. If your cat has a sensitive stomach or a hairball problem, this is volume, not targeting.

£17.00 for 7kg works out at £2.43 per kg, the second-lowest figure on the list behind the £1.64 per kg by Amazon sack. It also has by far the biggest review base: 12,365 ratings at 4.8, with 86 of 100 rating entries at five stars, and it sits at number 4 in Dry Cat Food on its own listing. For a bulk indoor cat food for adult cats, the volume of feedback is the argument.

The kibble has a soft centre inside a crunchy shell, which the listing gives as the reason for the texture. The recipe uses chicken, carrots and peas, with vitamin A for vision and zinc for skin and coat, and states no added artificial colours or flavourings. Feeding guidance is 45-75g a day depending on the cat's size, which is useful if you want to work out how long 7kg actually lasts.

Worth noting, the listing's filters are odd: 'Breed Recommendation: Small Breeds' and 'Dog Breed Size: Small', on a cat food. It also makes no hairball claim and is not grain-free. If your cat is long-haired or a heavy hairball producer, the IAMS 3kg at £5.00 per kg addresses that directly for a comparable outlay.

This is a 2kg bag at £23.19, which is £11.60 per kg — 7.1 times the £1.64 per kg by Amazon sack and more than double the £5.00 per kg IAMS bag. What you get for it is disclosure: 65% fresh chicken and 5% chicken liver, a single-protein recipe, and a grain-free formulation with prebiotics and a stated balance of omega 3 and 6 for skin and coat.

As a grain-free indoor cat food it is aimed at indoor and outdoor cats alike, so this is not an indoor-specific formula — the positioning is ingredient quality instead. The brand is a B Corp and states 17+ years in pet nutrition with vet-approved recipes. In practice, that is what the extra £6.60 per kilo over the IAMS bag buys you: a shorter, named ingredient list.

However, the ratings are the weakest in the top ten. It scores 4.6 from 1,503 ratings, but 11 of the 100 published entries sit at one, two or three stars — the largest low-end share on this list. If your cat has done well on a chicken-and-cereal kibble for years, paying £11.60 per kg to change that is a gamble.

£27.18 for 2kg is £13.59 per kg, the highest figure on this list and 8.3 times the £1.64 per kg by Amazon bag. Put another way, this 2kg bag costs £10.83 more than a 10kg bag holding five times as much food. It scores 4.6 from 896 ratings, with 77 of 100 rating entries at five stars.

What justifies the price is specialisation. It is built for long-haired cats living indoors, aged 1 to 10, with hairball reduction, coat shine from borage and fish oil, and a stated reduction in faecal smell as the four headline claims. If you keep a Persian or a Maine Coon that produces hair constantly, that is a narrower brief than any other bag on this list.

Even so, £13.59 per kg is a lot for 2kg, and the allergen line lists wheat. If your cat is short-haired, the IAMS hairball bag at £5.00 per kg covers the same problem for less than half the per-kilo price. And if you feed more than one cat, 2kg will not last long, which means paying £13.59 per kg all over again.