The short answer
Indoor cats burn fewer calories than outdoor cats, so they need a lower-calorie, weight-conscious diet- like Naturo's Indoor Sterilised recipe. Outdoor cats are more active and can generally eat a standard adult recipe at the full feeding guide amount. Always weigh your cat and adjust portions to their body condition, not just their age.
Key takeaways
- Indoor cats are usually less active and often neutered, both of which lower their daily energy needs.
- Outdoor cats burn more energy roaming, climbing and hunting, so they typically need more food, calorie for calorie, than an indoor cat of the same weight.
- Naturo's Adult Cat Indoor Sterilised Light Chicken Pate is formulated with reduced calories for less active, neutered cats.
- Naturo's standard Adult Cat Pate range (chicken, turkey, salmon, tuna) suits more active outdoor cats.
- Fresh water matters as much as food- follow the "one bowl per cat, plus one" rule.
- Every cat is an individual, so use feeding guides as a starting point and check in with your vet if their weight changes.
Why does it matter whether my cat is indoor or outdoor?
Your cat's lifestyle changes how many calories they burn each day, and that should shape what and how much you feed them. UK Pet Food notes that the nutritional needs of any individual cat are affected by their lifestyle, and that an indoor cat and an outdoor cat will have genuinely different requirements, not just different preferences.
An indoor cat spends most of the day resting, grooming and having short bursts of play. An outdoor cat adds roaming, climbing, jumping and hunting into the mix, which all burns extra energy. Over a full day, that difference adds up- which is exactly why some recipes are formulated specifically with a lower calorie indoor cat in mind, and others are built for a more active lifestyle.
Neutering plays a role too. Most indoor cats are neutered, and neutering itself tends to reduce a cat's energy needs while sometimes increasing appetite. That combination- burning less, wanting more- is a common reason indoor cats gain weight if they're kept on a standard adult diet.
What should I feed an indoor cat?
An indoor, less active cat generally does best on a lower-calorie recipe designed with weight management in mind, alongside portion sizes that reflect their actual activity level rather than a generic "average cat" guide.
That means:
- Choose a recipe built for indoor or sterilised cats. Naturo's Adult Cat Indoor Sterilised Light Chicken Pate is formulated with fewer calories to help manage the weight of a less active cat, and includes Yucca extract to help with stool odour- a small but appreciated detail for indoor litter tray life.
- Weigh food rather than eyeballing it. Use a kitchen scale against the pack's feeding guide, then adjust up or down over a few weeks based on your cat's body condition.
- Split meals into smaller, more frequent portions. Cats naturally prefer several small meals a day rather than one or two large ones, which also helps keep an indoor cat engaged and less likely to overeat from boredom.
- Add enrichment, not just diet changes. Puzzle feeders and short bursts of play help offset the lower activity levels that come with indoor life, and can make mealtimes do double duty as exercise.
What should I feed an outdoor cat?
An outdoor cat with regular access to the garden or beyond usually needs more energy in their diet than an indoor cat of the same size, simply because they're moving more.
- A standard adult recipe is usually appropriate, such as Naturo's Adult Cat Pate range in chicken, turkey, salmon or tuna, fed at the amount recommended on the pack for your cat's weight.
- Keep an eye on weight through the seasons. Outdoor cats tend to be more active- and hungrier- in warmer months, and may need portions adjusted as their exercise levels change.
- Don't assume "outdoor" means "unlimited." Free access to the outdoors doesn't guarantee high activity for every cat; some older or less adventurous cats barely leave the garden. Base decisions on your own cat's behaviour and body condition, not the label alone.
- Factor in what they might be catching. A keen hunter may be topping up their diet outside, so watch for gradual weight gain even on a correctly portioned meal.
Is Naturo's indoor/light cat food suitable for my cat?
Naturo's Adult Cat Indoor Sterilised Light Chicken Pate is designed specifically for less active, typically neutered indoor cats, with a reduced-calorie recipe aimed at supporting a healthy weight. It's a good match if your cat spends most of their time indoors, has been neutered, or has started to put on weight on a standard adult diet.
It's less suited to a highly active outdoor cat, a kitten, or a cat who's already underweight, since those cats generally need more energy-dense food rather than less. If you're ever unsure which recipe fits your cat's current lifestyle, a quick chat with your vet- particularly at annual check-ups- is the easiest way to confirm you're on the right track.
How do I switch my cat between diets, or from indoor to outdoor lifestyle?
If your cat's lifestyle changes- say, an indoor cat is given outdoor access for the first time, or an ageing outdoor cat is becoming an indoor cat- transition their food gradually over 14 days, mixing increasing amounts of the new recipe with the old. This gives their digestive system time to adjust and makes it easier to spot any issues early.
Monitor their weight over the following month and adjust portions if you notice steady gain or loss. Speak to your vet if you're making this change for a health reason, such as reduced mobility or recovery from an injury.
Do I need to change water provision for indoor vs outdoor cats?
Yes- water matters just as much as food, regardless of lifestyle. Follow the "one bowl per cat, plus one extra" rule so there's always a spare water source available around the home, and keep bowls topped up with fresh water daily. This is especially important for indoor cats, who don't have access to outdoor water sources and rely entirely on what's provided at home.
This article is for general information and doesn't replace advice from your vet, who can assess your individual cat's weight, health and lifestyle.
