Your cat might act like royalty, but their dietary needs are surprisingly straightforward. Cats are built to eat meat. That single fact shapes everything about feline nutrition, from the nutrients they require to how much water they need each day.

Yet with so many food options lining supermarket shelves, it is easy to feel lost. This guide covers the cat nutrition basics that actually matter — so you can feed your cat properly and stop second-guessing every label.

Why Cat Nutrition Basics Start With Meat

Cats are obligate carnivores. Unlike dogs, they cannot thrive on a plant-based diet. Their bodies are designed to extract nutrients from animal tissue. This is not an opinion; it is biology.

Two amino acids come up repeatedly in feline nutrition, and for good reason:

• Taurine — essential for heart function, vision, and reproduction. Cats cannot produce enough on their own, so it must come from food.
• Arginine — critical for removing ammonia from the body. Even a single meal without arginine can cause serious illness.

Both are found naturally in meat and fish. Plant sources rarely provide adequate levels. This is why any complete cat food sold in the UK must meet strict FEDIAF guidelines for these nutrients. Look for the word “complete” on the packaging. It signals the food has been formulated to meet all of your cat’s nutritional requirements without any supplements.

A “complementary” food, by contrast, is designed as a topper or treat. It should never be the sole diet.

Cat Nutrition Basics: Getting Calories and Portions Right

One of the most common feeding mistakes is simply giving too much. Obesity affects a significant number of UK cats, and it shortens lives. Understanding daily calorie needs is a core part of cat nutrition basics.

Several factors influence how many calories your cat needs each day:

• Body weight — a 4 kg cat needs far fewer calories than a 6 kg cat.
• Age — kittens burn through energy quickly; senior cats generally need less.
• Neuter status — neutered cats often require around 20% fewer calories.
• Activity level — an indoor-only cat uses less energy than one with outdoor access.

As a rough starting point, most adult indoor cats need somewhere between 180 and 250 calories per day. However, this range varies widely. Your vet can help pinpoint the right figure based on your cat’s body condition score.

Weigh food portions rather than guessing. A kitchen scale is far more reliable than the “scoop and hope” method. Many owners are surprised at how small a proper portion actually looks.

Wet vs Dry Food: A Cat Nutrition Guide to Hydration

Hydration deserves more attention than it gets. Cats evolved in arid environments and have a naturally low thirst drive. They were designed to get most of their moisture from prey — which is roughly 70% water.

This is where the wet vs dry debate becomes relevant.

Why Wet Food Supports Feline Nutrition

Wet food typically contains 75–80% moisture. For cats who barely touch their water bowl, this can make a real difference to urinary tract health and kidney function. Many UK vets recommend at least some wet food in the daily diet for precisely this reason.

Where Dry Food Still Has a Place

Dry food is convenient, stores easily, and is often more affordable per serving. It also suits cats who prefer to graze throughout the day. The key is ensuring your cat drinks enough water alongside it.

Mixed Feeding as a Practical Approach

A combination of wet and dry food — sometimes called mixed feeding — is widely considered a sensible middle ground. You get the hydration benefits of wet food and the convenience of kibble. Just be sure to account for total daily calories across both types.

Speaking of hydration, litter habits often reflect how well your cat is drinking. A well-hydrated cat produces more urine, which means a litter that controls moisture and odour matters. Pacha Litter is designed to handle this effectively, with strong odour control and excellent absorbency — so your cat’s hydration improvements do not come at the cost of a smelly tray.

Do Cats Need Carbohydrates? Cat Nutrition Basics Explained

This question appears constantly in UK pet forums. The short answer: cats have no minimum dietary requirement for carbohydrates. Their metabolism is geared towards deriving energy from protein and fat, not starches.

That said, a moderate amount of carbohydrate in commercial cat food is not inherently harmful. Kibble needs some starch to hold its shape during manufacturing. The issue arises when carbohydrate content creeps too high, displacing the protein your cat genuinely needs.

Here is a balanced way to think about it:

• Check the protein content first. It should be the dominant ingredient by weight.
• Look at the ingredient list. Named meat sources (such as chicken, salmon, or turkey) near the top are a good sign.
• Avoid foods where cereals or grain derivatives are listed as the primary ingredient.

Carbohydrates are not the enemy. But they should not be the foundation of a cat’s diet either.

Life-Stage Feeding: Cat Nutrition Basics From Kitten to Senior

A cat’s nutritional needs shift dramatically over its lifetime. What works for a kitten will not suit a twelve-year-old with stiff joints.

Kittens (Up to 12 Months)

Kittens grow at an astonishing rate. They need energy-dense food with high levels of protein, fat, and essential nutrients like calcium and DHA for brain development. Most kitten foods are formulated to meet these demands. Feed small, frequent meals — three to four times daily is ideal.

Adult Cats (1–7 Years)

Once growth slows, the focus shifts to weight maintenance. An adult-formula complete food, portioned correctly, is usually all that is needed. This is when monitoring calories becomes especially important, particularly for neutered indoor cats.

Senior Cats (7+ Years)

Older cats may need food that is easier to digest. Some benefit from higher protein to maintain muscle mass, while others require adjusted phosphorus levels to support ageing kidneys. Joint-support ingredients like glucosamine are sometimes included in senior recipes.

At every life stage, regular vet check-ups help ensure the diet still matches your cat’s changing body. Nutritional needs are not static, and small adjustments can make a measurable difference to wellbeing.

As your cat’s diet evolves, so does what ends up in their litter tray. Dietary shifts can affect stool consistency and odour. A high-quality litter like Pacha Litter keeps the tray fresh regardless of what life stage your cat has reached — giving you one less thing to worry about.

Bringing Cat Nutrition Basics Together

Feeding your cat well does not require a degree in biochemistry. The fundamentals are clear: prioritise animal-based protein, choose a complete food, watch portions, keep your cat hydrated, and adjust as they age.

If you take one thing from this cat nutrition guide, let it be this — read the label, weigh the food, and talk to your vet. Those three habits alone put you ahead of most cat owners.

Good nutrition shows up everywhere: in a glossy coat, bright eyes, steady energy, and yes — even in the litter tray. When your cat eats well, everything works better. And with Pacha Litter handling the other end of the equation, you and your cat can both enjoy a cleaner, healthier home.