Joybuy Insights

Choosing fish cat food: a practical buying guide for adult cats

A cat that loves fish doesn’t automatically make choosing food in the shop any easier. Packets feature terms such as “with salmon”, “with tuna” or “ocean fish”, but the actual fish content can vary considerably. And not every fish product is suitable as a complete daily food.

The main pitfalls when choosing fish cat food are:

  • Mistaking an appealing fish flavour for a high fish content. “With tuna”, for example, may mean that tuna makes up only a small percentage of the recipe.
  • Using complementary food as a main meal. Soup and some snacks are designed to complement complete cat food.
  • Ignoring portion size. A large bag of dry food may look like good value, but it won’t always suit a small eater, a neutered cat or a household with several cats.
  • Treating marketing claims as proven results. Information about coat, weight or digestion comes from the brand. Consider it alongside the ingredients and feeding guidelines on the label.

What should you look for in fish cat food?

1. Check whether it’s complete or complementary food

For everyday meals, look for the words “complete cat food” or “complete food”. This means the product information states that the food is intended as a complete diet for the specified life stage. Also check that it’s suitable for adult cats.

A product such as Felix Delicious Fish Strips in Sauce is described as complete food for adult cats. Felix Soup Fish, on the other hand, is labelled as complementary food and is intended to be served alongside a balanced meal. So don’t use soup as your cat’s only food, even if they find the broth appealing.

2. Look beyond the fish flavour in the name

With tuna cat food, salmon cat food and cat food with ocean fish, the named fish isn’t necessarily the main ingredient. Check:

  • the ingredients list;
  • the stated fish content;
  • the analytical constituents, such as protein and fat;
  • the texture: mousse, sauce, jelly or chunks.

For example, several Felix and Whiskas varieties in this selection list 4% of the named fish species. That’s information you can verify and gives you a more realistic picture than the product name alone.

3. Choose a texture, pack size and portion to suit your household

Wet cat food with fish usually contains plenty of moisture and comes in portions such as 50, 80, 85 or 100 grams. Small trays or pouches are handy for cats that eat several small meals, and help reduce waste. A multipack with different flavours can be useful if your cat quickly gets tired of one variety.

Dry food for adult cats is easier to measure out and keeps for longer after opening. Always provide fresh drinking water alongside it. A formula for neutered cats may be worth considering if your cat has been neutered, but adjust the amount according to their weight and activity level, and follow the feeding guidelines on the pack. Weight management claims come from the brand, so check the fat content and portion instructions.

Our picks for different needs

Suitable for: Budget-conscious first-time buyers
Felix Original Premium Cat Food Fish 12×85g

Felix Original Premium Cat Food Fish 12×85g

Why it suits this need: The pack contains 12 portions of 85 grams, making it a manageable choice if you’d like to try different fish varieties without buying a large supply straight away.

How this product avoids the pitfall

It’s described as complete food for adult cats. The ingredients list fish and fish derivatives for each variety, so you don’t have to base your choice on the word “fish” in the product name alone.

Key benefits and features

12 individual portions, a jelly texture and a choice of fish combinations. According to the product information, the food also contains taurine and added vitamins and minerals.

Suitable for: Shoppers looking for premium quality
Ziwi PEAK CAT CANS Mackerel 85 g

Ziwi PEAK CAT CANS Mackerel 85 g

Why it suits this need: This tinned option is aimed at shoppers looking for a fish product with a detailed ingredients list and a small portion size.

How this product avoids the pitfall

The product information describes it as complete cat food and lists its analytical constituents: 14% protein, 11% fat and 71% moisture. That makes it easier to compare with other foods.

Key benefits and features

85 grams per tin, one named fish source in the ingredients list and clear storage instructions for after opening.

Suitable for: Specific needs and frequent use
Farmina N&D Ocean Neutered Cat Herring 5 kg

Farmina N&D Ocean Neutered Cat Herring 5 kg

Why it suits this need: The 5 kg pack is a good fit for households with an adult, neutered cat that regularly eats dry food.

How this product avoids the pitfall

According to the product information, it’s intended for neutered cats. The stated fat content of 11% and the feeding instructions offer more useful guidance than the label “for neutered cats” alone.

Key benefits and features

Herring is listed as a main ingredient, the product information describes the recipe as grain-free, and the pack contains 5 kg.

Suitable for: Cats that prefer soft textures
g'woon Cat Mousse with Tuna 85g

g'woon Cat Mousse with Tuna 85g

Why it suits this need: The soft mousse texture is a practical choice for cats that prefer not to eat chunky food or pieces.

How this product avoids the pitfall

The pack states that each portion is 85 grams and clearly identifies the tuna variety. Before feeding it every day, check the label to see whether it’s described as complete food.

Key benefits and features

Mousse texture, an 85-gram portion and stated nutritional values, including 8 grams of protein and 5 grams of fat per 100 grams.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety requirements.

Frequently asked questions about fish cat food

Is fish cat food suitable for everyday feeding?

It can be, provided the pack states that it’s complete food for adult cats. Also check the feeding guidelines, age category and ingredients. Complementary food, such as some soups, should be served alongside complete cat food.

Is wet or dry fish food better value?

That depends on the price per kilogram, the recommended daily portion and the moisture content. A large bag of dry food can be practical for everyday use, while wet food multipacks are handy for portion control and variety. Don’t compare just the price per pack; consider how much your cat needs each day too.

How should I store fish food after opening?

Store unopened food in a cool, dry place, following the label instructions. Opened wet food should generally be covered and kept in the fridge, then used within the stated period. Serve it at room temperature if the feeding instructions recommend this, and always provide fresh drinking water.