Changing your cat's diet—what you need to know

Whether due to age or medical reasons, at certain points in your cat's life, a change in diet is necessary. However, if you want to change your cat's food, there are a few rules you should follow to make the transition as comfortable as possible for your pet. For example, you should introduce your cat to new food gradually to avoid possible digestive problems. Follow our simple seven-day guide to ensure that your cat's transition to a new diet is safe and gentle.

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Why should you change your cat's diet? Changing your cat's diet: Age-appropriate food Why is it important to change a cat's diet carefully? Patience is required How to change your cat's diet Wet and dry food: Mixed feeding is preferable Changing cat food: Possible digestive problems Change in diet: Cat won't eat Take care of your cat
Why should you change your cat's diet?

There can be various reasons for changing your cat's diet, such as:

  • Age: Your kitten is old enough and can be switched to adult cat food.
  • Health problems: Your pet's health requirements have changed and it needs special food, for example if your cat is overweight or underweight. Food allergies, intolerances, or other illnesses such as gastrointestinal problems or liver disease can also be reasons for changing your cat's diet.
  • Neutering: After neutering, hormones change and so does metabolism. The cat's energy requirements decrease. A special diet may then be advisable.

Nowadays, balanced complete foods can be fed throughout a cat's life without the risk of nutritional deficiencies. It is important that they are adapted to the cat's age, health, and lifestyle.

Changing your cat's diet: Age-appropriate food

Cats need appropriate food depending on their age, as kittens have different needs to older cats. Kittens are still growing and therefore have different nutritional requirements. Kitten food can therefore be given until the end of the growth phase.

Once your pet reaches one year of age, you can start feeding it food for adult cats. 

For particularly large cat breeds (such as Maine Coons), the growth phase lasts longer, which is why the change in diet for these breeds takes place later than for smaller animals.

When your cat reaches senior age, you should change its diet again, as its nutritional requirements will change once more. Special food for older cats is tailored precisely to these needs. Your pet is considered an older cat from the age of seven, senior age begins at eleven, and from 15 your cat is considered a super senior.

Why is it important to change a cat's diet carefully?

Early experiences with a particular type of food play a major role in your kitten's later preferences. For this reason, you need to find out what food the kitten was fed before it came to you. It will settle in more easily if it is given food it is familiar with. Similarly, any change in your cat's diet should only be made gradually at every stage of its life.

Patience is required

Some cats are suspicious of new food. This avoidance behavior is known as neophobia, or fear of new things. It is believed that this behavior is a kind of protection against eating poisonous or spoiled food. For this reason, it is better to introduce new food gradually and reduce potential stress factors so that your cat does not develop an aversion to the new pet food.

How to change your cat's diet

It is best to gradually transition your cat to a new food over at least a week. This will help reduce digestive problems, fear of new things, and other issues.

Start by mixing a small amount of the new food with the old food, and gradually increase the ratio until your cat has completely switched to the new food.

Days 1 and 2: 75% previous food + 25% new food

Days 3 and 4: 50% previous food + 50% new food

Days 5 and 6: 25% previous food + 75% new food

Day 7: 100% new food

Maintain your cat's feeding routines, feeding times, and feeding location to minimize the change. This will help your cat feel comfortable during the transition to the new food.

Wet and dry food: Mixed feeding is preferable

A mixed diet of dry and wet food is particularly advisable for cats. Your feline friend loves variety and will quickly become bored if you only give them wet or dry food. A mixed diet also provides your pet with optimal nutrients and sufficient fluids.

However, if your cat refuses to eat a certain texture, you should bear the following in mind when switching from wet to dry food:

  • Your cat will need to chew dry food for longer and will also need more water.
  • It will eat smaller portions because dry food is much more energy-rich than wet food. The amount of food is therefore reduced in contrast to wet food.

To get your cat used to dry food, you can soak it in the previous wet food beforehand. Gradually, the amount of dry food can be increased with each feeding.

Changing cat food: Possible digestive problems

Most high-quality cat food is well tolerated. However, your pet may experience occasional digestive problems at the beginning. 

Diarrhea and vomiting are among the most common complaints. This is because the digestive system first has to get used to the new composition of the food. If the problems persist after two to three days, you should consult your veterinarian as a precaution.

Digestive problems often arise when the switch to a new food happens too quickly. A slower change of food can help minimize the risk of such problems. For example, you can maintain the mixing ratio for longer and thus delay the transition phase. 

But be careful: digestive problems can of course also have other health causes. If in doubt, you should always have the symptoms checked by your veterinarian.

Change in diet: Cat won't eat

If you want to change your cat's food and your furry friend won't accept the new food, there are a few tricks that can help your pet get used to it and make the transition easier.

For example, you can warm the food slightly to intensify the smell. This will encourage your cat to eat. Did you know that cats have less of a sense of taste than humans? However, they have a much more sensitive nose, so a strong smell stimulates their appetite.

If your cat continues to refuse the new food, you should pause the transition and consult your veterinarian for advice. Cats' livers react very strongly to food refusal. Ignoring this sign can have serious health consequences for your pet.

Cat in front of a full food bowl
Take care of your cat

Pay close attention to your cat's behavior after she has completely switched to a new food. This will help you determine how well she is responding to the change. The best diet will be reflected in your cat's appearance, weight, and stool consistency.