Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

When to Switch From Kitten Food to Cat Food? Vet-Reviewed Facts & FAQ

Share

little kitten sitting by a bowl of milk

Cats, like people, have different nutritional and dietary requirements at different stages of life. Kittens have seemingly boundless energy, and they need to consume the nutrients to match this. When they cross into adulthood, they will be burning off a lot less energy but will need to sustain a healthy weight and a nutritional diet. As a senior, your cat will be moving around much less and will need to consume different amounts of food. But these are only very general dietary requirements, and your cat has more specific vitamin and mineral requirements depending on their age.

Read on for more information on just when to switch from kitten to adult cat food.

divider 3 paws

When Does a Kitten Become a Cat?

Kittens are young, playful, and still learning the ropes. During this time, they are very active for a portion of the day but will also need to sleep for long periods. They will be using their brain to learn new behaviors and adopt new skills.

Young kittens are also forging new relationships with their humans and other animals. Once a kitten reaches approximately 6 months of age, they are considered adolescent, so a kitten aged between 6 months and 12 months is more like a teenage child. They will have started to develop most of their skills, they should have a good understanding of what is right and wrong, but they will still have a lot of pent up energy to burn off.

Once they reach 12 months old, a kitten is considered a fully-grown cat, although giant breeds may not have fully developed until they are 18 months old. For a normal-sized house cat, you will be looking to transition from kitten food to adult cat food at 12 months.

cat and kitten playing outdoors
Image Credit: Volodymyr Plysiuk, Shutterstock

divider 3 paws

What Is in Kitten Food?

Kitten food is designed for very young cats, pregnant cats, and nursing cats. Good quality kitten food usually contains at least 55%–60% protein and at least 22%–25% fat, with more of these not being an issue, as kittens need the nutrients and energy to grow and develop, and pregnant or lactating cats need the surplus as well. It has a high fat density, which means that it has a lot of calories in a small amount of food. This caloric density is the reason that adult cats put on a lot of extra weight if they eat kitten food. This is common in multi-cat households where the adult cat eats the kitten’s food, and it should be prevented.

As well as having a higher calorie content, kitten food tends to be packed with omega-3 fatty acids, calcium, and phosphorus. These nutrients help with the development of everything from a healthy coat and skin to strong bones and a healthy brain.

little ginger kitten eats wet food
Image Credit: Elizabett, Shutterstock

Can Kittens Eat Adult Cat Food?

It is not uncommon to hear the myth that kitten food is nothing more than a marketing ploy; the same food as adult cat food but wrapped up in kitten packaging and sold for a higher price.

This isn’t true. Kitten food contains different amounts of nutrients that will help your kitten develop properly and healthily. But can they eat adult food?

Some adult foods are suitable for kittens. Check the packaging, and if it says it is suitable for all life stages, it can make good kitten food. It is considered nutritionally sound for seniors, adults, and kittens.

Otherwise, you should avoid feeding adult cat food to kittens until they reach a suitable age.

While many kittens grow out of the essential supplies you buy for them when they are young, finding a product that can last them a lifetime is like hitting the cat jackpot - which is why we love the Hepper NomNom Cat Bowl so much. Its unique cat-inspired design offers dual, stainless steel bowls that are wide and shallow, crucial for neck support when kittens are little and benefits mature cats by offering whisker relief. If you want to learn more about what other advantages the NomNom will provide for your growing kitten, click here.

Hepper NomNom - Spill Proof Elevated Cat Bowl
  • NO MESS - The 360° tray on this cat food and water bowl set has a raised design to catch and...
  • WHISKER FRIENDLY - Shallow and wide metal containers with flat bottoms ensure your kitty can enjoy...
  • CHEW-SAFE MATERIALS - Kittens and cats love chewing on silicone and soft rubber - but it's a choking...

At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

divider 3 paws

How to Choose Adult Cat Food

There is a huge range of adult cat foods on the market, including dry and wet food. You can even find some freeze-dried raw food ingredients.

Wet food hydrates your cat and provides them with the nutritional content they need. It can be more appealing, too, but it is more expensive, will only stay fresh for a few hours once in the bowl, and has a shorter shelf life than dry food.

Dry food will last longer in the cupboard and the bowl. It is less expensive than wet food, and it can contain all of the nutritional requirements needed. It also smells less and causes less of a mess around the food bowl.

You can also combine dry and wet foods. If you do this, ensure that you only feed half of the recommended amount of each, per day, otherwise, you will be overfeeding and your cat will put on extra weight.

Whatever type of food you feed your cat, remember that cats are obligate carnivores. They would eat meat in the wild, and this is where the majority of their protein should come from. Buy animal-protein-based foods and ask a veterinarian if you need expert advice on the proper food for your cat.

How to Transition From Kitten to Cat Food

Moving from kitten to cat food is an important stage in your cat’s life. When changing food for any reason, you should make the transition gradually. This will help prevent stomach upsets and gastrointestinal complaints. Make the transition over two weeks.

Start with about 90% kitten food and 10% adult food. Replace another 10-20% every second day, taking a total of one or two weeks to fully transition. This gives your kitten time to adjust to the new flavors and textures and its digestive system a chance to adapt to the change. From this time, your kitten must be used to eating only two to three meals a day. Avoid getting your kittens into the habit of free feeding. Most adult cats don’t self-regulate very well, so giving your cat two or three portioned-out meals a day can help avoid obesity.

divider 3 paws

Moving from Kitten to Adult Cat Food

Changing from kitten to adult cat food is a major milestone in your pet’s life. It means that they should have settled down enough that they do not need the extra calories and additional energy in their diet. Adult food provides a more suitable calorie ratio and contains life-stage-appropriate vitamins and minerals for your cat. Make the move gradually from kitten to cat food, typically at the age of about 12 months, and choose a good quality food that includes meat-based proteins.


Featured Image Credit: Impact Photography, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Weird Cat Behaviors That Actually Make Perfect Sense

We have been sharing our lives with cats for thousands of years, yet we still find ourselves genuinely stumped by what they get...

The Dream of Talking to Cats Just Got Closer to Becoming a Reality

If you’ve ever wished your cat could simply tell you what they wanted, you’re not alone. From the meow that wakes you before...

Kizzy: The Feline Princess With a Purpose

We were first introduced to Miss Kizzy after she won a licky-treat challenge hosted by Professor Fluffovich, our resident feline research specialist. While...

Chatting With Sally About Mission Meow & Helping Cat Rescue Organizations Collaborate | Chatty Cattys, Episode 24

In this episode of Catster’s podcast, Chatty Cattys, Nicole and Dr. Karyn sit down with Sally Williams, the founder of Mission Meow, for...

More related

My Cat Killed a Bat, What Do I Do Now? Vet-Approved Safety Info

Cats are nocturnal creatures, and so are bats. It’s no surprise that your cat brought you a midnight snack. However, killing a bat...

Can Cats Drink Wine? Vet-Verified Safety Information

Many cat lovers appreciate a nice glass of wine in the evening to help them relax. Not only is it a crisp and...

Can Cats Eat Fish Bones? Vet-Reviewed Feeding Facts

Cats are obligate carnivores. In the wild, they eat a good variety of small prey, depending on availability, and they make the most...

Elf Cat Breed Info: Pictures, Temperament & Traits

If you’re looking for a rare cat like nothing you’ve ever seen, prepare to be captivated by the Elf cat! These adorable little...

Keep reading

Why Is My Cat Missing the Litter Box? 11 Vet Reviewed Reasons & Advice

If your feline is missing the litter box, it can quickly become very annoying. You’ll have to clean around the litter box as well as clean out the litter box. It may even seem like your cat is missing the...

maine coone in litter box

Why Do Cats Stare? Feline Behavior Explained (Vet-Reviewed Info)

If you’ve ever watched your cat mesmerized for minutes or longer by a seemingly random object, you’re not alone. Since time immemorial, humans have been fascinated by cat staring. But why do they stare in the first place? The answer...

Tortoiseshell cat starring at a window

Can Cats Eat Beggin’ Strips? Vet Reviewed Health Risks & FAQ

Beggin’ Strips are popular dog treats and have a strong, meaty odor, which may make your cat seek them out. However, Beggin’ Strips are not healthy for cats and neither are most dog treats. Dog treats, like Beggin’ Strips, are...

Can Cats Eat Beggin’ Strips

Mouth Cancer in Cats: Vet-Reviewed Signs & When to Euthanize

One of the most difficult parts of pet ownership is making end-of-life decisions. Knowing when to euthanize a beloved animal companion is never easy, and there’s no right answer for every situation. Personally, I’ve had to make that choice three...

cat mouth check by vet

Feline Cognitive Decline: Vet-Reviewed Signs, Diagnosis & Treatment

Watching your cat age can be devastating. It’s even harder when you notice behavioral changes taking place that your cat doesn’t appear to have any understanding of or control over. Feline cognitive dysfunction is a common condition that occurs in...

male veterinarian with stethoscope holding striped cat

Why Do People Hate Cats? What Science Tells Us (Vet-Reviewed)

Cat lovers think that their favorite animals can generally do no wrong. People who adore felines often find them loving, attentive, playful, and adaptable. They love cats’ independence and sweet companionship and feel honored that such self-sufficient and intelligent creatures...

red flame point siamese in the grass

Does Catnip Help a Cat in Heat? Vet-Reviewed Facts & FAQ

There are a lot of old wives’ tales out there about how to deal with a cat in heat. One of the most traditional solutions is giving catnip. But does it actually work? Catnip is a member of the mint...

cat-eating-catnip

Can Cats Fall in Love with Each Other or Humans? Vet-Reviewed Feline Feelings

In all honesty, we don’t know how cats feel. We can’t ask them if they’re in love, and no scientific test can measure what a cat is feeling. Also, the definition of love is hard to agree upon! We do...

cat looking man's chin

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.