Kittenhood is a stage of massive physical and behavioral changes. Nutrition tailored to their specific developmental needs can help them grow from fragile young kittens to strong, healthy cats.

During the first months of life your kitten will go through an amazing transformation. ROYAL CANIN® Kitten formulas offers nutrition tailored to their unique needs at this vital time.

Kittenhood: An Amazing Transformation


A Sense of Sight

It takes up to four weeks for a kitten’s sight and connected behavior (spatial perception) to be fully developed.

Healthy Bones

In the first year of life your kitten's bones must grow to become four times stronger than concrete.

Extraordinary Growth

In the first six months of life a kitten will grow as much as a 10 year old adult child.

Immunity and Defense

In their first six months your kitten's immature immune system must help protect them from millions of germs.

Tripling Their Weight

At birth most kittens weigh around 100 grams. Within a week they will double that weight, and triple it within 21 days.

A Guide to Kittenhood

Kittenhood is a hugely rewarding time for pet owners, but it’s also a time of huge challenges and steep learning curves, for you and your pet. The information and advice in the following pages has been collected from Royal Canin veterinarians, nutritionists, and partners worldwide, to help you and your kitten have a healthy start in life together.

Preparing for Your Kitten

When you bring your kitten home for the first time, it’s a huge change for both of you. You can make the process much easier by making a few simple preparations ahead of the big day.

  • Get all the kitten essentials
  • Kitten-proof your home and garden
  • Find a local veterinarian
  • Choose a nutritionally complete kitten food
  • Make sure everyone in the home is prepared

Bringing Home Your Kitten

Bringing home and the first few weeks of owning a kitten, although exciting, can be challenging. By having the right tools and knowledge, you can make sure that this first experience with your new arrival is a positive one, for them and for you.

Feeding Your Kitten

A kitten’s diet plays a key role in their physical and social development. The right mix of nutrients in their food will help development and lay the foundations for a healthy life.

Kitten Growth Stages

Understanding the growth stages your kitten goes through will help you recognize the challenges they face, and how to take care of them. Ensuring they get the right balance of nutrients in their food is key for healthy development into adult life.


Birth - 3 weeks

When kittens are born they can barely move or hear, and their eyes are completely closed. At around 5 days old, they will begin to open their eyes. This is also the time when they start to gain between 10g to 30g each day.


4 - 8 weeks

By this time, smell is fully mature and hearing is well-developed. Kittens begin to develop adult sleeping patterns, motor abilities, and social interaction. Key social skills develop through interaction with litter-mates, and their mother.

Intense growth

2 - 4 months

At this stage, kittens begin to understand their position within the household and may start to form a number of social behaviors depending on their experiences and training.

Sustained Growth

4 months+

Your kitten will begin to develop 30 adult teeth. By eight months the kitten will have reached 80% of their adult weight. Depending on the breed, adulthood is reached between 12 to 15 months.

Understanding Your Kitten

Kitten Socialization and Play

Socialization should start as early as possible, to avoid any unwanted behaviors and help them develop into confident, even-tempered adult cats. Find out how you can socialize your kitten.

Kitten Training

It’s important to train your kitten to adopt the right behavior from an early age and learn the rules of sharing a home with other people and animals.

The Basics of Kitten Grooming

Ensuring your kitten is used to being handled from a young age will make grooming easier for the rest of their life. Each cat breed has unique grooming needs, and understanding that is key to maintaining your cat’s healthy coat.

Understanding Your Kitten’s Health

It’s important to understand your kitten’s routines and behavior, so you can quickly recognize the signs if something isn’t right. It’s also important to understand a few key milestones, such as vaccinations and booster injections.

Brought to You by Royal Canin