Last Updated: 25/05/2026
Start of Life Nutrition: How to Feed Your Puppy or Kitten for Healthy Growth
What should you feed a new puppy or kitten? This vet written guide explains how start-of-life nutrition supports a developing immune system, brain and digestion, why breed and size shape feeding choices, when to transition to adult food, and how to combine wet and dry food.
Author: Dr Olivia Clarke BSc BVMS MANZCVS (Unusual Pets, Avian)
Reading Time: 5 minutes - short read
Bringing home a new puppy or kitten is one of life’s most exciting milestones. Amidst the cuddles, playtime, and toilet training, one of the most important decisions you will make for them is what goes into their bowl. The nutrition they receive during puppy or kittenhood sets the foundation for their health for the rest of their adult life.
Early Life Nutrition: Supporting Growth, Immunity, and Brain Development
Because early development is so vital, high quality nutrition, validated by science, is one of the most important ways you can support your puppy or kitten's health. That’s why vets recommend Royal Canin. With over 55 years of scientific research developed alongside veterinarians and global breeders, Royal Canin has perfected the precise nutritional profiles growing pets need.
Growing pets are undergoing rapid, complex changes that require specific nutritional support.
Here are the ways Royal Canin Puppy and Kitten foods support your furry friend:
1. Helping a Naive Immune System
When puppies and kittens are born, they receive antibodies from their mother’s milk (colostrum). However, as they are weaned onto solid food, these maternal antibodies gradually decrease, while their own immune system is still too immature to fully protect them. During this vulnerable window nutrition can help to support their developing immune system.
Royal Canin’s puppy and kitten recipes are fortified with a scientifically proven complex of antioxidants, including vitamin E and vitamin C to help support their natural defences during this crucial time.
2. Fueling Brain Development and Vision
The first few months are a rapid learning phase for your pet as they explore their new world and begin training. Diets rich in Omega-3 fatty acids, specifically DHA, are scientifically proven to support healthy brain development and vision. That’s why DHA is a key ingredient in all Royal Canin puppy and kitten diets.
3. Nurturing a Developing Digestive System
Puppies and kittens have notoriously sensitive stomachs. Their digestive tracts are still developing, which is why sudden diet changes or low-quality ingredients often lead to loose stools. Royal Canin foods utilise highly digestible proteins and a balanced blend of prebiotics to support a healthy gut microbiome and promote optimal stool quality.
Remember whenever changing your pets diet to do so gradually over 7-10 days. You can learn more about this in our vet article.
Tailored To Your Pet: Why Breed and Size Matter
When it comes to healthy growth, a one size fits all approach doesn't work. A tiny Chihuahua puppy has vastly different nutritional needs and developmental milestones than a growing Labrador. Certain breeds also have certain requirements for example a Maine Coon kitten needs diet for hairball control whereas Persian kittens need a specially shaped kibble that their shorter jaws can easily grasp and chew.
- Small and Medium Puppies: Small breed puppies like Chihuahuas and Dachshunds grow very quickly, reaching adulthood by 10 months. They require highly energy-dense food to fuel this rapid growth in a small kibble size. Medium breeds need a balance of energy and tailored calcium-to-phosphorus ratios to support steady skeletal development.
- Large Breed Puppies: Large breeds like labradors and golden retrievers take much longer to grow (up to 15 months) and are prone to joint issues. A breed-specific diet like Royal Canin Labrador Retriever Puppy strictly controls calorie and fat intake to prevent them from growing too quickly, which protects their developing joints and bones.
- Mixed Feeding for Kittens: Feeding a combination of Royal Canin Kitten Dry and Kitten Gravy pouches is highly recommended. Not only does the wet food provide essential hydration to protect their urinary and bowel health, but introducing different textures early on helps prevent them from becoming fussy eaters later in life!
- Breed-Specific Kitten Diets: Different breeds have different physical traits. For example, the Royal Canin Persian Kitten diet features a specially designed "moon-shaped" kibble that is adapted in size and texture to make it easier for their unique, broad jaw to pick up and chew, while supporting their muscular build.
Food to Fuel a Lifetime of Adventures Together
Navigating the first year with your new puppy or kitten is a rewarding journey, and providing the right nutrition doesn't have to be complicated. By choosing a science-backed, tailored diet that supports their developing immune system, brain, and digestion, you can take the guesswork out of mealtime. Formulas developed by veterinary experts, like those from Royal Canin, ensure that your pet's unique needs are met, whether you have a bouncy Chihuahua puppy or a majestic Maine Coon kitten. Ultimately, investing in high-quality early life nutrition gives your new furry family member the strongest possible foundation for a long, healthy, and happy adult life.
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Our experts continually monitor the health and wellness space and we update our articles when new information becomes available.
Mon May 25 2026
Written by Dr Olivia Clarke BSc BVMS MANZCVS (Unusual Pets, Avian)Dr Olivia Clarke BSc BVMS MANZCVS (Unusual Pets, Avian)
Veterinarian
Dr Olivia graduated from Murdoch University in 2015 and worked in Western Australia before moving to Sydney to work in specialist practice as an avian and exotics veterinarian. Olivia has thoroughly enjoyed the diversity of species and interesting cases in her time as an exotics veterinarian. She has a particular soft spot for rabbits and thoroughly enjoys all aspects of rabbit medicine and surgery. She also has many years of experience working with dogs and cats as well as an array of wildlife.
