Feeding your cat properly is critical during pregnancy and nursing. Malnutrition can result in low birth weight of the kittens and put them at risk for several health conditions resulting in a reduced survival rate.1 The goal is optimal nourishment for both the mother and her kittens. Specifically, here are nutritional priorities:

  1. Increased energy from calories for the growth of kittens and milk production for the mother
  2. Increased protein for growth and development of the kittens
  3. Increased fat to meet the high demand for calories of the mother
  4. Increased calcium and phosphorus for bone growth of kittens and milk production of their mother
  5. High digestibility to provide more calories in a smaller amount of food

Key questions and answers about pregnancy and nutritional priorities.

Why are increased energy and fat so important?

Increased energy and fat are important because pregnant and nursing cats have extremely high energy needs. Nursing is the most energy-demanding stage of a cat’s life. Nursing cats have 2 to 6 times the energy requirements of a healthy adult cat.

What is digestibility and why is it important?

Digestibility is how much eaten food is actually absorbed by the cat’s body. High digestibility is important because energy needs are very high and there is less physical space in the abdomen of pregnant cats.

What should I feed my pregnant or nursing cat?

It is extremely important to feed your pregnant or nursing cat a food that provides the increased nutrition she needs. We recommend feeding Hill’s® Science Diet® Kitten Food formulas as soon as you discover your cat is pregnant. These formulas are rich in essential nutrients and support development of the kittens during pregnancy. It’s always best to talk to your veterinarian about a food recommendation for your pregnant or nursing cat.

What Science Diet® products are available for pregnant or ,nursing cats?


How should these foods be fed to pregnant or nursing cats?

  • Pregnant cats: Feed the suggested amount on the packaging. Continue to feed a kitten food to the mother until her kittens are weaned.
  • Nursing cats: Leave food available for the mother at all times after the kittens are born. This will ultimately help to wean the kittens to a regular food and provide the mother with high-energy food she will need during this time.

How long is a cat pregnant?

Typical gestation (pregnancy) averages 63-65 days. 2 We recommend that you see a veterinarian weekly during pregnancy and nursing to assess weight and food intake. Please speak with your veterinarian to determine how often your cat should be examined during pregnancy and after the birth of her kittens.

When do I wean my kittens?

Weaning is usually a gradual process. Most kittens begin eating solid food between 3-4 weeks of age. Weaning should be effectively completed between 6-10 weeks of age. 3

Initial kitten care priorities.

It is recommended that your keep a record of your kitten’s weight, stools, development and activity every 1 or 2 days (especially in the first two weeks after birth) 4 and schedule a check-up with your veterinarian.

  • 1 Small Animal Clinical Nutrition, 4th Edition. Reproducing Cats; Pregnancy p. 321
  • 2 Small Animal Clinical Nutrition, 4th Edition. Reproducing Cats; Assessment p. 321
  • 3 Small Animal Clinical Nutrition, 4th Edition. Reproducing Cats; Weaning; p. 328
  • 4 Small Animal Clinical Nutrition, 4th Edition. Growing Kittens; p.329
Hills Author Hills Author
Staff Author

One of our staff authors prepared this article for you

Related articles

What Is Cat Nuzzling?

Learn the reasons why your cat nuzzles you or other pet siblings, including factors like affection, marking territory and more.

Allergic Dermatitis & Skin Conditions in Cats: Causes & Treatments

Discover some of the signs of feline skin conditions, how to help improve them, and when to consult your veterinarian about your cat's skin health.

How to Clean Cat Ears: A Step-by-Step Guide

Does your cat need help keeping their ears clean? Check out this guide on how to clean cat ears, from when to consider it to what to use.

Feline Aging & How it Affects Your Cat's Brain

Learn about the impact of brain aging and cognitive brain disorders that can affect cats. Good brain health is critical as your cat ages.

Do Cats Understand Mirrors?

Do cats understand mirrors? Find out what science can to tell us and how cats perceive their own reflections.

What Is a Cat's Primordial Pouch?

What is a cat's primordial pouch? You may be surprised to know that it's a natural part of your kitty's biological makeup! Read on to learn more.

Can Cats Have Schizophrenia?

Can cats have schizophrenia? Maybe, but it's more likely feline hyperesthesia syndrome.

Why Is My Cat Peeing Blood?

Learn causes & symptoms associated with blood in cat urine, including underlying urinary tract problems or issues like FLUTD, as well as treatment options.

Cat Pneumonia: Signs, Diagnosis & Treatment

Cat pneumonia can be life-threatening if not addressed when clinical signs start to show. Luckily, many cats treated for this illness recover.

Tips for Managing Your Cat's Kidney Disease

Understand the importance that kidneys play in your cat's health, and know how to spot the warning signs of kidney disease.

How to Choose the Right Cat Nutrition for Your Cat

Find out what healthy cat nutrition entails and how to choose the healthiest cat food. Also, learn about common cat feeding concerns and myths.

My Cat Ate String: Dangers, What to Do & Treatments

Discover health issues that can occur if your cat eats string, what you should do if you're sure they did, and possible treatments your vet might suggest.

All About Giardia in Cats

Learn important information about giardia in cats, including signs, diagnosis and treatment options for dealing with this parasitic infection.

The Changing Needs of a Kitten Becoming a Cat

Learn the needs of your aging kitten. It's nutritional and exercise requirements will start to change as it grows from being a kitten into an adult cat.

Do's and Don'ts for Disciplining a Cat

Having trouble with your cat's bad behavior? Learn how to effectively discipline your cat with this helpful list of do's and don'ts.

Liver Disease in Your Cat: Causes, Signs & Symptoms

Spotting the warning signs of liver disease in cats is critical. Learn more about the symptoms and what you can do to help prevent liver issues.

Choosing the Best Kitten Food: What to Look For & Avoid

Learn how to identify the kitten food that best aligns with her nutritional needs, keeping her active and healthy as she grows into an adult cat.

Bladder Stones in Cats: Types, Symptoms & Treatment

Learn all about bladder stones in cats: Specific types of stones, clinical symptoms your cat might be showing, and typical treatment options from a vet.

Suggestions to Make Your Cat Drink from a Bowl

If your cat refuses to drink from her water dish, or sees it more of a toy, learn some different ways you can encourage your cat to drink from a bowl.

Cat Diabetes: Symptoms & Treatment

Learn from a Veterinarian: Discover the underlying causes, typical symptoms and possible treatments for both type 1 and type 2 of diabetes in cats.