Get

In Your Inbox

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

What to Feed a Pregnant Dog: First, Second & Third Trimesters (Vet-Approved Guide)

Sausage dog pregnant laydown at the bed Dauchand

Good news! Your dog is expecting puppies! This is an exciting time in any pet parent’s life. But it can also be overwhelming if this is your dog’s first litter. You want to make sure you are giving your dog the food that she needs to help her grow her puppies. A balanced diet is essential to help momma dog through her pregnancy and have a healthy delivery and lactation.

Speak to a vet well in advance of your dog’s pregnancy and due date so they can advise you on nutrition, preventative healthcare, and recommended vaccination and worming protocols. Your vet can also prepare you for the labor itself, which can sometimes require veterinary attention or even a cesarean.

Dogster divider_v1_NEW_MAY_24_

What to Feed in the First and Second Trimesters

Dogs are pregnant for 62 days, or roughly 9 weeks. Just like humans, they have three trimesters, each around 21 days long. The first trimester starts when a dog ovulates and her eggs are fertilized. She could have anywhere from one to 10 or more puppies growing inside of her!

Fetal growth is speedy at the early ages of pregnancy, but the most rapid development of puppies is actually during the third trimester. This is why it is important to have your dog on a healthy balanced diet from the very beginning. Some experts recommend feeding puppy food to your pregnant dog due to its high nutrient content.

If your dog is already on a high-protein, high-nutrient diet, you can continue to feed them as normal through the first and second trimesters. A small increase in the amount of food can be made if desired but should be no more than a 10% increase. You want to avoid her losing weight but also ensure that she does not become overweight. It’s a fine balance.

A high-quality diet should consist of 29% protein, 17% fat, a high amount of soluble carbohydrates, and low fiber content, according to the AKC. High-quality commercial diets will contain the recommended amounts of calcium and phosphorus for the formation of the puppies’ bones and for milk production. Never use any supplements without speaking to a vet, as this may lead to severe health issues for both the mother dog and her puppies.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

Always be sure to have fresh clean water available for your dog at all stages of pregnancy. Dehydration can cause a number of complications in both your dog and her growing pups.

What to Feed in the Third Trimester

In weeks six to nine, your pregnant dog’s weight will gradually increase. By this time, their food consumption has likely increased by about 15% to 25%. This is the most important developmental time in a dog’s pregnancy. The puppies’ organs and bones are developing rapidly at this stage. This will place the greatest strain on the mother nutrition-wise.

Improper nutrition can lead to reduced health of the mother dog and her puppies. It can also lead to birth defects and difficulty delivering the puppies. Mammary development may also be impaired, which can lead to decreased milk production or even no production at all.

Due to the discomfort of having almost full-term pups in her belly, momma dog may not have much of an appetite. To help combat this, try feeding her multiple small meals throughout the day to ensure that she gets adequate nutrition.

Fernando Castelani_shutterstock_birth
Image By: Fernando Castelani, Shutterstock

Mother Dog Diet While Nursing

After the puppies are born, your mother dog’s diet should slowly and steadily increase by 20–30% over the next month. By the end of the first month, she may be eating two to three times the amount of food that she was eating before her pregnancy, as her caloric requirements have doubled or even quadrupled, based on her litter size.

Encourage the mom to eat as much as she wants. It requires a lot of energy to produce milk for the pups, and the pups are also rapidly growing at this stage.

You can also complement and have an accurate calculation by using our calculator tool. Try it here:

The exact amount of calories an individual animal needs to maintain a healthy weight is variable and influenced by many factors including genetics, age, breed, and activity level. This tool is meant to be used only as a guideline for healthy individuals and does not substitute veterinary advice 

Dogster divider_v1_NEW_MAY_24_

Final Thoughts

Weak puppies and even fading puppy syndrome can result from inadequate nutrition during a dog’s pregnancy. It is vital that your dog is fed a consistent high-quality diet throughout her pregnancy and given access to fresh and clean water.

By feeding her an appropriate diet, you can help momma dog safely deliver healthy puppies. Be sure to take the mom to regular vet visits to keep her all-around healthy during her pregnancy. Finally, enjoy raising and playing with your new puppies!

See Also: 


Featured Image Credit: iamjorge, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* 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 Dogster 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.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

10 DIY Dog Wash Station Plans You Can Make Today (With Pictures)

Dog wash stations can be extremely helpful because they provide a safe environment for your dog and yourself. You can typically find pet...

How Much Do Dog & Puppy Vaccinations Cost in the UK? 2025 Guide

If you’re considering getting a puppy and have started researching the costs you’ll have to cover once they’re home, you’ll have already discovered...

Cane Corso French Bulldog Mix: Info, Pictures, Care & More

Many “designer” dogs are bred in the United States today, and none is more interesting (or more difficult to define) as the Cane...

Cavapoo (Cavalier King Charles Spaniel & Poodle Mix): Info, Pictures & Care

The Cavapoo is a loving dog that’s perhaps best suited as a companion animal or family pet. This mix combines the sweet nature...

More related

Jackweiler Dog Breed: Info, Pictures, Temperament & Traits

The Jackweiler is a designer dog breed that is a combination of the Jack Russell terrier and the Rottweiler. An odd combination of...

How Fast Can a Dog Run? Breed-by-Breed Breakdown

You already know that your dog is fast, but have you ever wondered just how fast they are? As it turns out, the...

14 Vet-Verified Goldendoodle Pros & Cons: What to Know Before You Get One

Goldendoodles are adorable and quirky dogs with a gentle nature. They get along with everyone, making them an excellent addition to families. But...

English vs American Labrador: The Main Differences (With Pictures)

Have you ever noticed that Labradors seem to come in two body types? Well, you’re not wrong. Within the breed, there are two...

Keep reading

9 Cranberry Dog Treats Recipes to Make for Your Pup

Check with a veterinarian before adding any new foods to your pet’s diet, particularly if your pet has any underlying health conditions or is on a special diet. If you love baked goods and making all sorts of yummy snacks...

cranberry dog cookie treats

Member’s Mark Dog Food Review 2025: Pros, Cons, Recalls, & FAQ

Review Summary Member’s Mark is the brand of Sam’s Club. Named after its founder, Sam Walton, Sam’s Club is owned by Walmart. The Member’s Mark dog food is sold in large bags for a bargain price, appealing to dog owners...

Dogster_Member’s Mark Dog Food Review

4Health Dog Food Review 2025: Pros, Cons, Recalls & FAQ

If you don’t have a Tractor Supply Co. in your area, you might not have heard of their private label dog food brand, 4Health. The brand offers limited ingredient foods that include real meat and veggies in both grain-free and...

Dogster_4Health Dog Food Review

Can Dogs Eat Ants? Vet-Verified Facts & FAQ

As curious animals, dogs are bound to eat ants at some point in their life. Those little insects that you need to protect your sugary foods from can be found everywhere. Your dog is likely going to eat ants from...

Can Dogs Eat_Ants

Can Dogs Eat Onions? Vet-Verified Toxicity & Safety Tips

Dogs are often indiscriminate about what they eat, so we have to be careful with what types of snacks and table scraps we feed them, as they may contain ingredients that are harmful to dogs. One common food to avoid...

Can Dogs Eat Onions

Can Dogs Eat Salsa? Vet Approved Facts & FAQs

Salsa is a spicy relish composed of tomatoes, peppers, herbs, limes, onions, and spices. It’s usually paired with tortilla chips as an appetizer, but it can also be used as a topping or filling for tacos, enchiladas, or burritos. Salsa...

Can Dogs Eat Salsa

10 Best Dog Foods for Tear Stains in 2025 – Reviews & Top Picks

Your dog could have tear stains for many reasons, including food intolerances. According to the American Kennel Club, some dogs see a reduction in tear stains after changing diets, we recommend a switch to a high-quality, limited-ingredient dog food.1 Before...

Closeup of Poodle dog with white fur and red tear stains

8 Best Organic Puppy Foods in 2025: Reviews & Top Picks

Puppies require healthy, high-quality foods as they grow through this developmental stage. One of the best ways to ensure your puppy gets nutritious food is to look for dog food with the USDA Organic Label. In truth, it’s pretty challenging...

Cocker Spaniel puppy eating