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.

How Long Can a Dog Go Without Food? Vet-Verified Facts & FAQ

sad golden retriever dog beside food bowl on the floor with no appetite

If your dog hasn’t been eating well, it’s normal to be concerned, and if it’s been a while since your companion seemed interested in food, you might be worried about how long it’s safe for a dog to go without eating. While your canine buddy won’t die of starvation immediately if they skip a few meals, it’s best to take your dog to the veterinarian for a check-up if more than 48 hours pass without them eating a solid meal.

While there’s no hard and fast rule when it comes to precisely how long dogs can go without food, it’s possible for some (in extreme circumstances) to survive without eating for up to 5 days or so. Cats are different from dogs in this respect, and it’s an absolute medical emergency if your cat doesn’t eat for 24–36 hours. Check in with your veterinarian if your feline buddy hasn’t taken a bite in 24 hours.)

divider dog faces oct 2024

Why Is My Dog Not Eating?

There are several possible explanations for why your dog is either not eating or consuming less than normal. Some of the most common issues causing appetite loss include dental problems and an upset stomach. Tummy issues are most often caused by eating something that doesn’t agree with your pup. Highly processed, sugary, or very oily human food is a common culprit. So, restricting your dog’s access to unhealthy human foods will keep your four-footed friend healthy and limit the chances your pet will have stomach issues. Dogs suffering from an upset stomach often have other symptoms of gastrointestinal distress, such as vomiting and diarrhea.

An infection can also reduce your dog’s desire to eat.. Lack of appetite is often an early indication of an underlying health issue. So keep an eye on your pup’s eating habits and get in touch with your veterinarian if your dog doesn’t eat for a couple days.

If your pet is otherwise healthy, they might be refusing to eat because of stress or anxiety. Common triggers for stress-related eating issues include environmental changes such as moving. Other common stressors include storms, loud noises, boredom, and a lack of healthy stimulation. Homes with multiple pets sometimes have issues with “food bullying,” where one animal actively blocks other pets from access to food.

Dogs are extremely sensitive creatures, so don’t be surprised if your pup would rather not eat when suffering from stress caused by loud noises. Your pup’s appetite should improve within a day of the stressor being removed. While aging dogs don’t require as many calories to thrive as younger animals, refusal to eat often signifies a medical issue in older pets.

Food changes are another common culprit. If you decide to switch dog food, you might encounter reluctance on the part of your canine friend to eat the new kibble or wet food. Many pets, even those that aren’t finicky eaters, will shy away from or even refuse to eat new food. Switching from one flavor to another within one brand tends to cause less trouble, but plan to slowly introduce new options if you’re transitioning from one brand to another.

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

Does Dog Food Expire?

Yes. Dog food has a use-by date, just like perishable human products. Manufacturers usually print the use by or on the package. But just because the food’s expiration date hasn’t been reached doesn’t mean that the food is still fresh enough to entice your pup to eat. Both dry and wet food have limited shelf lives. Store dry food in an airtight container to extend its freshness. Look for wet food serving sizes that will allow your pet to consume everything in the package in one or two meals.

divider dog faces oct 2024

What Can I Do to Get My Dog to Eat?

It depends on the cause! If your dog isn’t eating because they ate something that didn’t agree with their tummy, there’s probably nothing you need to do. Your pup will start eating again once they feel better. You can always try getting their appetite jump-started by offering a dog-safe bone broth made without salt or spices and letting them eat bland foods such as plain boiled chicken with a little bit of white rice. But don’t get in the habit of bribing your otherwise healthy dog to eat if they don’t seem immediately interested in what you give them for breakfast or dinner. Dogs are smart, and before you know it, your pup will have you trained to “encourage” it to eat with multiple treats.

If a serious medical issue is causing the problem, there’s not much you do until the cause is identified, which is why it’s important to get your pet examined by a medical professional if they go more than a couple of days without eating.

If the issue appears to have been caused by a quick transition from one brand of dog food to another, you should be able to get your dog to start eating again by giving them something they actually want to eat. The best way to prevent this problem is to mix the new food with the kibble or wet food your dog currently eats and slowly reduce the amount of the old food while increasing the new food.

close up of french bulldog dog being held by veterinarian doctor at vet clinic
Image Credit: Hryshchyshen Serhii, Shutterstock

divider dog faces oct 2024

A Quick Note About Water

While many dogs can go for a few days without eating, not drinking is an entirely different story. Most dogs can go for around 24 hours without consuming water before becoming clinically dehydrated. Older animals and those feeling unwell will often begin showing signs of dehydration sooner than 24 hours. All creatures require access to clean, fresh, water, and there’s no circumstance under which any pet should be left without something nice and thirst-quenching for more than 6 hours.


Featured Image Credit: Phuttharak, 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

16 Fascinating Pet Therapy Statistics in 2025: Benefits, Facts & FAQ

Note: This article’s statistics come from third-party sources and do not represent the opinions of this website. We all love a good snuggle...

Bull Boxer (Bulldog & Boxer Mix): Info, Pictures, Facts, Care & More

If you’ve been looking for a dog that is loving, loyal, affectionate as they can be and intelligent to boot, then the Bull...

Border Collie Samoyed Mix: Info, Pictures, Care & More

The modern era has seen an explosion in designer dog breeds. The previous era of dog breeding was focused on purebred dogs. Now,...

Saint Bernard Dog Breed: Info, Pictures, Facts & Traits

The first time you meet a Saint Bernard (or St Bernard) you won’t forget it, their size alone is enough to overwhelm you....

More related

10 Best Dog Travel Bags In 2025: Reviews & Top Picks

While it is possible to carry all your pet’s provisions in a standard backpack, a dog travel bag provides compartments and pockets specifically...

Tail Docking vs Tail Amputation: Vet-Verified Differences & Explanation

Tail docking and tail amputation are commonly mistaken as the same thing. These two terms are often used interchangeably, but they have distinct...

Just Right Dog Food Review 2025: Pros, Cons, Recalls & FAQ

Just Right dog food is a unique option for your pooches, with customization options for your dog’s specific needs. When it comes to...

Can Dogs Eat Veggie Straws? Vet-Reviewed Facts & FAQ

Veggie Straws are popular snacks because they are tasty and seem healthier than some other chip options on the market. However, this does...

Keep reading

Coconut Oil Dog Treats: 7 Vet-Approved Homemade Recipes

Coconut oil seems to be a miracle cure and go-to for many things these days. This nutrient-dense ingredient can easily replace other less-healthy oils in meals, and we can even safely share this neutral, hypoallergenic substance with our canine counterparts....

beagle dog having treats

Is It Cheaper to Make Your Own Dog Food? Vet-Approved Facts & Advice

As more and more pet parents realize the value of good nutrition for overall health, the amount spent on commercial dog food is soaring. In the U.S., owners spent $422 on pet food in 2020. The pet industry expenditure has...

man preparing homemade dog food

Evermore Dog Food Review 2025: Pros, Cons & Verdict: An Expert’s Breakdown

*Free shipping for subscriptions Human-grade, frozen-fresh, hand-made dog food produced by a small-scale, family-run, ethically-minded company? Gently cooked, highly nutritious, and delicious recipes that satisfy my dog’s appetite and keep him healthy? Count us in! My dog Leo and I...

DOG_SAPR_Evermore Dog Food

How Many Times a Day Should a Dog Eat? 6 Reasons a Schedule Works

As a pet parent, you worry about everything from getting your dog’s vaccines on time to how much you should be feeding him to keep him healthy and happy. Regarding feeding, there’s truly no clear-cut answer as to how much...

close up of a dog eating from the bowl

Whole Earth Farms Dog Food Review 2025: Recalls, Pros & Cons

Review Summary If you’re a pet parent, then you’ve probably already heard of Whole Earth Farms dog food just because of their tagline, “Goodness from the Earth.” Whole Earth Farms is dedicated to providing pets everywhere, whether they’re dogs or...

Dogster_Whole Earth Farms Dog Food Review

Can Dogs Eat Tic Tacs? Vet-Reviewed Risks & Precautions SE PAOLA

Tic Tacs are a tasty little treat that we keep in our car or purses whenever we need breath freshening. While most of us wouldn’t offer a Tic Tac to our dog to freshen its breath—no matter how badly they...

Can Dogs Eat Tic Tacs

What Can Be Mixed With Dry Dog Food? 25 Vet-Approved Suggestions

If you’re like most dog owners, you want what’s best for your furry friend, including a healthy diet with plenty of nutrients and protein. But, should your pup eat only the same dry food day in and day out? Absolutely...

dachshund dog eating from elevated bowl

10 Best Dog Foods for St. Bernards in 2025 – Reviews & Top Picks

Finding the right dog food is essential and can also be frustrating. You have to work through reviews and clever marketing strategies to determine what’s best for your dog based on its age, activity level, breed, and size. Chances are...

Saint Bernard sitting in meadow