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

Dog Nutrition

6 Eating Problems That Can Affect Dogs: Signs & Treatment

Elizabeth Gray
By Elizabeth Gray · Reviewed & fact-checked by Dr. Paola CuevasVet Approved
Dr. Paola Cuevas
Reviewed & Fact-Checked byDr. Paola CuevasVeterinarian
Dr. Paola Cuevas is our Senior In-House Veterinarian at Dogster and Pangolia. She has over 19 years of experience working with an array of species and loves sharing her knowledge and experience with our readers and aims to provide assistance with any issue presented by your non-human family members. She received her degree from the University of Guadalajara, Mexico.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on August 7, 2026
Share
dog not eating its food

You’re probably familiar with the most common eating disorders in humans, such as anorexia and bulimia. While dogs can develop abnormal eating behaviors and changes in appetite, these are not classified as psychiatric eating disorders as they are in people. Instead, they are typically linked to underlying medical conditions, environmental factors, learned behaviors, or stress-related responses. In this article, we’ll discuss six eating problems affecting dogs and what to do if you suspect your pup has a problem.

divider dog paws 4 oct 2024

The 6 Eating Problems That Can Affect Dogs

1. Megaesophagus

Common Signs:Regurgitation, gagging when eating
Treatment:Medication, diet changes, feeding tube

This is a physical condition that impacts the dog’s esophagus, which is the tube that connects the mouth with the stomach. Dogs with this condition develop an abnormally large esophagus that cannot properly transport food and water to the stomach. Because of that, food and water build up in the esophagus, often causing the dog to regurgitate1.

A common and severe complication of megaesophagus is aspiration pneumonia. This occurs when the dog breathes trapped food or water into their lungs. Megaesophagus is an inherited condition in some breeds. Dogs can be born with megaesophagus or acquire it later in life as a result of another condition. Megaesophagus is relatively easy to diagnose but can be complicated to treat because of the risk of complications.


2. Coprophagia

Common Signs:Eating poop
Treatment:Medication, diet changes, behavioral modification

Coprophagia is the official term for eating poop. Dogs with this behavior may snack on their own or another dog’s poop. It is tricky because it often has a behavioral cause but can also be associated with underlying medical conditions.

Dogs with malnutrition or malabsorption due to poor diet or digestive disorders may be more likely to engage in this behavior. Any disease or medication that causes increased appetite, such as diabetes or Cushing’s syndrome, can also be associated with coprophagia. If medical causes are ruled out, it likely has a behavioral root, such as poor housetraining. In this case, you should reach out to a veterinarian or animal behaviorist and ask for advice.


3. Anorexia

Common Signs:Not eating or eating less, weight loss
Treatment:Medication, diet changes, feeding tube, surgery

In dogs, anorexia refers to a loss or decrease in appetite. It is a clinical sign rather than a disease or disorder. Unlike humans, it is typically caused by a physical illness or ailment. Dogs may suffer from either “true” or “pseudo” anorexia. Pseudo-anorexia means that the dog still desires to eat, but can’t because of some physical issue.

Dental or mouth issues, tumors, or chronic pain anywhere in the body may all cause pseudo-anorexia. True anorexia may be caused by stress or changes in the environment. More commonly, it occurs as the result of disease, nausea, cancer, reduced olfaction, pain, or as the side effect of certain medications. Successfully treating this condition requires correctly diagnosing the underlying cause. In dogs, anorexia is a sign rather than a disease.


4. Gorging

Image By: Mat Coulton, Pixabay
Common Signs:Compulsive eating, swollen stomach, vomiting, stomach pain
Treatment:Behavior modification, increased exercise, medication

Gorging is an abnormal eating behavior where your dog may attempt to consume large amounts of food regardless of satiety. They’ll eat all their dinner and ask for more. If given the chance, they’ll target your dinner. If your dog’s food and treats aren’t securely locked away, a dog with this behavior will overindulge, which can increase the risk of gastrointestinal upset and, in some cases, GDV or bloat.2

Often, gorging happens due to boredom or a learned or compulsive behavior pattern. Try increasing your dog’s daily physical and mental stimulation. Medications may be required if the gorging is a true compulsive disorder diagnosed by a veterinarian.


5. Bolting

Common Signs:Rapid eating, food guarding, vomiting
Treatment:Feeding small meals, switching to a slow feeder

Bolting is an abnormal eating behavior that can increase the risk of certain complications in dogs. Dogs with this condition consume their food so quickly that it isn’t chewed properly, and this rapid intake may contribute to regurgitation or vomiting of undigested food shortly after eating. You may notice your dog vomiting what looks like the whole, undigested kibble right after eating.

Large, deep-chested dogs with this behavior can swallow large quantities of air while bolting food. This may increase the risk of GDV or bloat, a life-threatening emergency in dogs. Slow feeders can help reduce bolting behavior. You can also try feeding small, frequent meals to help lower the risk of gastric distension.


6. Pica

Image Credit: Alejandro rodriguez, Shutterstock
Common Signs:Eating non-food items
Treatment:Increased physical and mental stimulation, medication

Pica is an unusual behavioral and medical condition where dogs regularly consume inedible items. While dogs of any age chew on and sometimes ingest parts of items like sticks or plastic toys, those with pica may repeatedly ingest non-nutritive objects beyond normal exploratory behavior. This condition is dangerous because the dog may eat poisonous or large items that cause a blockage in the intestines.

Pica can have behavioral and medical causes, and nutritional imbalances or gastrointestinal disease may be associated. Anxiety and boredom can also contribute to this condition. In some cases, pica may be a compulsive behavior, but it is more common in cats.

divider dog paws 4 oct 2024

What to Do If You Suspect Your Dog Has an Eating Disorder

As we’ve learned, abnormal eating behaviors and appetite changes in dogs can have medical and behavioral causes. The first step if you suspect your dog has an eating problem is determining what is causing it. Make an appointment with a veterinarian to diagnose or rule out medical conditions first.

Keep in mind that diagnosing the medical cause of an eating problem can be complicated because there are so many potential culprits. A veterinarian may need to run blood work and imaging or refer you to an internal medicine specialist for more advanced tests.

If medical conditions are ruled out, a vet can help you get to the bottom of your dog’s behavioral issues. Some behavior issues can be improved with environmental enrichment, appropriate physical exercise, and structured interaction. Others may be more complex and require medication or the expertise of a certified dog behaviorist.

divider dog paws 4 oct 2024

Conclusion

Abnormal eating behaviors and appetite changes in dogs are not classified as psychiatric eating disorders as they are in humans, but they can still be difficult to diagnose and treat. If your dog is suffering from any of these conditions, work closely with a veterinarian as you diagnose and treat them. Don’t be afraid to ask questions or seek additional help during the process. Dealing with a sick dog is an emotional situation, and you’ll want as much support as possible.

Sources

Featured Image Credit: Daria Lixovetckay, Shutterstock

The Dogster Newsletter

Expert dog care, straight to your inbox

News, insights, expert advice, and everything dog.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Elizabeth Gray
Authored by

Elizabeth Gray

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.

Pica in Dogs: Vet-Verified Signs, Causes, Treatment & Prevention

Pica in Dogs: Vet-Verified Signs, Causes, Treatment & Prevention

Have you ever found your dog eating something they shouldn’t? It happens; dogs are fond of picking up anything they can find! But what if your pup consistently…

Misty Layne
By Misty Layne · 1 month ago
My Dog Eats Too Fast: 6 Vet-Reviewed Tips on How to Slow Them Down

My Dog Eats Too Fast: 6 Vet-Reviewed Tips on How to Slow Them Down

Some dogs eat their food very quickly. But how fast is too fast? It might just seem like your dog is hungry or enjoys their food, but eating too fast can be ha…

Grant Piper
By Grant Piper · 2 months ago
What to Do When Your Dog Won’t Eat: Possible Causes & Solutions (Vet Reviewed)

What to Do When Your Dog Won’t Eat: Possible Causes & Solutions (Vet Reviewed)

It can be stressful if your dog suddenly stops eating, especially if they’re typically a big eater. There are a few reasons that some dogs stop eating, and som…

Brooke Billingsley
By Brooke Billingsley · 1 month ago
Why Is My Dog Not Eating? 9 Vet-Verified Reasons & What to Do

Why Is My Dog Not Eating? 9 Vet-Verified Reasons & What to Do

The role of every dog owner is to do everything it takes to keep their puppy happy and healthy. So, it's understandable that many owners panic when their dog d…

Jana Blagojevic
By Jana Blagojevic · 1 month ago

Why Does My Puppy Eat So Fast? 5 Vet-Reviewed Reasons & Advice

Bringing a new puppy into your home is always exciting, but along with the good can sometimes come some bad. Your puppy may exhibit some behaviors that you nee…

Misty Layne
By Misty Layne · June 17, 2026
Why Does My Puppy Eat So Fast? 5 Vet-Reviewed Reasons & Advice

Am I Overfeeding My Dog? 6 Vet-Verified Signs to Watch For

We all know how much dogs enjoy mealtimes and will happily eat whatever you give them. You might mistake their hearty appetite as a sign they need more food or…

Sarah Psaradelis
By Sarah Psaradelis · June 27, 2026
Am I Overfeeding My Dog? 6 Vet-Verified Signs to Watch For

Why Some Dogs Treat Mealtime Like Playtime - And When to Pay Attention

Most dogs are reliable eaters. Bowl goes down, food disappears. So when a dog starts batting kibble across the kitchen floor, tossing pieces in the air, or nos…

Dan Seymour
By Dan Seymour · July 22, 2026
Why Some Dogs Treat Mealtime Like Playtime - And When to Pay Attention

How to Get a Picky Dog to Eat: 12 Vet-Approved Tips

It’s frustrating and concerning when your dog won’t eat their meals. You know that they need to eat, but they’re simply refusing to do so. It may be because th…

Adam Mann
By Adam Mann · July 4, 2026
How to Get a Picky Dog to Eat: 12 Vet-Approved Tips

Why Do Dogs Eat Their Vomit? 4 Vet-Reviewed Reasons & What to Do

Dogs have some really weird habits that disgust us, but we just chalk it up to them being dogs. For example, your dog sniffing other dogs’ butts is normal to d…

Codee Chessher
By Codee Chessher · June 29, 2026
Why Do Dogs Eat Their Vomit? 4 Vet-Reviewed Reasons & What to Do

8 Vet-Reviewed Signs You Are Underfeeding Your Dog

We all know how important our dog’s diet is to their health and wellbeing. There are mountains of information regarding the perils of canine obesity, and the h…

Nicole Cosgrove
By Nicole Cosgrove · June 29, 2026
8 Vet-Reviewed Signs You Are Underfeeding Your Dog

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

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…

Lorre Luther
By Lorre Luther · June 29, 2026
How Long Can a Dog Go Without Food? Vet-Verified Facts & FAQ

Why Does My Dog Walk Away From Their Food? 3 Vet-Reviewed Reasons & What to Do

If you’re noticing that your dog likes to check out their food but doesn’t actually do much eating, it can be extremely frustrating. Or perhaps you’re finding…

Nicole Cosgrove
By Nicole Cosgrove · June 29, 2026
Why Does My Dog Walk Away From Their Food? 3 Vet-Reviewed Reasons & What to Do

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Dogster app on a phone