Dog Not Eating? Potential Causes and Solutions for Owners

Dog Not Eating? Potential Causes and Solutions for Owners

When your dog stops eating, it can be worrying and even a little frustrating. Dogs may skip meals occasionally without a major issue, but if your dog has stopped eating for more than a day or seems unwell, it’s worth investigating. A range of issues, from minor stress to serious health concerns, can cause a dog to stop eating. 

Common Reasons Why Dogs Stop Eating

Dogs lose their appetite for various reasons. These can be as simple as stress or changes in routine, but sometimes underlying health problems could be at play. Here’s a look at potential causes:

1. Dietary Changes or Sensitivity

  • Switching Foods: Sudden changes in your dog’s diet can lead to temporary appetite loss. Dogs have sensitive digestive systems and sometimes need time to adjust to a new food.
  • Food Sensitivities and Allergies: Dogs can develop food intolerances or allergies, which may cause them to avoid eating. Symptoms like itchy skin, digestive upset, or ear infections can also accompany allergies.

2. Dental Issues

  • Tooth Pain: If your dog has dental problems like a broken tooth, gum disease, or an abscess, eating may become painful.
  • Tartar and Plaque: Heavy tartar buildup or gingivitis may make chewing uncomfortable, especially for dogs with smaller mouths or certain breeds prone to dental problems.

3. Gastrointestinal Upset

  • Mild Digestive Issues: Occasional nausea, gas, or minor stomach upset can lead dogs to skip a meal or two.
  • More Severe Issues: Problems such as pancreatitis, inflammatory bowel disease, or blockages can cause your dog to lose interest in food and may require veterinary care.

4. Behavioural and Environmental Stressors

  • Changes in Routine: Moving, having visitors, or any major change in routine can lead to temporary stress, affecting your dog’s appetite.
  • Anxiety: Dogs sensitive to their environment may stop eating during stressful events like thunderstorms, fireworks, or separation anxiety episodes.

5. Medications and Vaccinations

  • Side Effects: Some medications can cause temporary nausea or decreased appetite as a side effect.
  • After Vaccinations: Some dogs might feel lethargic or lose interest in food for a day or two after vaccinations.

6. Health Conditions

  • Infections or Illnesses: Various infections, from respiratory to urinary tract infections, can make your dog feel unwell and lead to reduced appetite.
  • Liver, Kidney, or Other Organ Issues: Chronic conditions affecting vital organs can lead to ongoing appetite issues. These are typically accompanied by other symptoms like increased thirst, vomiting, or lethargy.

Steps to Take If Your Dog Isn’t Eating

A few small steps can often help you pinpoint and potentially resolve the problem. Here’s what you can try:

1. Evaluate Recent Changes

  • Think about any recent changes in diet, routine, or environment. If you’ve just introduced a new food, it may help to reintroduce the old food gradually or mix the new and old foods to ease the transition.

2. Check for Signs of Pain or Discomfort

  • Gently inspect your dog’s mouth for signs of dental pain or foreign objects stuck in the teeth. Additionally, feel along their abdomen and other body areas for signs of discomfort, such as yelping or pulling away.

3. Offer Food Variations

  • Warm up your dog’s food slightly to enhance its smell, or add a small amount of low-sodium broth for extra flavour. Sometimes this is enough to rekindle your dog’s interest.

4. Monitor Behaviour Closely

  • Pay attention to any other changes, like lethargy, vomiting, or diarrhoea. These symptoms can indicate that the appetite loss may be due to a health issue rather than a simple change in preference.

Signs That Warrant a Trip to the Vet

If your dog’s appetite loss is accompanied by other worrying signs, it’s best to consult a vet. Here are some red flags:

  • Persistent Vomiting or Diarrhoea: A bout of vomiting or diarrhoea now and then is normal, but persistent issues could indicate an infection, parasites, or GI issues.
  • Lethargy and Depression: If your dog seems unusually tired or less interested in their favourite activities, it may indicate an underlying illness.
  • Visible Pain or Discomfort: Whimpering, limping, or guarding certain areas of their body could suggest pain and might explain why they’re refusing to eat.
  • Weight Loss: Noticeable weight loss over a short period can be a symptom of a serious underlying condition.
  • Laboured Breathing or Coughing: Any breathing difficulties or coughing in addition to loss of appetite may point to respiratory infections or heart problems.

Preventing Future Appetite Issues in Dogs

Understanding what may trigger appetite loss in your dog can help you prevent it from happening in the future. Here are a few proactive tips:

1. Gradual Diet Transitions

  • When switching foods, mix the new food with the old one gradually over a week. This can help avoid digestive issues and allow your dog’s system to adjust smoothly to the new diet.

2. Regular Dental Checkups

  • Brushing your dog’s teeth, providing dental chews, and scheduling regular dental cleanings with your vet can prevent many painful oral issues that discourage eating.

3. Maintain a Consistent Routine

  • Dogs thrive on routine, so try to keep feeding times, exercise, and other daily habits as consistent as possible to avoid stress-related appetite loss.

4. Monitor for Food Sensitivities

  • Pay attention to symptoms like itching, gastrointestinal upset, or recurring ear infections, as these could indicate a food sensitivity or allergy. Switching to a hypoallergenic diet or testing for sensitivities can be beneficial if you notice any of these signs.

Conclusion

Loss of appetite in dogs can range from a minor issue to something more serious. If your dog skips a meal here and there, it’s often nothing to worry about. However, if they’ve stopped eating altogether, it’s worth investigating the potential cause, whether it’s dietary, environmental, or medical.

If you suspect food sensitivities are at play, consider a dog allergy test to identify any specific ingredients that might be causing discomfort. Testing can be a helpful step to ensure your dog stays happy, healthy, and well-nourished.

To provide you with technically accurate evidence-based information, content on the MyPetHealthStore blog is reviewed by medical professionals with veterinary expertise.

This article was reviewed by:

Hannah Shepherd RVN
Qualified Registered Veterinary Nurse & BVNA Member