Do Dogs Eat Plants When They Have an Upset Stomach? A Vet’s Perspective
It’s a common sight – your dog munching on grass. But do dogs eat plants when they have an upset stomach? Yes, it’s often assumed that they do, driven by an instinct to self-soothe or induce vomiting, although the reasons are more complex and not fully understood.
Why Dogs Eat Plants: Beyond the Upset Stomach
The relationship between a dog’s digestion and plant consumption is multifaceted. While a digestive upset may trigger this behavior, it’s important to understand the broader reasons.
- Instinct and Ancestry: Dogs evolved from wolves, who sometimes consumed plant matter along with their prey or independently. This instinct might still be present in domesticated dogs.
- Nutrient Deficiency: Although commercial dog food is formulated to be nutritionally complete, some dogs may instinctively seek out nutrients they feel are lacking. This is less common with high-quality foods.
- Fiber Intake: Plant matter, particularly grass, provides fiber. Fiber can aid in digestion by adding bulk to stools and promoting regular bowel movements.
- Boredom or Behavioral Reasons: Sometimes, eating plants is simply a sign of boredom or attention-seeking behavior.
- The “Purging” Theory: This is the most commonly cited reason. Dogs may eat plants to induce vomiting, theoretically to rid themselves of something that’s making them feel unwell.
The Science Behind the Purging Theory
While widely accepted, the purging theory regarding Do dogs eat plants when they have an upset stomach? lacks definitive scientific evidence. Some research suggests that dogs are more likely to eat plants before showing signs of illness.
Here’s what we know:
- Grass Isn’t Always Emetic: Not all dogs vomit after eating grass. In fact, many dogs consume grass regularly without any adverse effects.
- Digestion Aid: The presence of grass in the digestive tract may help dislodge minor irritants or improve the overall digestive process.
- Potential Irritation: The physical nature of the grass, with its rough edges, may irritate the stomach lining, triggering the vomiting reflex.
Identifying and Addressing Digestive Issues
If your dog frequently eats plants and exhibits other signs of digestive upset, it’s crucial to address the underlying cause.
Signs of Digestive Upset:
- Vomiting
- Diarrhea
- Loss of appetite
- Lethargy
- Excessive gas
- Changes in stool consistency or color
- Abdominal pain (whining, guarding the abdomen)
Steps to Take:
- Consult your veterinarian: A vet can diagnose the root cause of the digestive issues through a physical exam and diagnostic tests (e.g., blood work, fecal analysis).
- Dietary Adjustments: Your vet may recommend a special diet, such as a bland diet (boiled chicken and rice) for short-term relief or a prescription diet for ongoing management of food sensitivities or allergies.
- Probiotics: These beneficial bacteria can help restore balance to the gut microbiome and improve digestion.
- Parasite Control: Regular deworming is essential to prevent parasite infestations that can cause digestive upset.
Plant Toxicity: A Word of Caution
Not all plants are safe for dogs. Some plants contain toxins that can cause serious health problems, even death. Before allowing your dog access to outdoor areas, familiarize yourself with common poisonous plants in your region.
Common Toxic Plants for Dogs:
| Plant | Toxin(s) | Symptoms |
|---|---|---|
| —————— | —————————————– | ———————————————————————————– |
| Lily | Various toxins (especially in true lilies) | Kidney failure (particularly in cats), vomiting, depression, loss of appetite |
| Oleander | Cardiac glycosides | Vomiting, diarrhea, abdominal pain, weakness, heart arrhythmias, collapse |
| Sago Palm | Cycasin | Liver failure, vomiting, diarrhea, seizures, coma |
| Azalea/Rhododendron | Grayanotoxins | Vomiting, diarrhea, weakness, depression, heart arrhythmias, seizures |
| Tulip/Narcissus | Tulipalin A (highest concentration in bulb) | Vomiting, diarrhea, drooling, abdominal pain, lethargy, heart problems, difficulty breathing |
If you suspect your dog has ingested a toxic plant, contact your veterinarian or the ASPCA Animal Poison Control Center immediately.
Keeping Your Dog Safe: Alternatives to Plant Consumption
If your dog frequently eats plants, and you’ve ruled out medical causes, consider these strategies to redirect the behavior.
- Enrichment Activities: Provide plenty of exercise, toys, and mental stimulation to prevent boredom.
- Training: Teach your dog commands like “leave it” or “drop it” to discourage plant eating.
- Safe Chewing Options: Offer appropriate chew toys to satisfy your dog’s natural chewing instincts.
- High-Fiber Diet: If your dog is seeking fiber, talk to your vet about adding a fiber supplement to their diet.
Frequently Asked Questions (FAQs)
Is it normal for dogs to eat grass?
Yes, it’s a very common behavior. Most dogs eat grass occasionally, and it’s not necessarily a cause for concern. However, frequent or excessive grass eating, especially if accompanied by other symptoms, warrants a vet visit.
Does eating grass always mean my dog is sick?
No, not necessarily. As discussed, do dogs eat plants when they have an upset stomach, sometimes it’s to induce vomiting but not always. They might also do it out of boredom, instinct, or to get more fiber. Observe your dog for other signs of illness before assuming they are sick solely based on grass consumption.
What kind of plants are safe for dogs to eat?
While most grasses are harmless, some plants are specifically beneficial and safe in small quantities. These include wheatgrass, parsley, and basil. Avoid allowing your dog to consume large amounts of any plant, even if it’s considered safe.
Can eating plants cause my dog to get worms?
Yes, if the plants are contaminated with parasite eggs or larvae. This is more likely if your dog eats plants in public areas frequented by other animals. Regular deworming is crucial to protect your dog.
Why does my dog vomit after eating grass?
The physical properties of the grass can irritate the stomach lining, triggering the vomiting reflex. The sharp edges of the grass blades may stimulate the vagus nerve, leading to emesis. Not all dogs vomit, though.
What should I do if my dog eats a poisonous plant?
Immediately contact your veterinarian or the ASPCA Animal Poison Control Center. Have information about the plant and the amount ingested ready. Do not try to induce vomiting unless instructed to do so by a professional.
Is there a difference between eating grass and eating other plants?
Yes. While eating grass is generally considered harmless, eating other plants can be dangerous, especially if they are toxic. Identify the plants your dog is consuming and research their toxicity.
How can I stop my dog from eating plants?
Provide enrichment, training, and appropriate chewing options to distract them. If the behavior is persistent, consult with your veterinarian or a certified dog trainer for further guidance.
Can a change in diet cause my dog to eat more plants?
Yes, a diet lacking in fiber or certain nutrients may trigger a need to consume plants. Discuss your dog’s diet with your vet to ensure it’s nutritionally complete.
Is it possible my dog is just bored?
Absolutely. Boredom is a common reason for dogs to engage in unwanted behaviors, including plant eating. Make sure your dog gets enough exercise and mental stimulation.
Are some breeds more prone to eating plants?
While no breed is specifically predisposed, dogs with high energy levels and a tendency to boredom may be more likely to engage in plant eating.
When should I be concerned about my dog eating plants?
You should be concerned if your dog is eating plants excessively, showing signs of digestive upset, or if the plants they are consuming are known to be toxic. A vet visit is always recommended to rule out any underlying medical conditions. Do dogs eat plants when they have an upset stomach because of a greater underlying problem? It is best to have your vet check.