Why Do Dogs Eat Grass? Common Reasons & When to Worry

If you've ever caught your dog munching on grass during walks, you're not alone. This common behavior puzzles many pet owners, but it's usually nothing to worry about. Here's everything you need to know about why dogs eat grass and when it might signal a problem.

Is It Normal for Dogs to Eat Grass?

Yes, it's completely normal. Studies show that up to 79% of dogs eat grass at some point in their lives. This behavior, called "pica" (eating non-food items), is natural canine behavior and usually harmless.

Common Reasons Why Dogs Eat Grass

1. They Like the Taste

The simplest explanation is often correct: many dogs simply enjoy eating grass. Fresh, young grass can be appealing, especially in Mauritius where grass grows year-round thanks to our tropical climate.

2. Dietary Fiber

Dogs may instinctively seek out grass to add fiber to their diet. This ancestral behavior helped wild canines supplement their primarily meat-based diet with plant material for better digestion.

3. Upset Stomach Relief

Some dogs eat grass when they have an upset stomach. The grass can help induce vomiting, which may relieve nausea or help eliminate something that's bothering their digestive system.

Important: While occasional grass-eating followed by vomiting is normal, frequent vomiting requires veterinary attention.

4. Boredom or Anxiety

Dogs left alone in yards for long periods may eat grass out of boredom. In Mauritius's warm climate where dogs spend considerable time outdoors, this can become a habit if they lack mental stimulation.

5. Nutritional Deficiency

Though less common with modern dog foods, some dogs may eat grass if their diet lacks certain nutrients. However, if you're feeding quality dog food appropriate for your dog's age and size, this is unlikely.

When Should You Be Concerned?

Contact Your Vet If:

Your dog eats grass obsessively or frantically
Vomiting becomes frequent (more than once a week)
You notice blood in vomit or stool
Your dog shows signs of lethargy or loss of appetite
The behavior suddenly increases significantly
Your dog eats grass treated with pesticides or herbicides

Grass Safety in Mauritius

Avoid Treated Lawns

In Mauritius, many public spaces and residential areas use pesticides and herbicides on grass. These chemicals can be toxic to dogs. Stick to untreated areas, and if you're unsure, prevent your dog from eating grass in public spaces.

Toxic Plants

Mauritius has several plants that can be mistaken for grass or grow alongside it that are toxic to dogs. Learn to identify common toxic plants in your area. See our complete guide on toxic plants for pets in Mauritius.

Parasites

Grass can harbor parasites and their eggs, especially in Mauritius's humid climate. Ensure your dog is on regular parasite prevention medication. Consult our guide on flea and tick prevention in Mauritius.

How to Manage Grass-Eating Behavior

Ensure Proper Nutrition

Feed your dog high-quality dog food appropriate for their age, size, and activity level. Check our guide on best dog food brands available in Mauritius.

Provide Mental Stimulation

If boredom is the cause, increase exercise and mental enrichment:

Daily walks (early morning or late evening in Mauritius's heat)
Interactive toys and puzzle feeders
Training sessions
Playtime with other dogs

Offer Safe Alternatives

If your dog genuinely enjoys eating grass, consider:

Growing pet-safe grass indoors in a pot
Providing fresh vegetables (carrots, green beans) as treats
Adding fiber supplements (consult your vet first)

Distraction and Training

When your dog starts eating grass:

Redirect their attention with a toy or treat
Use the "leave it" command (if trained)
Move to a grass-free area

Scientific Studies on Dogs Eating Grass

A study published in Applied Animal Behaviour Science found that:

68% of dogs ate grass on a daily or weekly basis
Only 8% showed signs of illness before eating grass
Only 22% vomited after eating grass
Younger dogs were more likely to eat grass

This research suggests that grass-eating is normal behavior and not necessarily related to illness or dietary deficiency in most cases.

FAQ: Dogs Eating Grass

Should I stop my dog from eating grass?

Not necessarily. If the grass is untreated and your dog is healthy, occasional grass-eating is harmless. However, prevent access to treated lawns or areas with toxic plants.

Will eating grass hurt my dog?

Clean, untreated grass is generally safe. The risks come from pesticides, herbicides, toxic plants, and parasites. In Mauritius's tropical environment, always ensure your dog's parasite prevention is up to date.

Is my dog missing nutrients if they eat grass?

Probably not, if you're feeding quality commercial dog food. Modern dog foods are nutritionally complete. However, if you're concerned, consult your veterinarian about your dog's diet.

My dog eats grass and then vomits - is this normal?

Occasional vomiting after eating grass is normal and may be intentional - dogs may eat grass to relieve stomach discomfort. However, if vomiting occurs frequently (weekly or more), consult your vet as it could indicate an underlying issue.

When to See a Vet in Mauritius

If your dog's grass-eating behavior concerns you or is accompanied by other symptoms, consult a veterinarian. Find qualified vets in your area:

Key Takeaways

Grass-eating is normal behavior for most dogs
Usually harmless if grass is untreated and clean
Can indicate digestive upset, boredom, or simply taste preference
Avoid treated lawns and areas with toxic plants
Watch for obsessive behavior or frequent vomiting
Consult a vet if behavior changes suddenly or is accompanied by other symptoms