How to Stop Dog from Eating Grass

Almost every dog eats grass at some point — and most of the time, it's completely harmless. But if your dog is eating grass obsessively, vomiting afterward regularly, or consuming grass treated with pesticides or herbicides, it becomes a concern worth addressing. Here's what you need to know about grass eating and when and how to stop it.

Is Grass Eating Normal?

Yes — grass eating is extremely common in dogs. Studies suggest that the majority of dogs eat grass regularly, and most do not vomit afterward. It's considered a normal behavior in most cases. However, if your dog is eating grass compulsively, vomiting every time, or eating grass from treated lawns, it's worth investigating further.

What You'll Need

• Treats and a treat pouch: Redirect your dog away from grass with high-value rewards. A treat pouch with magnetic closure keeps rewards ready for outdoor training sessions.
• A training clicker: A dog training clicker marks the moment your dog leaves grass alone and redirects to you.
• A snuffle mat: An AWOOF snuffle mat satisfies your dog's foraging instinct indoors with safe, appropriate sniffing and searching activity.

Why Dogs Eat Grass

• Instinct and foraging behavior: Dogs are omnivores with a natural instinct to forage — grass is part of that
• Digestive upset: Some dogs eat grass to induce vomiting when their stomach is upset
• Nutritional need: Dogs may seek fiber or micronutrients from grass
• Boredom: Grass eating can be a boredom behavior in under-stimulated dogs
• It tastes good: Some dogs simply enjoy the taste and texture of fresh grass

When to See a Vet

See your vet if your dog eats grass and vomits every time, has suddenly started eating grass obsessively, shows other signs of digestive distress, or is eating grass from lawns that may be treated with pesticides or herbicides.

Step-by-Step: How to Reduce Grass Eating

Step 1: Assess Whether It's a Problem

If your dog occasionally nibbles grass, doesn't vomit, and is otherwise healthy, it may not need to be stopped. Focus your energy on grass eating that's compulsive, causes vomiting, or happens on treated lawns.

Step 2: Ensure a High-Quality Diet

If your dog is eating grass for nutritional reasons, review their diet. A high-quality, complete dog food with adequate fiber may reduce grass-seeking behavior. Talk to your vet about whether a dietary adjustment is appropriate.

Step 3: Teach "Leave It" for Grass

Practice leave it specifically with grass on walks and in the yard. Say "leave it" when your dog moves toward grass, click when they back off, and reward with a high-value treat. Build this into every outdoor session.

Step 4: Redirect to a Snuffle Mat

If your dog eats grass out of foraging instinct or boredom, a snuffle mat provides a safe, appropriate outlet for the same behavior indoors. Hide kibble or treats in the mat and let your dog sniff and forage to their heart's content.

Step 5: Increase Exercise and Mental Stimulation

Boredom-driven grass eating responds well to more exercise and enrichment. Add a training session, a longer walk, or a puzzle toy to your daily routine. A mentally and physically satisfied dog forages less out of boredom.

Step 6: Manage Access to Treated Lawns

If the primary concern is pesticide or herbicide exposure, keep your dog away from treated lawns entirely. Stick to known-safe areas for outdoor time and rinse your dog's paws after walks in areas where lawn treatment is common.

How Long Does It Take?

Leave it training for grass takes 1–2 weeks to establish. Reducing compulsive grass eating through dietary changes and enrichment takes 2–4 weeks. If grass eating is medically driven, resolving the underlying issue may stop it immediately.

Final Thoughts

Grass eating is usually harmless and normal. Focus on stopping it only when it's compulsive, causes vomiting, or happens on treated lawns. Use leave it training, a snuffle mat for foraging enrichment, and a high-quality diet to address the behavior. When in doubt, check with your vet.