Is Rhubarb Toxic to Great Danes?

Quick Answer: YES - Rhubarb is toxic to Great Danes and requires veterinary attention.

Great Dane Specific Note: Giant breed, prone to bloat

Toxicity Severity: Medium

Symptoms of Rhubarb Poisoning in Great Danes

If your Great Dane has eaten rhubarb, watch for these symptoms:

Vomiting, diarrhea, tremors, kidney failure

Timeline: Symptoms typically appear within 1 to 6 hours of ingestion.

What Makes Rhubarb Toxic?

The toxic compound in rhubarb is Oxalates.

Great Dane-Specific Considerations

⚠️ Special Warning for Giant Breeds

Giant breeds are at higher risk of bloat. Avoid large meals and foods that can cause gas or stomach torsion.

Great Danes are at higher risk of bloat. If your dog has eaten rhubarb, watch carefully for signs of bloat in addition to other symptoms.

What to Do If Your Great Dane Ate Rhubarb

Immediate Steps:

1. Remove the source - Get any remaining rhubarb away from your dog
2. Call your veterinarian - Even if symptoms seem mild, professional guidance is essential
3. Do NOT induce vomiting unless specifically instructed by your veterinarian
4. Save the packaging - Bring any packaging or remnants to help identify amount ingested

When to Call Emergency Vet:

• Within 1 hour of ingestion
• If any symptoms develop
• If you’re unsure how much was eaten

Treatment for Rhubarb Poisoning

Treatment varies based on the type of toxin and severity:

Common treatments may include:

• Induced vomiting (if caught early and safe to do so)
• Activated charcoal to absorb toxins
• IV fluids to support kidney function
• Medications to control symptoms
• Hospitalization for monitoring

Recovery time: Depends on severity and how quickly treatment was started. Most dogs recover with prompt treatment.

Prevention: Keeping Your Great Dane Safe

Storage Tips:

• Store rhubarb in sealed containers out of reach
• Never leave food unattended on counters or tables
• Use child-proof latches on low cabinets
• Educate family members and visitors about toxic foods

Training Tips:

• Teach “leave it” and “drop it” commands
• Reward your dog for ignoring food on the ground
• Supervise your dog during meals and food preparation
• Keep trash cans secured

Safe Alternatives:

Looking for safe treats for your Great Dane? Consider:

• Carrots
• Green beans
• Apple slices (without seeds)
• Plain cooked chicken
• Commercial dog treats

Other Foods Toxic to Great Danes

Great Danes should avoid these common toxic foods:

• Chocolate (High severity)
• Grapes and Raisins (High severity)
• Onions and Garlic (High severity)
• Xylitol (Artificial Sweetener) (High severity)
• Alcohol (High severity)
• Caffeine (High severity)
• Macadamia Nuts (High severity)
• Avocado (Medium severity)
• Cooked Bones (High severity)
• Dairy Products (Low severity)

Learn more: Complete list of foods toxic to dogs

Bottom Line

Rhubarb is toxic to Great Danes and can cause serious health problems. Avoid feeding rhubarb to your dog. If ingestion occurs, contact your veterinarian for guidance.

Frequently Asked Questions

How much Rhubarb is toxic to a Great Dane?

Toxicity depends on the amount ingested and your dog’s size. Moderate amounts can cause symptoms. Always consult your veterinarian if you’re concerned.

Can Great Danes build tolerance to Rhubarb?

No. Dogs do not build tolerance to toxic foods. Repeated exposure can actually increase the risk of serious health problems.

What if my Great Dane ate Rhubarb but seems fine?

Monitor closely and contact your vet. Symptoms may develop over time. It’s better to be safe than sorry.

Are there any safe amounts of Rhubarb for Great Danes?

No. It’s best to avoid rhubarb entirely.

Last updated: April 08, 2026

Disclaimer: This information is for educational purposes only and is not a substitute for professional veterinary advice. If your dog has ingested a toxic substance, contact your veterinarian immediately.