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Vegetables
Can Rabbits Eat Onions?
TOXIC - Do not feed
Quick Answer
No, onions is toxic to rabbits and should never be fed to them. All onions (raw, cooked, powder) are toxic to pets and can cause anemia.
Emergency Warning
If your rabbit has eaten onions, contact your veterinarian or Pet Poison Control (888-426-4435) immediately. Do not wait for symptoms.
Reviewed by Clawmate Vet Team•Updated February 2026
🐰Specifically for Rabbits
Onions are toxic to rabbits. They cause hemolytic anemia by damaging red blood cells.
The Full Story
Onions contain N-propyl disulfide, which damages red blood cells, causing hemolytic anemia. All forms are dangerous: raw, cooked, powdered, or dehydrated. Garlic, leeks, shallots, and chives are also in the allium family and similarly toxic. Cats are especially sensitive.
⚠️ Important Warnings
- Avoid all forms of onion
- Check labels for onion powder
- Symptoms may be delayed 3-5 days
- Garlic is also toxic
Frequently Asked Questions
Can rabbits eat onions?▼
TOXIC - Do not feed. All onions (raw, cooked, powder) are toxic to pets and can cause anemia. Onions are toxic to rabbits. They cause hemolytic anemia by damaging red blood cells.
Is onions safe for rabbits?▼
Onions contain N-propyl disulfide, which damages red blood cells, causing hemolytic anemia. All forms are dangerous: raw, cooked, powdered, or dehydrated. Garlic, leeks, shallots, and chives are also in the allium family and similarly toxic. Cats are especially sensitive.
What should I do if my rabbit ate onions?▼
Contact your veterinarian or Pet Poison Control (888-426-4435) immediately. Do not wait for symptoms to appear. Avoid all forms of onion Check labels for onion powder Symptoms may be delayed 3-5 days Garlic is also toxic
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☠️ Toxins Dangerous to Rabbits🩺 Rabbits Symptom Checker🥗 Rabbits Nutrition Guide💊 Rabbits Health Conditions
Trusted sources: ASPCA Poison Control · Pet Poison Helpline · AVMA Pet Owners