🍎 Vegetables

Onions

🚫 Toxic for Cats

Danger — seek vet help

🐶

For Dogs

🚫 Toxic

🐱

For Cats

🚫 Toxic

View dog safety info →

⚠️ Symptoms to Watch For

Lethargy, weakness, pale gums, red or brown urine

📋 What You Need to Know

Onions contain N-propyl disulfide which damages red blood cells, causing hemolytic anemia. All forms — raw, cooked, powdered, dehydrated — are dangerous. Cats are especially sensitive. Toxicity is cumulative.

Source: ASPCA Animal Poison Control

🚨 If your cat ingested this, act fast

Call ASPCA Poison Control: (888) 426-4435 or your emergency vet immediately.

❓ Frequently Asked Questions

Is onions safe for cats?

Onions is considered TOXIC for cats. Onions contain N-propyl disulfide which damages red blood cells, causing hemolytic anemia. All forms — raw, cooked, powdered, dehydrated — are dangerous. Cats are especially sensitive. Toxicity is cumulative.

What are the symptoms if my cat eats onions?

Symptoms may include: Lethargy, weakness, pale gums, red or brown urine.

What should I do if my cat eats onions?

Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Do not induce vomiting unless instructed by a professional.