Can Cats Eat Arugula?

⚠️ In Moderation

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just ate something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.

A small nibble is okay, but arugula’s peppery compounds can upset a cat’s stomach.

Why it’s a sometimes-food

Arugula contains isothiocyanates, the mustard-oil compounds that give it its bite, which irritate a cat’s gut in larger amounts. Some cats are oddly drawn to bitter greens and graze more than their stomachs tolerate, so portion control matters.

How to serve it safely

Offer one small leaf rarely; remove it if your cat starts grazing heavily.

Warning signs to watch for

Drooling, vomiting or diarrhea after larger amounts.

When to call the vet

Call your vet if vomiting persists or the cat refuses food afterward.

Common questions

Why would a cat eat spicy-tasting greens?

Cats lack the human preference map — some enjoy bitter chewing, especially for hairball relief. Plain lettuce or cat grass is a gentler option.

More foods for cats

Salmon✅ SafeYes, when fully cooked and unseasoned. Salmon is a nutritious fish most cats enjoy.Tuna⚠️ In ModerationOccasional small amounts only — tuna should be a treat, never a meal.Cow’s Milk🚫 Not RecommendedBetter to skip it. Most adult cats are lactose intolerant and milk gives them stomach upset.Garlic☠️ ToxicNo. Garlic is poisonous to cats — even more potent per gram than onion.Cooked Eggs✅ SafeYes, fully cooked and plain. Eggs are a protein-rich treat cats usually enjoy.Cheese⚠️ In ModerationSmall bites are usually fine, but many cats cannot digest dairy well.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away.