Vegetables
Can dogs and cats eat lettuce?
Compare the dog and cat answers together, then open the full guide for the pet you are asking about.
One food, two pets
What changes between dogs and cats?
The verdict changes by species: safe for dogs and caution for cats.
The two answers are not interchangeable. Compare the bottom line, signs to watch, and serving guidance below, then use the full guide for your pet.
- Safety label differs
- Bottom line differs
- Signs to watch differs
- Serving guidance differs
Lettuce safety for dogs
Romaine, arugula, and iceberg lettuce are all safe, hydrating, low-calorie snacks for dogs.
Safe serving: a few shredded leaves as an occasional treat
Lettuce safety for cats
Most lettuce is fine for cats in small amounts, but iceberg lettuce specifically can cause loose stools in some cats, so watch for GI upset.
Watch for
- diarrhea, particularly with iceberg lettuce
This page is for informational purposes only and is not veterinary advice. Always consult your veterinarian about your pet's diet and health.
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Read our methodology for how every verdict is sourced and reviewed.