Vegetables
Can dogs and cats eat lettuce?
Short answer on lettuce: safe for dogs, safe only with care for cats. See what to watch for and the veterinary sources behind each answer.
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. Check the bottom line, signs to watch, and serving guidance for your pet below.
- 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
Questions owners ask about lettuce
Can dogs eat lettuce?
Romaine, arugula, and iceberg lettuce are all safe, hydrating, low-calorie snacks for dogs.
How much lettuce can I give my dog?
a few shredded leaves as an occasional treat. Introduce any new food gradually and watch for stomach upset.
Can cats eat lettuce?
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.
Is lettuce safe for every cat?
Not necessarily. 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. Ask your veterinarian first if your cat has an existing health condition or you are unsure.
What symptoms should I watch for with lettuce and cats?
diarrhea, particularly with iceberg lettuce. If you notice any of these, contact your veterinarian.
This page is for informational purposes only and is not veterinary advice. Always consult your veterinarian about your pet's diet and health.
More vegetables
Read our methodology for how every verdict is sourced and reviewed.