Can Dogs Eat Lettuce?

Yes, safe

Lettuce is safe for dogs when served plain and in a sensible amount.

Is lettuce safe for dogs?

Lettuce is a leafy salad vegetable that is mostly water, with iceberg being the least nutrient-dense variety. Plain lettuce is safe for dogs and low in calories, though it offers little nutritional value.

How to serve lettuce to your dog

Wash it thoroughly and chop it into small pieces
Serve it plain, with no dressing
Use it as an occasional low-calorie extra, not a meal

What to avoid

Lettuce with dressing, which may contain onion, garlic or a lot of salt
Large amounts, which can cause mild stomach upset

How much lettuce can my dog have?

Treats, including lettuce, should stay under about 10% of your dog's daily calories. As a rough starting point, small dogs can have 1 to 2 bite-size pieces, medium dogs 2 to 4, and large dogs a small handful. Introduce it slowly and do not make it a daily habit.

Signs your dog may be having a problem

Watch for vomiting, diarrhea, drooling, pawing at the mouth, loss of appetite, tiredness, a swollen or painful belly, or trouble breathing. Contact your vet right away if you see these signs, or if your dog has eaten any of the parts listed above.

Emergency? Call your vet or an animal poison hotline straight away: ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661 (US numbers, a consultation fee may apply).

Frequently asked questions

Can puppies eat lettuce?

Young animals have more sensitive digestive systems and a carefully balanced diet, so check with your vet before adding lettuce. If you get the go-ahead, start with an even smaller amount than an adult would get.

What if my dog ate too much lettuce?

The most common result is an upset stomach with vomiting or diarrhea. Offer water, skip further treats, and call your vet if symptoms are severe or last more than a day, or if your dog ate any of the parts listed under "What to avoid".

How often can my dog have lettuce?

Treat it as an occasional extra rather than a daily food. Once or twice a week at most is a sensible starting point for a healthy adult dog, and less for small ones.