Can dogs eat lettuce?

Health and Wellbeing

We humans might feel obligated to eat salads and try to be healthy, or maybe even opt for one as a light lunch on a hot day. And if you have a dog anything like my spaniel, they might munch on grass and leaves on their walks and leave you wondering if they would fancy a salad sometime too.

While we might think lettuce is a refreshing and healthy base for a meal, is it safe for our furry friends to eat too?

Can dogs eat lettuce?

Any owner looking for a natural, low-calorie, or low-fat snack for their fur-iend has probably considered offering their pooch the contents of the salad drawer, be it lettuce, tomatoespeppers, or cucumber. So, “lettuce” take a moment to investigate if dogs can eat lettuce, and why you might want to include some of these leafy greens in their dinner.

CAN DOGS EAT LETTUCE?

Yes, dogs can eat lettuce. This leafy vegetable doesn’t really pack much of a nutritional punch compared to other vegetables, but it is perfectly safe for dogs to eat in moderation. Lettuce is non-toxic and there’s nothing inside those leaves that could be considered “bad” for your dog either, such as excess sugar, sodium, or fat.

Lettuce is mostly water after all, so it’s just a pretty plain and safe snack, as long as you serve it without seasonings or dressing. The extra water in those luscious leaves could help to boost your pooch’s hydration levels, and it will provide them with a few nutrients. Although they would have to eat a ton of salad for it to really benefit their health, and at that point, they would have eaten so much it would probably give them tummy ache!

Since lettuce is safe for dogs and hasn’t got many calories (or anything) inside, it can make a good filling food to add a little bulk to your dog’s dinner and make them fill their belly without increasing their calorie intake. If your pooch needs to lose a little weight, or always seems hungry, you can try using a little plain, shredded lettuce as a topper for their dinner to help fill them up.

Just make sure your lettuce is washed and chopped before you feed it to your dog so there are no pesticides or nasties lurking in the leaves and your dog won’t be at risk of choking. Any lettuce your dog eats should also be served plain, but don’t worry, it will still be perfectly palatable for your pup.

WHAT KIND OF LETTUCE CAN DOGS EAT?

There are several different kinds of lettuce dogs can eat. Some of the varieties that are safe for dogs are:

  • Romaine
  • Iceberg
  • Rocket
  • Little gem

A little like cabbage, dogs can eat most of the kinds of green-leaf lettuce that are safe for humans to eat. It’s more important that the lettuce you offer your dog has been thoroughly washed and is kept plain and cut into small pieces.

Different kinds of lettuce do have different nutritional properties. For instance, Romaine lettuce is a little more nutritionally dense than other kinds and has higher concentrations of vitamin A, C and K.

IS LETTUCE GOOD FOR DOGS?

Lettuce certainly isn’t bad for dogs to eat from time to time. However, when compared to other vegetables, it isn’t the most nourishing veggie out there either. This is because lettuce is around 90% water, so the actual nutritional content is quite low. There are some goodies in the greenery though. For instance, iceberg lettuce has a fair bit of fibre, and vitamin A and K.

Vitamin A has antioxidant properties which help to prevent cell damage and inflammation, as well as being generally super at keeping your pup’s cells healthy and functioning normally. It’s also excellent for eye health, helping to protect your pooch’s vision. However, dogs can have too much vitamin A in their diet, so don’t go overboard when offering them lettuce and keep feeding them in moderation.

As for vitamin K, it’s important for maintaining the blood’s ability to clot properly. So if your pup has plenty of vitamin K and is ever in a scrape or scratches themselves on some undergrowth, it will scab and heal like it’s meant to.

Perhaps unsurprisingly, lettuce is great for adding roughage to your dog’s diet. Roughage, or dietary fibre, is necessary to keep your dog’s bowel movement’s regular and it helps to maintain a healthy gut.

All in all, lettuce is perfectly safe for dogs to eat, it has some benefits, and it doesn’t contain anything that is “bad” for dogs. So as far as snacks go, lettuce is a pretty good option. And although we find lettuce quite plain on its own, it is perfectly tasty for dogs who enjoy the crunch. Plus, your pup might find lettuce far more flavourful than we do because dogs have taste buds that can actually detect flavour from water, something we humans haven’t got!

CAN LETTUCE MAKE DOGS SICK?

Just like many vegetables, lettuce can make dogs sick if they eat too much. If your dog eats too much lettuce it can sit in their gut and make them feel pretty sluggish, and might lead to flatulence. The fibre in lettuce can also cause diarrhoea or constipation if your dog eats too much of the stuff.

However, lettuce itself is not likely to make your dog sick. Anything you add to season or flavour your salad could make your dog unwell though, and some lettuce can be contaminated with harmful pathogens and pose a health risk for you and your pooch.

As you’re probably aware, lettuce and bagged salads are sometimes recalled because they have been found to contain harmful bacteria like E.Coli or Listeria. Most of the time, your lettuce is unaffected and safe to eat. Unless a recall has been issued for the specific batch and brand of lettuce you use, you should be perfectly safe.

It is still important to wash your lettuce thoroughly before offering it to your pup to make sure any dirt and pesticides are cleaned away. Traces of pesticides could make your dog unwell, but it is a low risk and you can effectively prevent problems by buying organic produce or just thoroughly washing your veg before eating it.

Finally, although lettuce is safe for dogs to eat, other ingredients in your salad might not be. Many salad dressings are unhealthy for dogs as they are high in fat, oil, sugar, or salt. Some salads may contain dried fruits or nuts, and some of these ingredients can be toxic to pets such as sultanas and raisins. Other common salad ingredients like onion and garlic are also toxic to dogs. With this in mind, don’t slide some of your salad off your plate and into Fido’s bowl. Instead, just offer them some washed and chopped plain lettuce.

RECAP: CAN DOGS EAT LETTUCE?

Yes, dogs can definitely eat lettuce. This lush leafy vegetable is mostly made of water and is very low in sodium, fat, and calories so it’s certainly not bad for your furry friend.

Because lettuce is mostly water, it isn’t packed with nutrients and probably won’t boost your pup’s health a whole lot, so why not try feeding something that will have tons of health benefits for your dog instead? Pure is complete and balanced nutrition, nourishing your dog from the inside out. Bursting with nutrients and flavour, Pure is the perfect way to get your dog on track to better bellies, better stools, better skin and better coats.

Dr Andrew Miller BVSc MRCVS

Written by: Dr Andrew Miller MRCVS

Andy graduated from Bristol University in 2010 and sees nutrition as a foundation for our pet's wellbeing and takes a common-sense approach. We are what we eat, and it shouldn't be any different for our pets.