Can Dogs Eat Cucumbers?

Yes, dogs can safely eat cucumber, as long as it’s fresh, plain, and served in moderation.  

Regular garden cucumbers are a safe and healthy snack for most dogs. English cucumbers (the long, seedless kind) are also a great option, especially since they’re easier to digest and have thinner skin. 

Steer clear of pickled cucumbers, though. Pickles often contain added salt, vinegar, spices, and sometimes garlic or onion—all of which can be harmful to dogs. Similarly, avoid flavored or seasoned cucumber snacks. 

When prepared properly and fed in moderation, cucumber can be a hydrating, low-calorie treat that supports your dog’s overall health. Here’s how: 

• It’s 95% water, making it a very hydrating snack. 
• It’s a low-calorie treat option. One cup of cucumber has less than half the calories of a typical biscuit dog treat. 
• It’s low in sugar, making it an excellent treat option for dogs with diabetes. 
• It’s an excellent source of vitamins K, B, and C, as well as potassium and magnesium. These nutrients help promote a strong immune system, healthy muscles and bones, and proper energy metabolism, all of which are important for maintaining your dog’s vitality and well-being. 

But is cucumber safe for dogs? While it can be a healthy snack, there are a few potential risks to keep in mind when feeding it to your dog:  

• Too much cucumber can cause digestive upset, like diarrhea or stomach discomfort, just like any new food. 
• The tough skin and seeds may be hard for some dogs to digest and could potentially cause choking or intestinal blockage, especially in smaller breeds. 
• In rare cases, dogs may be sensitive or allergic to cucumbers, which could lead to itching, swelling, or other allergic reactions. 

Cucumber should be considered a treat, not a dietary staple. And all treats combined should make up no more than 10% of your dog’s diet. The rest should come from a complete and balanced dog food. 

As with any “human” food, you should always consult with your vet before serving cucumber to your dog to determine the right portion size based on your dog’s health status. That said, here are general recommended serving sizes based on your dog’s weight. 

While dogs and cucumber generally go well together, it’s important to prepare them properly to avoid any digestive issues. Dr. Robinson advises taking the following precautions when feeding it to your dog: 

• Wash first. Store-bought cucumbers are coated with a wax layer to improve their shelf life. While harmless, the wax can sometimes trap bacteria. Even though you will peel the cucumber, this is still an important step. 
• Peel the skin. While cucumber skin is not harmful to dogs, some pups, especially those with a sensitive stomach, may find thick cucumber skin difficult to digest. 
• Remove the seeds. Cucumber seeds do not contain any toxins that are harmful to dogs, but they may cause an upset tummy if your dog has a sensitive digestive system. Removing them can help minimize the risk of gas or upset stomach. 
• Cut into bite-size pieces. Large pieces can pose a risk of choking or intestinal blockage. Cut cucumber into thin rounds or small chunks, especially for puppies or small dogs. Never feed your dog a cucumber whole. 
• Serve plain. Skip any seasoning or dressing. Dogs don’t need the extras, and some ingredients (like garlic or onion powder) can be harmful. 

Once you’ve safely prepped the cucumber, you can serve it several ways: 

• Straight up: Raw cucumber has the crunch most dogs love.  
• As a pureed, frozen treat: You can also freeze pureed cucumber (on a lick mat such as the Frisco Silicone Lick Mat, for example) to give your pup an extra challenge, especially if they get bored easily. This is an extra-nice treat on a hot summer day. 

• In a smoothie: You can mix cucumbers with other dog-safe fruits and veggies for a refreshing treat. 
• Mixed in with their regular food: Try hiding the cucumber under your dog’s regular kibble or hide it in a puzzle toy, like the Brightkins Brain Teaser, to make them work for this yummy treat. 

There aren’t many commercial dog foods or treats made with cucumber, but the good news is that it’s super easy to whip up a treat at home. The Farmers’ Market Green Smoothie Bowl for Dogs is one of our favorite DIY recipes. 

If your dog managed to eat too many cucumber slices, don’t panic—but do keep an eye out for signs of digestive upset. Too much cucumber can lead to symptoms like: 

• Vomiting 
• Diarrhea or loose stools 
• Excessive gas 
• Abdominal discomfort or bloating 
• Decreased appetite 

In most cases, these symptoms will pass on their own within a day. During that time, make sure your dog has access to fresh water and monitor them closely for any changes in behavior.  

If the symptoms are severe, last longer than 24 hours, or your dog seems especially lethargic or uncomfortable, call your veterinarian. 

Q: Can puppies eat cucumber? 

A: Yes, puppies over 8 weeks old can eat cucumber in small amounts but avoid giving them too much because their digestive systems are still developing. And make sure to cut cucumber into small pieces to prevent choking. 

Q: Can dogs eat cucumber skin?  

A: Yes and no. While cucumber skin is not harmful to dogs, some pups, especially those with a sensitive stomach, may find it difficult to digest. Try a little bit to see how your pet reacts. 

Q: Can dogs eat cucumbers raw? 

A: Yes! Eating it raw is a great way for your dog to enjoy cucumber. Just make sure to wash it first. 

Q: Can dogs eat cucumbers with seeds? 

A: Yes, dogs can safely eat cucumbers with seeds, which are soft and non-toxic. However, if your dog has a sensitive stomach, you might want to remove the seeds to reduce the risk of digestive upset.