Can Hamsters Eat Cucumber?

Can Hamsters Eat Cucumber?
Risks and Benefits You Need to Know

Can Hamsters Eat Cucumber

October 20, 2021

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Can you give hamsters cucumber? It’s a question many hamster owners are asking. After all, what’s not to love about cucumbers?

They are readily available in every grocery store, easy to grow in backyard gardens, and taste pretty good. It seems like this is a no-brainer because what could be wrong with giving your hammy a refreshing treat?

Although it may surprise you, feeding cucumber to your pet does come with a few risks you should know about. Let’s dive in and learn about whether or not these make good snacks for hamsters.

Can Hamsters Eat Cucumber?

Yes, hamsters can eat cucumber. It can be a hydrating low-calorie treat with important nutrients and minerals like copper, phosphorus, potassium, magnesium, and vitamins K, B, and C. Still, you should follow our feeding guidelines, as eating too much cucumber may lead to diarrhea and dehydration in hamsters.

Although hamsters love their treats, 90% of their daily food intake should be high-quality hamster food that matches their dietary requirements. Only 10% of their food should be other snacks that may include grains, vegetables, fruits, and meats.

As long as properly used, cucumbers can be a tasty and healthy addition to every hamster’s diet.
– Dr. Ivana Crnec, DVM

Hammies may love cucumber and happily nibble away when given a piece, but too much cucumber may lead to health problems, and sticking to appropriate portions is key. Before feeding cucumber to your hamster, you should know the health risks and signs to watch out for. But first, let’s find out about the benefits this refreshing veggie offers.

Health Benefits: Are Cucumbers Good for Hamsters?

The answer is yes! Cucumber contains lots of necessary healthy minerals and vitamins- and your hamster benefits from eating cucumber because of this.

Let’s take a look at the health and nutrition benefits of cucumber.

A Low-Calorie Treat

Hamsters are small critters and don’t need a lot of calories each day to stay healthy and active. Feeding them too many calories could result in obesity, so find treats that give them enrichment without breaking the calorie bank, such as cucumbers.

Since cucumbers provide very few calories, you won’t have to worry about weight gain. Therefore, cucumbers are especially suitable for hammies that are a bit on the chubby side and need to lose some weight.

Related reading: Good Hamster Treats – Vet-Approved Choices


Helps with Hydration

One great thing about cucumbers is that they are mostly made of water. This ensures your hamster gets adequate hydration when they eat some, and cucumbers can be an excellent snack on a hot summer day.

Of course, you should always make sure there is unlimited water available for the hamster in the form of their water bottle, even when serving refreshing snacks.

Constipation Relief

If your hamster is averse to drinking water, which we know can help with constipation, have them eat a few cucumber slices. It can help get things moving in the right direction and bring your hamster relief.

Vitamins and Minerals 

Although mostly water, cucumbers are packed with many vitamins and minerals, including magnesium, manganese, potassium, copper, iron, silica, and C, K, A, and B vitamins.

As you can see, there are plenty of great vitamins and minerals in this veggie, which makes it a healthy snack for a hamster to enjoy as part of a balanced diet.

However, the key thing to remember is that cucumbers should be fed in small amounts, and they should not be relied upon as a staple food. They have SOME health benefits but do not contain ALL the necessary vitamins and minerals for a hamster.

Is Cucumber Good for Hamsters? 

Yes, cucumber is good for hamsters, but only when fed in moderation. Although cucumber is a low-calorie treat with lots of water, vitamins, and minerals, feeding too much cucumber is not good as it may lead to health problems like diarrhea.

Hamsters are allowed cucumber, but only in small portions and as a small part of an otherwise healthy and balanced diet that fills their dietary requirements.

Health Risks: Are Cucumbers Bad for Hamsters?

So, if cucumbers are not entirely a good thing, what are the problems you should know about and signs that you can look out for? Here’s what you need to know.


Cucumbers are mostly made of water, so consuming too much of this veggie could leave your hamster with diarrhea. Because hamsters are not used to food that is so watery, their digestive system can’t handle too much of it, leading to soft stool or diarrhea.

The worst-case scenario is that a diet too heavy in watery fruits and veggies may cause your hamster diarrhea, which leads to a condition called wet tail that can be fatal if left untreated.

To avoid tummy problems, stick to small portions and don’t feed watery foods like cucumber or watermelon every day.


As a result of having diarrhea, your hamster can become dehydrated, which then can be fatal.

So although cucumber contains a lot of water and is considered a very hydrating snack, in the end, it may cause the exact opposite and leave your hammy severely dehydrated.

Inadequate Nutrition

Cucumbers are healthy and contain many essential minerals and vitamins. Still, they lack vital nutrients found in commercial hamster foods and pellets. Cucumbers are great, but they simply don’t have what hamsters need to lead healthy lives.

To hamsters, cucumbers are a treat, not the whole meal.
– Dr. Ivana Crnec, DVM

Because cucumbers only provide some of the nutrients you hammy needs, it should only make up a very small part of the overall diet. It’s important that 90% of your hamster’s daily food intake comes from pellets or a suitable seed mix, and the rest is made up of a variety of veggies, fruits, meat, and grains.

Choking hazard

Sometimes hamsters get excited about new foods and quickly gobble up anything you offer them or hide it in their cheek pouches. Although the texture of cucumber is not tough or stringy, the skin may be a bit hard to chew sometimes.

Therefore, it’s better to cut up the cucumber into small pieces your hamster can easily fit in their mouth.

Rotten food may make your hamster sick

Take particular care when giving cucumbers because they are very likely to rot if left in the cage for more than a day. Hamsters often hide away some of their favorite foods, and because cucumber contains a lot of water, it can go bad quickly.

To avoid problems, have your hamster’s bedding checked for hidden food on a daily basis. Sitting on rotten food material and wet bedding can be unhygienic and cause health issues like wet tail.

Is Cucumber Safe for Hamsters?

Yes, cucumber is safe for hamsters. The vegetable itself nor the skin or seeds are in any way toxic or harmful when cucumber is fed in moderation. Still, portion control is important to avoid any health issues.

Owners of hamsters must be very careful about the amount of cucumber they give to their small pet. Cucumber tastes very good to hamsters, and they will eat as much as they possibly can fit in. As a result, you have to be mindful of the amount you give them.

Remember, this food is very watery. To us humans, eating a cucumber doesn’t make us feel like we drank a ton of water. But small hamsters really feel the effects of the cucumber when taken in large amounts.

Can Cucumber Make My Hamster Sick?

Yes, cucumber can make your hamster sick if fed in excess. Your hamster could end up with diarrhea or watery stool, and if cucumber replaces other parts of a balanced diet, it could lead to malnutrition and related health problems.

Watery foods are not something hamsters can handle very well, so too much cucumber often leads to diarrhea and dehydration as a result of it.

Because cucumber is yummy, your hamster will probably love it and try to eat as much as they can. As the responsible pet parent, it’s up to you to ensure your hammy is not eating more cucumber than it should.

If your pet fills up its tummy with cucumber, it might not be interested in other foods that ensure a nutritionally sound diet. This may lead to deficiencies in important nutrients and malnutrition.

So, yes, cucumber can make hamsters sick, although it is not toxic or harmful to them in small amounts.

Can Cucumber Kill Hamsters? 

No, cucumber cannot kill your hamster if it is not fed in excess. Cucumber is not toxic to hamsters, and it’s a safe food for your pet. Still, too much of it could lead to health issues that might even result in death. Follow our guidelines to ensure you’re feeding cucumber safely.

The problem with cucumber is that it contains 96% of water. Hamsters need water, but watery foods will easily make them consume more than they actually need. This leads to watery stool and diarrhea, which can escalate to a possibly fatal condition called wet tail.

The cucumber itself will not kill your hamster. But if your hamster were to eat too much of it, they might develop diarrhea or become malnourished, which both could have severe consequences.

Feeding Guidelines: Cucumbers for Hamsters

So now we know the benefits and risks of feeding cucumber to your hammy. We also know that you should not feed too much of it to avoid the risks we have mentioned. But how much is too much? Let’s find out.

How Much Cucumber Can A Hamster Eat? 

Depending on the size of your hamster – Syrians and dwarf hamsters are quite different size-wise! – a suitable portion would be one or two thin slices at the most.

Feed no more than a thin slice or two at a time.

As with any other new food, all introductions should be slow and gradual. Start by giving a particularly small amount and then gradually increase the portion size until reaching the recommended serving.

Make sure not to overfeed in terms of portion size and frequency.
– Dr. Ivana Crnec, DVM

Since all hamsters are different in how they handle foods that have a high water content, you should start with a small piece if your hamster has never eaten cucumber before. Monitor your pet for any signs of soft and watery stool after feeding him some cucumber and cut down on the serving size if you notice any symptoms.

Small servings will ensure he gets to enjoy a treat but does not miss out on valuable nutrients found in commercial hamster pellets after filling up his tummy with what’s mostly water.

How Often Can A Hamster Eat Cucumber?

Hamsters can eat cucumber once or twice a week.

Although most hamsters are fine with eating cucumber a couple of times a week, you should always check your pet for signs of diarrhea and cut back on watery foods if you see any.

Also, make sure that you’re not feeding too many such foods as a part of the overall diet. Feeding both watermelon and cucumber twice a week is too much, so you need to look at the bigger picture.

Can Hamsters Eat Too Much Cucumber? 

The answer is yes. Too much of a good thing can lead your hamster to feel pretty bad. It is important to remember that cucumber is not a staple food for hamsters. It is loaded with water, which can lead to diarrhea or watery stool.

It contains SOME helpful nutrients for hamsters, but not all of them. For this reason, it cannot be fed as an everyday meal.

The bottom line here is that yes, hamsters can eat too much of it, so make sure you are offering small amounts of this veggie only twice a week max.

Can Hamsters Eat Cucumber Skin? 

The skin itself will not harm a hamster, and it’s completely edible.

However, it is still advised that pet owners remove the skin if the cucumber is not organic. This is because the skin could contain harmful pesticides or chemicals. Hamsters are small little creatures, so even small amounts of toxic substances may harm them. As a result, it’s best to trim the skin off to be safe.

Can Hamsters Eat Cucumber Seeds? 

Yes, hamsters can eat cucumber seeds. The seeds are quite soft and in no way toxic to your hamster. Sometimes hamster owners remove the center with the seeds because it’s the most watery part, and excess water may lead to diarrhea. Still, hamsters can eat the seeds, and they are not harmful.

Nutrition Facts

Cucumbers consist of 96% water. It certainly helps both humans and hamsters stay hydrated in that regard. Although it’s mostly water, it does contain many useful nutrients. Let’s have a look.

A 100g of cucumber contains

  • Calories 15 kcal
  • Total Fat 0.11g
  • Sodium 2mg
  • Total Carbohydrate 3.63g
  • Dietary Fiber 0.5
  • Sugars 1.67g
  • Protein 0.65g
  • Calcium 16mg
  • Iron 0.28mg
  • Potassium 147mg
  • Vitamin A 5mcg
  • Vitamin C 2.8mg
  • Vitamin K 7.2 mg

As you can see, cucumbers are a low-calorie food with some very beneficial nutrients.

Vitamin C is necessary for hamsters to prevent scurvy and help them heal in the event of injury. If you don’t give your ham enough vitamin C, you could see them develop scurvy, which is essentially the loss of fur, lethargic behavior, weight loss, wobbly movements, and squeals when touched. A bit of broccoli or small amounts of fruit keeps this at bay, but a little cucumber will also help.

Vitamin K supports the reproductive health of your hamster. Peas, carrots, and spinach all contain Vitamin K. Oatmeal has it too, but many hams don’t care for it.

Antioxidants in Cucumber

Pet hamsters are prone to developing cancer. One of the greatest things about cucumber is that it contains antioxidants or molecules that thwart oxidation.

Oxidation is a chemical reaction that creates extremely reactive atoms with unpaired electrons we come to know as free radicals, says Healthline.

Accumulating too many of these free radicals may lead to a variety of chronic ailments. Oxidative stress has a connection to autoimmune, lung, heart, and cancer diseases as well.

As a result, allowing our hamsters the chance to enjoy small doses of fruits and veggies may help lower their risk of developing such ailments.

Bottom line: Can Hamsters Have Cucumber?

Do hamsters like cucumber? Absolutely! These little guys would eat it all day, every day if they could. It is refreshing and tastes great, after all.

However, moderation is key. Keep the servings minimal; 1-2 thin slices a couple of times a week is the max.

This way, your hamster gets to enjoy his occasional treat, and you can relax knowing they are filling up their bellies with more nourishing foods, high-quality hamster food being the most important one.

So, the bottom line? Cucumbers are great as a treat for hamsters in moderation.

Vet’s Comment

Pet stores offer readily available mixes (of different cereal seeds, peanuts, and sunflower seeds) formulated explicitly for hamsters. There are also commercially available pelleted foods for hamsters. However, to add some diversity to your hamster’s menu, it is advisable to offer a little fresh food now and then.

The fresh food can be a slice of juicy veggie like cucumber. As long as properly used, cucumbers can be a tasty and healthy addition to every hamster’s diet. Just make sure not to overfeed in terms of portion size and frequency. To hamsters, cucumbers are a treat, not the whole meal.

You can additionally sprinkle a bit of small-animal vitamin and mineral supplement on top of the cucumber treat. It is best to have your hamster’s meals served in small, heavyweight earthenware pots.

– Dr. Ivana Crnec, DVM

NOTE: Advice provided within this article by is not a substitute for veterinary advice. Please discuss your pet’s specific dietary needs (based on his breed, weight, age, and health status) with a veterinarian.

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