Can Pet Mice Eat Cucumber- A Full Guide

Cucumber seems like something our pets would be able to eat.

Full of moisture with a slightly crunchy texture, you would have thought a mouse would enjoy a piece of cucumber, especially on a hot day.

That’s what I’m going to discuss in this article. Can mice eat cucumber and are there any health benefits or risks you need to know about when giving your mouse cucumber?

Mice and eat cucumber and it actually has a number of health benefits for mice. However; cucumber should still be regarded as a treat for your mouse and not a subsite for a healthy balanced diet.

Health benefits of cucumber for mice

High water content

Cucumbers are made from around 96% water, that makes them ideal for keeping your mouse hydrated on hot days.

It’s also great for when your mouse isn’t very well. If they have diarrhea then feeding them high water content foods along with plenty of fresh water can prevent them from getting dehydrated.

But it does mean that it cucumber shouldn’t be given as part of a standard daily diet as you don’t want to fill up your mouse’s stomach with such a high water content food.

Zero fat

Cucumber contains no fat at all, making it a great choice for a healthy treat.


Antioxidants are believed to reduce the risk of a wide range of diseases.

These include heart disease and cancers. Antioxidants reduce the number of free radicals in your mouse’s body.

Free radicals are atoms that attach themselves to cells in the body.

These cells are then identified as an invader and damaged or destroyed, hence leading to serious diseases.


Fiber is essential for healthy digestion. It has two categories, soluble and insoluble fiber.

Soluble fiber helps to control the blood sugar level of the body and aids in ridding the body of fatty substances such as cholesterol.

Insoluble fiber helps to keep the digestive system moving, it will add weight but also softens to your mouse’s stools which in turn will help the digestive system to work effectively.

Vitamin K

This is a fat-soluble vitamin that helps with blood clotting.

It also aids bone metabolism and supports the regulation of blood calcium levels.

Vitamin C

An important antioxidant, Vitamin C will rid your mouse of ‘free radical’ potentially harmful atoms that damage other cells in the body.

As a result, Vitamin C helps to protect the body against cell and tissue damage as well as aiding the body to better absorb iron.

It also helps to produce collagen, that’ll lead to more healthy skin and bones for your mouse and aids with wound healing if your mouse were to have an accident.


Potassium helps to control high blood pressure.

This helps to maintain a healthy heart and good blood pressure, putting less strain on the body as a whole.

Potassium has also been shown to support bone and muscle strength as the body ages.


Manganese helps to form antioxidants. These, in turn, can help to rid the body of harmful ‘free radicals’.

Free radicals are isolated atoms that bind themselves to cells in the body. The body then treats this cell as an invader and it is damaged or destroyed.

That can lead to a whole host of health issues and even cancer.

Manganese also helps to support good bone health, working with nutrients such as calcium and vitamin D.

Health risks of cucumber for mice

Digestion issues

Cucumber can sometimes be difficult to digest, especially the skin which is high in fiber.

Generally, mice have pretty hardy stomachs, so cucumber in moderation should be fine.

Not a substitute for a balanced diet

Cucumber shouldn’t be seen as a treat and not a substitute for a balanced diet.

Feeding your mouse too much cucumber could put them off eating their regular daily food,

So be sure to only feed your mouse a small amount of cucumber as an infrequent treat.

Can mice eat cucumber skin

Cucumber skin is perfectly safe for mice to eat and it actually contains a higher amount of nutrients than the inside of a cucumber.

The skin does contain a high amount of fiber, so you won’t want to give your mouse too much as excess fiber can cause digestive issues.

However, as cucumbers should only be regarded as a treat anyway, your mouse is unlikely to eat enough cucumber skin for the excess fiber to become an issue.

Can mice eat cucumber seeds

Mice can eat cucumber seeds.

Just like the skin, the seeds contain more nutrients than the rest of the cucumber.

They also contain more fiber, but for the small amounts of cucumber your mouse will eat the high fiber content is unlikely to cause a problem.

Speaking about how much cucumber your mouse should eat, let’s look at that next.

How much cucumber can a pet mouse eat

Cucumber should be regarded as a treat for your mouse.

I would recommend feeding your mouse no more than 1 inch (2.5 cm) of cucumber every week, assuming they aren’t having other treats in between.

I’d also recommend not giving them that amount all at once, cut the cucumber up into pieces and feed it to them every couple of days or so, just keep the total amount under the 1 inch per week I’ve stated above.

The high water content of cucumber (96%) means that it’s unsuitable as part of a mouse’s daily diet, but it can make a great treat.

Watch out of fresh food rotting

As with any fresh food, you need to pay attention to what your mouse does with the cucumber if you’re giving it to them in their cage.

If they leave some of the cucumber for more than 10 minutes then they are probably full or just not interested, you should remove it from the cage so it does rot and spoil which could be a danger to their health.

You also need to be aware of them moving the food and hoarding it.

Watch to see if they eat the food, otherwise, you might come to find a pile of rotting food hidden under their bedding when you’re cleaning out the cage.

A final note – All mice are different

You should still remember that some mice will find certain food more difficult to stomach than other mice.

Some mice may struggle to digest certain foods, especially older mice.

Wherever feeding your mouse a new food, including cucumber, always watch them for a day or so for any signs of digestive issues.

Digestive issues can be hard to spot in mice, but noticeable things could be diarrhea or a sharp reduction in activity levels.

If you notice any unusual symptoms or behavior it’s probably worth not feeding your mouse cucumber again and trying a different treat, their stomach just might not agree with it.

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