Can Hamsters Eat Grapes?

Two hamsters and green grapes

When you love a pet, you are quick to do whatever you can to make them happy, and more often than not, this means providing them with all of their favorite foods and treats. If you have a hamster at home, you know they enjoy munching on grapes, but are they safe for them to eat?

Hamsters can eat grapes as long as they are given in small portions and only once or twice a week. Hamsters are prone to diseases such as obesity and diabetes, so limiting the amount of sugar they consume will benefit their health.

Just because you can’t give your fuzzy little friend a handful of grapes in one sitting doesn’t mean you can’t offer them some every once in a while. If you have questions about giving your hamster grapes, this article is for you.

Are Grapes Safe for Hamsters to Eat?

Overall, grapes are a pretty safe fruit that you can feed to your hamster. These little treats will actually offer your little pet a few key vitamins and nutrients they need to maintain good health. 

  • Calcium: Calcium is a crucial mineral that helps maintain healthy bones
  • Phosphorus: Phosphorus supports nerves and muscles 
  • Vit C: Vitamin C is essential for painting a healthy immune system.
  • Vit K: Vitamin K allows the blood to clot properly when needed
  • Fiber: Fiber aids in digest 

Grapes are also full of water which can be a good source of hydration.

While most hamster food will have plenty of these nutrients packed inside, you can give your pet a little extra boost by feeding them grapes.

Can Grapes Be Dangerous for Hamsters to Eat?

Although grapes can provide hamsters with nutrients their bodies need to thrive, they are also loaded with sugar. Although the sugar in grapes is natural, they are still just as bad for hamsters in large quantities as they are for humans.

There is around 15g of sugar in a single cup of grapes. Obviously, you won’t be feeding your pet this much fruit in one helping; even a fraction of that amount can be dangerous to a tiny critter’s health.

What Problems are Associated with Hamsters Eating Grapes?

Hamsters are susceptible to quite a few health conditions, with a few of them a direct result of eating too much sugar and fats. Giving your hamster too many grapes in one sitting, or even over time, can lead to adverse effects.


Did you know hamsters are known for developing diabetes over their lifetime? Hamsters are never born with the disease but can be susceptible to developing it over time. Some hammys can have a genetic re-disposition, putting them at an even greater risk. 

While diet isn’t the only thing that can cause diabetes adding too much sugar to their food dish will defiantly increase their chances. 


Obesity is a prevalent health issue in hampsters which is typically due to over-feeding and a lack of exercise.

Hamsters who are overweight are at higher risk for more severe illnesses such as heart disease and have a shorter life expectancy.

To keep your hamster from becoming too heavy, you want to feed them a complete and healthy diet and balance it out with a good amount of exercise. 

Tooth Decay

Like humans, hamsters’ teeth can suffer from chomping down on too many sweets. Sugar is well-known for sitting on top of tooth enamel and corroding it away until it damages the entire tooth.

If your pet eats a bunch of grapes with high sugar content, this can cause their teeth to rot, which will impact the way they eat and could lead to more serious health problems.

How Can you Tell if Your Hamster Has Diabetes?

The signs and symptoms of a diabetic hamster are incredibly similar to those in humans.

If you suspect your hammy may have diabetes, here are a few things to look out for a while holding off on feeding them any more grapes.

  • Excessive thirst
  • Frequent Urination
  • Dehydration
  • Dramatic weight loss or gain
  • Yellow teeth and nails
  • A sudden change in appetite

None of these signs and symptoms mean your hamster defiantly has diabetes, but they are a good indication that something might be wrong, and you should consider making an appointment with your vet sooner rather than later.

Can Hamster Have Negative Reactions When Eating Grapes?

There is no way to tell whether or not an animal will have a negative reaction to a certain food until after they have digested it.

While grapes are relatively safe for most hamsters, that doesn’t mean they won’t cause some problems for a few. 

Some hamsters can have sensitive stomachs, and introducing something new can irritate them, causing some bad reactions.

Here is a list of common symptoms in hamsters having negative reactions to grapes:

  • Diarrhea – Your hamster may experience diarrhea or loose stool if its stomach does not take well to eating grapes. In this case, make sure he or she is drinking plenty of fresh, cool water so they do not dehydrate.
  • Bulging Stomach – When your hamster’s digestive system is out of wack, you may notice they have protruding bellies. 
  • Poor appetite – Like most animals, when a hamster has an upset stomach, its appetite will not be like it is typically.
  • Lethargy – If your hamster’s digestive tract is inflamed, they will not feel well and may show signs of lethargy.
  • Aggression – Hamsters who are not feeling good may become more aggressive than normal and have been known to bite their owners.

Can Hamsters Eat Grapes with the Skin Still on it?

Technically the skin itself isn’t harmful to your hamster at all. However, if you choose to feed them to your little friend, wash them thoroughly as the skins can contain pesticides during the growing process, which can be very harmful to their health.

Aside from removing pesticides, you might also want to consider removing the skin from grapes before handing them over because it will make it a little easier for your hamster to get to the good part and really enjoy their little snack.

Can Hampsters Eat Grape Seeds?

Grapes seeds are not toxic or poisonous to hamsters in anyways. However, keeping the seeds in grapes, you feed to your hammy could put them at potential risk for choking. So while you can feed your hamsters seeded grapes, you should opt for ones without. 

Can You Feed Grapes to Baby Hamsters?

For the first few weeks of their lives, baby hamsters can only eat the food produced by their mothers, then move onto a pellets-only diet.

After about four weeks of age, it is safe to start introducing small pieces of food to your baby hamster, including grapes. 

At first, it would be best to start these little guys off slowly, only introducing about 1/8 of the grape to them at a time and giving them a little bit bigger pieces every few weeks.

Can Dwarf Hamsters Eat Grapes?

Although all hamsters have the potential to develop diabetes, dwarf hamsters have an even greater risk.

Due to the high probability your dwarf could develop this disease, it is probably best if you steer clear of any foods high in sugar content, including grapes.

Just because you shouldn’t provide your dwarf hammy with grapes doesn’t mean they can’t enjoy other sweet and tasty fruits every once in a while.

Low sugar fruits safe for dwarf hamsters to eat include:

  • Strawberries
  • Blackberries
  • Blueberries
  • Watermelon
  • Kiwi
  • Cantalope

Keep in mind that seeds are not always poisonous to animals, but many of them can be toxic or dangerous. When giving your hamster any of the foods listed above, you should always remove the seeds first.

How Much Sugar Can You Feed a Hamster?

As we have already established, hamsters shouldn’t get very much sugar at all. So when you are giving them grapes, you want to ensure you only provide around two spoons full of sugar per week. This includes anything with carbohydrates, including vegetables.

Aside from fruits high in sugars and carbs, you also want to try and steer clear of feeding your hamster carbs in the form of bread and grains. 

These types of foods are just as bad if not worse for rodents and can quickly lead to weight gain and other health issues.

How Many Grapes Can You Give a Hamster?

A good rule of thumb is to offer your hampster one small grape a day for no more than two days per week.

While this may not seem like a lot, it is plenty to make your little hammy happy and keep them growing healthy and living their best life.

Summing Things Up

When you are snacking on a handful of grapes, go ahead and offer one to your hamster. As long as you only give them a single grape, you are going to make their day and provide them with nutrients that are good for their health.

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