Can Guinea Pigs Eat Blueberries? (How Much is Safe?)

Blueberries are among the best superfood fruits, abundant in antioxidants, vitamins, and minerals. They are a very popular snack in America and all over the world. But are blueberries safe to feed guinea pigs as well?

The answer to that is a resounding yes! Guinea pigs can eat blueberries once or twice a week and they LOVE these berries as a treat. However, it’s best to feed only a couple of berries at a time due to the high sugar and acidity levels.

Blueberries are an incredibly nutrient-dense fruit to feed your guinea pig. The wealth of antioxidants in these berries can protect your guinea pig against many infections and diseases.

However, there are a few things you need to know before feeding them regularly to your piggy. Let’s get into it below.

You can also check out the Guinea Pig Food Chart for an alphabetical list of everything your piggy can eat and how often they can have it, along with calcium and Vitamin C levels for each food.

*Important Note: The quantity of blueberries shown in the photos is for visual purposes only and not indicative of the correct amount to feed your guinea pig in one serving.

Nutritional Value of Blueberries for Guinea Pigs

Blueberries really pack a punch when it comes to nutrients for your guinea pig. The table below shows the nutritional data for blueberries per 100 grams:

Calories57 kcal
Protein0.74 g
Fat0.33 g
Carbohydrate14.5 g
Sugar9.96 g
Fiber2.4 g
Vitamin C9.7 mg
Calcium6 mg
Phosphorus12 mg
Magnesium6 mg
Potassium77 mg
Vitamin A54 IU
Vitamin K19.3 µg
Source: USDA Food Database.

Benefits of Feeding Blueberries to Guinea Pigs

As you can see from the table above, blueberries are very nutrient-dense. These small delicious berries have a lot to offer humans and guinea pigs alike. I’ll cover some of these benefits below.

Blueberries Are Packed With Vitamins and Minerals

Blueberries are low in calories and extremely nutrient-dense. They are high in fiber and provide a good source of Vitamins C, K, and manganese. These nutrients are essential for many functions in the body, including immune function, bone health, blood clotting, making energy, and more.

Blueberries have also been linked to lower blood pressure in many studies.

Blueberries are a good source of Vitamin C for humans. However, since guinea pigs can only eat a few blueberries at a time, these berries do not provide a significant amount of Vitamin C for piggies.

According to the USDA food database, five berries provide about 0.66mg of Vitamin C. Most guinea pigs require an average of 10-30mg per day.

Compare blueberries to sweet yellow bell peppers that contain 27.5mg of Vitamin C in a single slice (1/8 of a medium pepper), and you can see that the difference is substantial.

Blueberries provide a tiny boost of Vitamin C, but it’s important to feed them along with some higher vitamin C foods to ensure your guinea pig gets the full amount of this nutrient that they need.

Blueberries Are Extremely Antioxidant Rich

Skylar LOVES her blueberries!

The most significant benefit of blueberries is their incredibly high levels of antioxidants. Blueberries are one of the richest fruits in antioxidants. These compounds help protect the body by neutralizing free radicals that damage cells.

When free radicals get out of control in the body, this increases the chances of many chronic diseases, including cancer, heart disease, and diabetes. Antioxidants help keep these pesky molecules in check and prevent them from overwhelming the body.

Free radicals also damage DNA cells in the body, increasing the rate of aging. Antioxidants can help slow this down, which is why blueberries are often hailed as an anti-aging food.

Blueberries May Reduce Bladder Infections

Another little-known fact about blueberries is that they can be beneficial for urinary tract infections. Blueberries are closely related to cranberries. Like their close cousin, they contain substances that can help prevent bacteria from sticking to the bladder wall.

Feeding blueberries can not be used in place of proper vet treatment to cure an active infection, but it may be effective for prevention, especially for guinea pigs that are prone to recurring UTIs.

Blueberries are also a great fruit for guinea pigs with bladder stones as guinea pigs are more at risk of infection when they have bladder stones. Blueberries are also a very low-calcium food for guinea pigs.

Risks of Feeding Your Guinea Pig Blueberries

While blueberries are nutrient-dense and contain a wealth of antioxidants and other benefits, there are a few things you should keep in mind when feeding these sweet berries to your guinea pig.

Blueberries Are High in Sugar

First of all, blueberries contain a lot of sugar. Guinea pigs are herbivores that have evolved over the years to consume a low-sugar diet of forage and grasses. Therefore, their guts are not made to digest large amounts of sugar.

Feeding too many blueberries or other sugary foods can often lead to stomach pains and indigestion. Feeding too much sugar over time can also cause obesity, and this can lead to countless more health conditions.

For these reasons, it’s a good idea to limit the number of blueberries you offer your guinea pig and avoid feeding other sugary fruits around the same time.

Blueberries Contain Some Natural Acidity

Blueberries also contain a fair amount of natural acidity. If fed in excess, this can cause mouth sores in some guinea pigs, diarrhea, or an upset stomach. As long as these sweet berries are fed in moderation, the sugar and acidic content does not pose a significant risk. Blueberries have many great minerals and make a healthy and delicious snack for your guinea pig in small quantities.

Allergies or Bad Reactions to the New Food

Like with other foods, there is always a chance that your guinea pig is allergic or has a bad reaction to blueberries. This is rare, but it’s always important to introduce new foods gradually and keep an eye on your guinea pig in case they have an adverse reaction.

How Often Can Guinea Pigs Eat Blueberries?

Guinea pigs can eat 2-3 blueberries once or twice a week. It’s best to spread out the days you feed blueberries and avoid giving them back-to-back days. You should not feed your guinea pig blueberries every day due to the high levels of sugar and acidity.

If your guinea pig is overweight or eats other types of fruit regularly, it’s best to reduce the frequency of feeding blueberries to once a week or less.

If you’re feeding blueberries regularly, be sure to balance out the diet with plenty of greens that are low in sugar, such as arugula, spinach, basil, or collard greens.

Pansy absolutely loves her blueberries as a weekly treat.

Also, avoid feeding other high-sugar fruits on the same day that you give blueberries, especially other acidic fruits like oranges, cherries, or tomatoes.

Do Guinea Pigs Like Blueberries?

Poppy gets super excited when the blueberries come out!

Many guinea pigs love berries, including strawberries, raspberries, cranberries, and blackberries. Blueberries are often one of the most popular berries with piggies. For reference, I have 13 guinea pigs and they all love blueberries!

Oftentimes, guinea pigs will eat as many as they are allowed. This is why it’s crucial to feed them the recommended amount above and not give in to begging, especially if these berries are one of your guinea pig’s favorites.

However, not all guinea pigs have a sweet tooth, so you may find that your guinea pig turns down blueberries. All guinea pigs have their own likes and dislikes, and this is perfectly fine!

If your piggy isn’t big on sweet foods, try things like radicchio, endive, cilantrobroccoli, celery, fennel, carrots, or Swiss chard. I’ve found that all my guinea pigs that turn down other types of fruits are drawn to many of these veggies instead.

Can Baby Guinea Pigs Eat Blueberries?

Baby guinea pigs over four weeks old can eat blueberries in small amounts. Introduce fruit to young guinea pigs slowly as their body is still adapting and may be more sensitive to sugar than adults.

Blueberries have some excellent nutrients, but the bulk of a young guinea pig’s produce should be leafy vegetables like parsley, dandelion, and kale.

These greens have high levels of calcium and Vitamin C, which are essential for a baby guinea pig’s growth and development.

Baby Skittles trying out blueberries for the first time.

Can Guinea Pigs Eat Blueberry Leaves?

Leaves from blueberry plants are safe for guinea pigs to eat. They are much lower in sugar than the berries themselves and contain some great vitamins and antioxidants. Blueberry leaves can be fed to your guinea pig more frequently, a few leaves 2-3 times a week.

Can Guinea Pigs Eat Frozen Blueberries?

It is always best to feed your guinea pigs fresh, raw blueberries. However, if these are not an option, guinea pigs can eat frozen blueberries as long as they are properly thawed and brought to room temperature first. Also, ensure that the berries had no sugar or preservatives added to them before freezing.

How to Prepare and Feed Blueberries to Your Guinea Pig

To feed blueberries to your guinea pig, start by choosing some fresh, healthy berries that are ripe and not wilting. Give them a good rinse to remove any traces of dirt or pesticides.

If your guinea pig has never tried blueberries in the past, start with just one berry. Offer it by hand or leave it in the cage for a while if your guinea pig is hesitant to try it initially.

Guinea pigs often like to check out the new food and try it at their own pace. Be sure to check back after a few hours to discard any uneaten food if there is any.

Sometimes guinea pigs take a bit of time to adapt and try a new type of food, so if they don’t eat it right away, try it for a few more days. It also often helps to give the new fruit separately from their regular vegetables (i.e., new food in the morning, regular veggies at night.) Guinea pigs are often more willing to try something if they have fewer options.

Observe your guinea pig for several hours after they try the new food. As long as there’s no diarrhea or odd behavior, you can gradually increase the number of berries you feed next time.

More Fruits and Vegetables That Guinea Pigs Can Eat

Did you know that guinea pigs can also eat beets, asparagus, and bean sprouts?

These foods all contain a variety of nutrients that can boost your guinea pig’s health in numerous ways. They can also eat watermelonapples, pears, and so much more.

For a complete list of all the fruits and vegetables that guinea pigs can eat, check out our article, Complete List of Safe Foods for Guinea Pigs.

Peach and Daisy digging into an assortment of greens including lettuce, parsley, and bell pepper.

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