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Can Guinea Pigs Eat Blackberries? Nutrition Facts & FAQ

Chris Dinesen Rogers

By Chris Dinesen Rogers

blackberries in a plate

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Reviewed & Fact-Checked By

Dr. Lorna Whittemore

MRCVS (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

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Image Credit: Ajale, Pixabay

Humans domesticated guinea pigs over 3,000 years ago. The animals offered a vital food source and also played a role in religious rituals. They became popular pets in Europe by the end of the 16th century. Instead of being on the menu, enthusiasts pamper and treat their cavies with special diets and human foods. You can add blackberries to your list of foods safe for guinea pigs, in moderation.

Even though this fruit is nutritious, you should limit supplemental foods like blackberries to no more than 10% of your pet’s diet 1. Vegetables are superior in a guinea pig’s diet. Nevertheless, high-quality hay should provide the bulk of your guinea pig’s diet. However, let’s delve into what blackberries have to offer your cavy. A general guideline is that 85% or their diet should be good quality hay, a tablespoon of guinea pig pellets and around a cup of fresh vegetables per day.

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Nutritional Value of Blackberries

Guinea pigs are very small animals, weighing between 1.5–2.5 pounds 2. They don’t need a lot of food, although they should have unlimited amounts of timothy hay or a comparable type of hay. Like many fruits and vegetables, blackberries are mainly water, containing 88.2% in a 100-gram serving 3.

The berries aren’t terribly high in calories, although they contain sugar, which can be problematic since they could contribute to obesity. That condition can affect your pet’s quality of life and lifespan. On the positive side, they contain significant amounts of potassium, vitamin A, and vitamin C. They’re also a rich source of fiber.

Image by S. Hermann & F. Richter, Pixabay

Blackberries and a Guinea Pig’s Nutritional Needs

The tipping point for giving your guinea pig blackberries lies with their vitamin C content. A 100-gram serving provides 21 milligrams of this nutrient. Humans and cavies share a unique dietary need since neither can synthesize this vitamin in their bodies. While dogs and cats can do so in their livers, we are compelled to get it from our food 4.

Vitamin C is also a water-soluble nutrient. That means the body doesn’t store any extra amounts we consume. Instead, it is excreted. Therefore, humans and guinea pigs are in the same boat when it comes to adequate intake. We discussed the importance of hay in the cavy’s diet. However, it provides negligible amounts of vitamin C, making supplementing it necessary for your pet’s good health 5.

Unfortunately, vitamin C doesn’t last long if you add it to your guinea pig’s water. It also degrades quickly in foods. Buying pellets in bulk isn’t the best plan for ensuring adequate intake of this nutrient. That makes foods like blackberries attractive since they can provide a tasty source. A 100-gram serving will meet the animal’s daily requirement of 10–40 milligrams. Although you shouldn’t feed your guinea pig 100g of blackberries in a day.

Tips for Feeding Your Guinea Pig Blackberries

While feeding your guinea pig blackberries every day may seem like a solution, it isn’t practical because of their high sugar content. The same advice applies to most fruits. You should restrict offering your pet these foods as treats only. Vegetables don’t contain as much sugar and are less of an issue on this score. However, it’s still wise to limit how much you give your cavy.

The other concern has nothing to do with nutrition or weight. It lies with cavy behavior. Guinea pigs tend to fixate on the foods they’ll accept when they’re young. If you’ve never offered your pet these foods before, you may find that it’ll turn up its nose to this new treat. After all, this fruit is a stark departure from its regular diet of hay.

If you want to give blackberries to your pet, we suggest starting small. Offer your guinea pig a single berry, and then wait. Observe them for any signs of gastrointestinal distress, which can become quite serious in these animals.

guinea pig on the grass eating blackberries from a person's hand
Image Credit: Hurianova Olga, Shutterstock

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Final Thoughts

Blackberries offer a tasty treat for your guinea pig. They are highly nutritious and provide an excellent source of vitamin C. However, you should limit them to an occasional treat because of their sugar content. Hay, other greens, and pellets should comprise the bulk of your pet’s diet to ensure adequate nutrition in easily digestible forms.

Featured Image Credit: Ajale, Pixabay

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