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Can Bunnies Eat Guinea Pig Food?

Do you have both guinea pigs and rabbits, and you are wondering if you can give your bunnies the same food you give your guinea pig?

Bunnies and guinea pigs are similar pets, and although they have similarities in their food, there are still some differences that you should know.

In this article, we will let you know if feeding your bunnies with guinea pig food is safe and other related facts about rabbits and guinea pigs’ diets.

Can Bunnies Eat Guinea Pig Food

They could, but they should not make a habit of it.

A small amount of guinea pig food won’t likely harm a rabbit, but it is not nutritionally balanced for them and can lead to health issues if it becomes a significant part of their diet.

Guinea pig food is higher in vitamin C than rabbit food, which can lead to health problems for rabbits if they are fed in large quantities.

Guinea pig food may contain ingredients unsuitable for rabbits, such as molasses.

Rabbits’ Nutritional Needs

The foundation of a rabbit’s healthy diet is a balance of specific types of foods tailored to meet their unique dietary requirements.

Let’s delve into the best foods for bunnies.

1. Hay

Hay is the most crucial component of a bunny’s diet and should comprise about 70% of their food intake.

It provides the high fiber content that bunnies need for proper digestive health and helps keep their teeth trimmed.

Different types of hay offer different nutrients and benefits.

For example, Timothy hay, the most recommended hay for adult rabbits, is high in fiber and low in protein and calcium.

Meadow hay is another excellent choice and provides good variety.

Alfalfa hay, while delicious for rabbits, is high in calories and calcium, making it better suited for young, growing rabbits or as a treat for adult rabbits.

2. Fresh Vegetables

Fresh vegetables are an essential part of a rabbit’s diet, offering additional fiber, vitamins, and minerals.

Bunnies should have at least one packed cup of fresh, leafy greens per two pounds of body weight each day.

Leafy greens like romaine lettuce, bok choy, kale, spinach, and basil are excellent choices.

Non-leafy vegetables like bell peppers, carrots, and radishes can be included in smaller quantities due to higher sugar or starch content.

When introducing new vegetables to your bunny’s diet, do it slowly to avoid upsetting their stomach, and always ensure the produce is fresh and clean.

3. Rabbit-Specific Pellets

Rabbit-specific pellets should be a minor part of the diet but are essential as they provide a concentrated source of nutrients.

They are specially formulated to provide the vitamins and minerals a rabbit needs.

Pellets should be high in fiber, low in protein, and contain a balance of necessary nutrients.

Be cautious not to overfeed pellets as they are calorie-dense.

A general guideline is about 1/4 cup of high-fiber, low-fat pellets per 5 pounds of body weight per day, but this may vary depending on the specific needs of your rabbit.

4. Treats

Occasional treats can be a part of your bunny’s diet, although it is not a necessity.

Fruits, such as apples, bananas, and berries, can be given in moderation due to their high sugar content.

Treats can be a great bonding tool and provide dietary variety, but they should not make up more than 5% of the diet.

5. FreshWater

Most importantly, rabbits should always have access to fresh, clean water. Water is crucial for their digestion and overall health.

A rabbit can drink approximately 50-100 milliliters of water per kilogram of body weight daily, but this can vary depending on their diet and environmental conditions.

Composition of Guinea Pig Food

When it comes to the dietary requirements of guinea pigs, their needs are unique and distinct, just like those of any other pet.

Guinea pig food is specifically formulated to cater to these needs and maintain their health.

Here, we’ll discuss the composition of guinea pig food in detail.

1. Vitamin C

Guinea pigs, like humans, cannot produce their vitamin C (ascorbic acid) and must obtain it from their diet.

A lack of vitamin C can lead to scurvy, a disease characterized by weakness, swollen joints, anemia, and other health issues.

To combat this, most guinea pig foods are fortified with extra vitamin C, making it a critical diet component.

The recommended daily dose of vitamin C for a healthy adult guinea pig is 10-30 mg.

2. Fiber and Protein

High-quality guinea pig food often includes a mix of fiber and protein.

Fiber is crucial for a guinea pig’s digestive health, while protein is necessary to maintain their overall health and support growth and tissue repair.

Most guinea pig diets include fiber content between 15-20% and protein content in the 16-20% range.

3. Fats

Guinea pig food also contains a small amount of fats, usually around 2-5%.

Fats are a concentrated energy source and are also essential for absorbing certain vitamins, like Vitamins A, D, E, and K.

4. Grains and Seeds

Grains, such as corn, wheat, and oats, often form the base of commercial guinea pig foods. They provide essential carbohydrates for energy.

Seeds are also common, offering a range of nutrients, including essential fatty acids, protein, fiber, and various vitamins and minerals.

5. Fruits and Vegetables

Some guinea pig foods include dried fruits and vegetables.

These ingredients provide additional vitamins, minerals, and fiber. They also add variety, making the food more appealing to guinea pigs.

6. Additives

Certain additives might be included in guinea pig food for various reasons.

These can include colorings to make the food more visually appealing (more for the pet owners than the guinea pigs!), preservatives to extend shelf-life, and probiotics to support digestive health.

Risks of Feeding Guinea Pig Food to Bunnies

Feeding your rabbit guinea pig food regularly can lead to several health complications due to nutritional imbalances and the specific differences in composition between the diets of the two species.

1. Dietary Imbalance

Guinea pig food doesn’t align with a rabbit’s nutritional needs.

Bunnies require a diet high in fiber, moderate protein, and low in fat. Guinea pig food has some similarities but doesn’t hit these targets perfectly.

The disparity can lead to nutritional imbalances, resulting in health complications if the rabbit is fed regularly with guinea pig food.

2. Obesity and Associated Health Issues

Obesity is a significant risk for rabbits eating guinea pig food.

Guinea pig pellets often contain more calories than rabbit pellets. If rabbits eat them regularly, they might consume more calories than they expend, leading to weight gain.

Obesity in rabbits can lead to a host of health issues, including heart disease, liver disease, and arthritis.

It can also put pressure on their hind legs, causing sore hocks and reducing their overall lifespan.

3. Digestive Problems

Rabbits have sensitive digestive systems that require high fiber to function correctly.

Guinea pig food does contain fiber, but it might not be in the right amounts or type that rabbits require for optimal health.

Insufficient fiber can lead to gastrointestinal stasis, a severe condition where the digestive system slows down or stops entirely, causing bloating, discomfort, and potentially fatal if not treated promptly.

4. Overconsumption of Vitamin C

Although not inherently harmful to rabbits, guinea pig food’s high vitamin C content is unnecessary for rabbits and could lead to issues when consumed in large amounts.

Unlike guinea pigs, rabbits can synthesize their vitamin C and do not require additional amounts in their diet.

Overconsumption can lead to diarrhea and other digestive issues, which can cause discomfort and potential dehydration in severe cases.

5. Dental Problems

Rabbits’ teeth continuously grow throughout their life.

They rely on the abrasive action of chewing hay to wear down their teeth naturally.

If guinea pig food – which requires less chewing and provides less abrasion than hay – makes up a substantial part of their diet, it could lead to dental problems.

Overgrown teeth can cause pain, difficulty eating, and potentially lead to abscesses.


Here are some frequently asked questions.

Is Guinea Pig Food The Same as Rabbit Food?

There are similarities in the diets of guinea pigs and rabbits (like hay being a main source), but their food is not the same.

Guinea pig food often contains added vitamin C, which guinea pigs require, but rabbits produce naturally.

Is It Safe For Rabbits To Eat Guinea Pig Food?

Rabbits can eat guinea pig food in small quantities without adverse effects. But it shouldn’t be or substitute for their main meal.

Also, the pellet formulation may be slightly different to cater to the different dietary needs of the two species.

Can Guinea Pig Food Be Given As An Occasional Treat To Rabbits?

Given the differences in nutritional content, we do not recommend giving guinea pig food to rabbits, even as a treat.

Rabbits have specific dietary needs, and their type of pellets, along with hay, vegetables, and water, should meet these needs adequately.

Can Guinea Pig Food Be Harmful To Rabbits’ Teeth?

Guinea pig food is not harmful to rabbits’ teeth, but some guinea pig food may be too large for rabbits to chew properly, leading to dental issues over time.

The rabbit’s diet must be high in fiber, which is essential for both digestive and dental health.

Rabbits need to chew a lot to keep their teeth from overgrowing.

What Should I Do If My Rabbit Accidentally Eats Guinea Pig Food?

If your rabbit accidentally eats some guinea pig food, don’t panic.

A small amount should not cause any harm.

Guinea pig food is not toxic to rabbits, but it may cause digestive issues due to the difference in nutritional composition.

Symptoms of digestive problems in rabbits may include diarrhea, soft or small droppings, decreased appetite, or changes in behavior.

If you notice these symptoms after your rabbit has eaten guinea pig food, consult a veterinarian for advice.


It might be convenient to feed your bunny guinea pig food, especially if you have both pets in your household, but you should understand that their dietary needs are not the same.

Guinea pig food, due to its unique composition, is not suitable for bunnies and could lead to health issues if it becomes a mainstay of their diet.

You should always give your bunny a balanced, rabbit-specific diet. This will ensure that your bunny remains healthy.

We hope this article helped you know if rabbits can eat guinea pig food. If you have any questions, comment below, and we will answer them.


1. Kpodékon T Marc (University of Abomey-Calavi), Issaka Youssao Abdou Karim(University of Abomey-Calavi), Tossou CM, Y. Djago. EFFECTS OF MOLASSES INCORPORATION IN RABBIT FATTENING DIET ON GROWTH PERFORMANCES.

2. Mark A. Suckow, Karla A. Stevens and Ronald P. Wilson. American College of Laboratory Animal Medicine. The Laboratory Rabbit, Guinea Pig, Hamster, and Other Rodents. 2012.


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