Can Guinea Pigs Eat Brussels Sprouts? Everything You Need to Know!


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Guinea pigs are small and adorable pets that require a delicate diet. Every day you will need to make sure they have tons of hay to eat while also feeding them some vitamin-rich pellets and a cup of leafy greens and veggies. But when it comes to their daily veggie meal, what are the best vegetables you can feed your guinea pig? For example, can you feed your guinea pig Brussel sprouts?

Guinea pigs can eat Brussel sprouts. Brussel sprouts are packed with a long list of vitamins and other nutrients your guinea pig will need to stay healthy. Some of the more essential nutrients your guinea pig will gain from eating Brussel sprouts is vitamin C, vitamin A, vitamin K, and tons of antioxidants.

However, like most fresh veggies, you can feed your guinea pig. Too many Brussel sprouts in their diet can cause some health issues. More common issues associated with too many Brussel sprouts are bloating, gas, and diarrhea. Furthermore, too many Brussel sprouts can also cause urinary issues due to high calcium and sodium levels.


With that said, Brussel sprouts are still a fantastic treat for guinea pigs, and most guineas tend to love them. Therefore, when feeding your guinea pig Brussel sprouts, limit them to 1 or 2 Brussel sprouts once or twice a week. Doing so will make Brussel sprouts a perfect addition to your guinea pigs veggie rotation.

As you continue to read this article, we will go in-depth with the benefits of feeding your guinea pig Brussel sprouts. Furthermore, we will also be discussing the side effects of feeding too many Brussel sprouts to your guinea pig. Finally, we will give you an example of a weekly veggie meal rotation that includes Brussel sprouts, showing you how to give your guinea Brussels without overloading their system with certain vitamins and nutrients. 


Can Guinea Pigs Eat Brussel Sprouts?

Yes, guinea pigs can eat Brussel sprouts. Brussel sprouts are in the cabbage family of vegetables like kale, cauliflower, and broccoli. This also means that guinea pigs can also eat cabbage, broccoli, cauliflower, and kale. Brussel sprouts also sport a long list of vitamins and nutrients, including:

  • Vitamin A
  • Vitamin C
  • Vitamin E
  • Vitamin K
  • Vitamin B1
  • Vitamin B2
  • Vitamin B3
  • Vitamin B4
  • Vitamin B5
  • Vitamin B6
  • Vitamin B9
  • Calcium
  • Sodium
  • Zinc
  • Potassium
  • Phosphorous
  • Manganese
  • Magnesium
  • Iron
  • Protein
  • Carbohydrates
  • Fat
  • Sugar

While the list of nutrients is impressive, Brussel sprouts also come packed with a ton of water and fiber. Water will help keep your guinea pig hydrated, while fiber is the most important thing for any guinea pig diet. The vitamins in Brussel sprouts also play a crucial role in your guinea pig’s health. Vitamin C and A will help boost their immune system and help improve eyesight. Brussel sprouts also provide a healthy amount of vitamin K, which helps improve blood and bone health. 

Vitamin C is possibly the most important vitamin available in Brussel sprouts for guinea pigs. Unfortunately, guinea pigs cannot produce vitamin C within their bodies, much like humans, and thus rely on external sources for this crucial vitamin. Veterinarians recommend that guinea pigs consume at least 90 mg of vitamin C daily. Fortunately, Brussel sprouts are an excellent source of vitamin C. 

Brussel sprouts also contain potassium and calcium. Potassium is important for a guinea pig’s diet as it will help them absorb and contain water easier. While calcium will help strengthen and improve bone health. 

The Downsides To Feeding Your Guinea Pig Too Many Brussel Sprouts

Guinea pigs are small animals with small organs. This means guinea pigs can only be fed so many nutrients rich foods like spinach and Brussel sprouts before they start to become detrimental to your guinea pig’s health. Due to the size of guinea pigs and their digestive system, it is easy to cause overnutrition. 

For example, Brussel sprouts have high levels of calcium. While some calcium in your guinea pig’s diet is needed, too much can cause some health issues. Excess calcium is passed through urine, and feeding too much calcium can lead to bladder and kidney stones, which can be quite dangerous for guinea pigs. Too much sodium can also cause these issues.

Feeding too many Brussel sprouts can also cause gas, bloating, and digestional issues like diarrhea. Vitamin A and K are also fat-soluble, which means excess amounts of these vitamins are stored in fat. It is possible for humans to overdose on fat-soluble vitamins, so this can be especially dangerous for guinea pigs. With that said, you will need to be careful not to overfeed your guinea pigs with these vitamins.

Brussel sprouts also contain oxalate acid. Like everything else, too much oxalate acid is dangerous to your guinea pig’s health. Oxalate acid can do damage to your guinea pig’s digestive system and cause gastric bloat, which can be lethal for guinea pigs.

How Many Brussel Sprouts Can I Feed My Guinea Pig?

While the downsides of feeding Brussel sprouts to your guinea pig may seem scary, these issues will only occur if you provide too many Brussel sprouts for your guinea pig. Remember, Brussel sprouts are healthy for your guinea pig and are a great addition to their rotation of fresh veggies.

When you want to feed Brussel sprouts to your guinea pigs, the best way is to limit your guinea pig to two small Brussel sprouts in their daily veggie meal. If you do decide to feed Brussel sprouts to your guinea pig, only feed them Brussel sprouts two or three times a week. 

If your guinea pig has not eaten Brussel sprouts before, and you want to see if they like them, start slow. You should never introduce a new food to your guinea pig quickly as it can cause them to get mildly sick. They can even outright refuse to eat that new food you are trying to give them. 

For example, when introducing Brussel sprouts to your guinea pig for the first time, give them half a brussel sprout in their daily veggie meal. The next time you give them Brussels, you can give them a whole one instead, slowly working your way up to the amount you want to give them with their meal.

When feeding your guinea pig their daily veggie meal, it should not consist only of vegetables like carrots, Brussel sprouts, or zucchini. Instead, this daily veggie meal should be mostly leafy greens like kale, cilantro, romaine lettuce, or parsley. In addition to the main course of leafy greens, you can add baby carrot or two, one or two Brussel sprouts, some slices of zucchini, or a chunk of sweet potato. 

Furthermore, You should not feed Brussel sprouts to your guinea pig daily. Instead, space each veggie meal with Brussel sprouts apart. If you feed your guinea pig Brussel sprouts one day, you should skip at least one day before feeding them brussels sprouts again. This will give their body enough time to pass the nutrients through their body.

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Guinea Pig Daily Diet

Instead of feeding your guinea pig the same veggies every day, mix it up! Guinea pigs love eating different veggies, so it is an excellent idea to purchase a few different vegetables to feed them throughout the week. 

Here is an example: you give your guinea their daily cup of greens and veggies one day. This meal is usually kale or romaine lettuce, and you give your guinea pig 2 Brussel sprouts. The next day, you give your guinea pig some more kale, but this time you should give them some slices of zucchini instead of Brussel sprouts. The day after, you can give your guinea pig more Brussel sprouts, or you can give them one or two baby carrots with their lettuce. 

It is always best to mix up your guinea pig’s veggies so that they do not get overloaded with certain vitamins and nutrients. When serving your guinea pig their daily greens and veggies, you should be sure to wash the vegetables and leafy greens thoroughly. Doing so will clean off remaining dirt and other debris or chemicals. 

Other than their daily veggie meal, guinea pigs should always have access to some high-quality Timothy hay. Timothy hay is very high in fiber content, which is essential to a guinea pig’s digestive system. Giving your guinea pig Timothy hay will also give them plenty to snack on in between meals. 

Final Thoughts

Guinea pigs require a certain diet of vitamins and nutrients to stay healthy. Brussel sprouts provide much of these needed vitamins and nutrients like vitamin A and C. However, Brussel sprouts have high levels of nutrients like calcium, sodium, and potassium, which can be harmful to your guinea pig’s health if they consume too much. Always remember to wash your guinea pig’s veggies and leafy greens, and be sure only to serve them raw.


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