Can Guinea Pigs Eat Nuts? (Are They Safe?)

Guinea pigs need a varied diet to maintain healthy lives and get the nutrients they need from various sources. Piggies are explicitly herbivores, but they need a good mix of various foods to stay healthy. It’s crucial to understand what foods guinea pigs can and cannot eat to ensure that they stay healthy. This leads many guinea pig owners to wonder if they can give their guinea pigs nuts.

As a general rule of thumb, guinea pigs should not eat nuts. Eating nuts can cause health problems in guinea pigs, including obesity, digestive problems, bladder stones, and malnutrition. Guinea pigs can also be allergic to nuts. Nuts are never good for guinea pigs, even though some piggies will eat them if offered.

There are several foods that guinea pigs should not eat. This is true for all animals. However, guinea pigs can be particularly delicate and can be seriously harmed by the wrong foods. Let’s explore the diet of guinea pigs a little deeper and learn about what happens if guinea pigs eat nuts.

Can Guinea Pigs Eat Nuts?

Guinea pigs are herbivores that require a diet of primarily hay and grass, supplemented by vegetables and a small amount of fruit. Guinea pigs in captivity can also be fed guinea pig-specific pellets with added Vitamin C. The key to a healthy guinea pig is a varied diet.

With that said, there are some foods that guinea pigs should never eat, including nuts.

Nuts are not good for guinea pigs. While some guinea pigs will eat nuts if offered, consuming any form of nut is likely to cause serious issues for guinea pigs, especially if they eat them for a period of time.

Nuts are very high in carbohydrates, fats, proteins, and oils, which can be harmful to guinea pigs. Nuts can cause guinea pigs to gain weight very quickly and lead to several other health issues in a very short amount of time. They can also be a choking risk for guinea pigs.

Guinea pigs will often eat almost anything they are given, so it’s crucial to research and provide them with better alternatives. While nuts are not a healthy part of your piggy’s diet, they are unlikely to cause immediate harm unless your guinea pig chokes on them. So if your piggy happens to eat them once, they should be perfectly fine as long as it’s not a recurring thing.

Why Can Guinea Pigs Not Eat Nuts?

We have established that guinea pigs should not eat nuts and that consuming them can be harmful to guinea pigs, but what happens if a guinea pig eats nuts? What is the health implication of eating nuts for guinea pigs?

The truth is that there are several issues that can be caused in guinea pigs by eating nuts, some more serious than others, but all significant.

It is critical to understand what food guinea pigs should not eat to maintain their health as well as possible.

With that said, here are the problems that can occur when guinea pigs eat nuts.

Nuts Make Guinea Pigs Obese

The most prevalent problem caused by eating nuts in guinea pigs is obesity. Guinea pigs are prone to obesity, and this can cause several additional health issues in these animals.

Obesity can cause heart and lung problems in piggies, as well as high blood pressure, heart attacks, labored breathing, and several other issues.

Obesity also shortens your piggy’s lifespan. Eating nuts causes guinea pigs to gain weight rapidly, almost faster than any other food item. This is one of the biggest reasons to never feed nuts to guinea pigs.

Nuts Can Be a Choking Risk to Guinea Pigs

Nuts are small, dry, and can easily catch in your guinea pig’s throat, posing a choking risk. This can be scary if it happens, so it’s best to avoid the chance by not offering your piggy any kind of nuts or seeds.

Guinea Pigs Can Be Allergic To Nuts

This may be surprising to some, but guinea pigs are just as prone to nut allergies as humans are. However, the allergies tend to be less severe in most cases.

However, some guinea pigs are highly allergic to nuts, and eating nuts can cause labored breathing, inflammation, skin irritations, and several other symptoms.

Guinea pigs that are allergic to nuts will still eat them given the opportunity, and they may not show any signs of the allergy until later. Eating nuts can cause serious pain and discomfort for guinea pigs that are allergic to them.

Nuts Cause Digestive Problems In Guinea Pigs

Another serious problem caused by eating nuts in guinea pigs is severe digestive problems. Guinea pigs’ digestive systems are not meant to process nuts, and they can cause blockages, obstructions, diarrhea, and other digestive issues.

These digestive issues can cause immense pain and discomfort for guinea pigs, as well as gas, bloating, and lethargy.

Nuts Can Cause Bladder Stones in Guinea Pigs

Another common health issue that can be caused by nuts is bladder stones.

Several types of nuts are very high in calcium, which guinea pigs are very sensitive to. This calcium can build up in the guinea pig’s system and result in bladder stones.

These stones are very painful and can cause blockages and recurring bladder infections. They also often need to be surgically removed once they form.

Nuts Can Cause Malnutrition In Guinea Pigs

Nuts provide very little nutrition for guinea pigs and cause them to become obese simultaneously. This means that eating nuts can cause guinea pigs to become severely malnourished, despite being overweight.

Nuts have very little nutritional value for guinea pigs. Eating nuts does nothing but make guinea pigs obese while depriving their bodies of all the other nutrients that they need to remain healthy.

This is a significant reason to never feed nuts to your guinea pigs.

Alternatives to Nuts: Guinea Pig Safe Fruits and Vegetables

Since nuts do not make a great addition to your guinea pig’s diet, you may be wondering what treats are better for your piggy’s health. Below I’ve listed several great alternative safe foods that most guinea pigs love.

  • Blueberries! These sweet treats are packed full of vitamins and antioxidants and nearly all piggies love them.
  • Lettuce: A popular favorite among guinea pigs, they can safely eat romaine, Boston, green leaf and red leaf varieties.
  • Cucumber: This common staple provides a great source of hydration and piggies love it.
  • Sweet Bell Peppers: One of the best sources of Vitamin C, guinea pigs can eat all colors including green, yellow, orange, and red.
  • Radicchio: This red lettuce/cabbage hybrid looking veggie is bitter-tasting for humans but beloved by guinea pigs.
  • Cantaloupe: This sweet fruit is popular with guinea pigs and makes a great occasional snack.
  • Watermelon: Most guinea pigs love melons. They can safely eat the red flesh as well as the rind, but be sure to remove any hard seeds first!


Guinea pigs should not eat nuts, as they can pose a choking risk and cause long-term health problems for piggies. Nuts are unlikely to kill guinea pigs immediately unless they have a very bad reaction, but they can negatively impact the guinea pig’s quality of life over time.

For these reasons, it is crucial to avoid feeding nuts to your guinea pigs. There are so many safe alternatives you can feed your guinea pig that provide a great nutritional health boost. For a complete list of everything you can feed your guinea pig, be sure to check out our comprehensive Guinea Pig Food Chart.

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