Can Guinea Pigs Eat Spinach?

couple of guinea pigs eating

A guinea pig must be well cared for and loved. When you get a guinea pig as a pet, it is vital to feed them a proper diet so they can maintain a healthy body for years and rarely get sick.

They can eat spinach and it is very much part of a healthy diet for guinea pigs.

Can Guinea Pigs Eat Spinach?

Yes, guinea pigs love to eat and snack on spinach leaves. In fact, spinach leaves are one of the most popular snacks for guinea pigs. But watch out, because when a guinea pig eats spinach leaves, they will look very cute! Watch as they nibble on the spinach leaves and try not to fall in love. However, spinach leaves are high in certain compounds that could cause internal problems in the body of a guinea pig. Small quantities are okay, but this vegetable is not one that can be served every day. At most, feed spinach to a guinea pig just twice a week.

Components of a Healthy Guinea Pig Diet

1. Hay

The first thing you should know about providing your guinea pig with a healthy diet is that hay makes up around 80% of their food. Guinea pigs are complete herbivores, and they need a lot of fiber to maintain a healthy digestive system. They eat hay all day long, so many owners just leave a brick of it in their caves so they can nibble on it whenever they want. When you buy hay, make sure it is high quality and wasn’t grown by a farm that uses a lot of pesticides. When a guinea pigs is a baby, it should eat alfalfa, not hay. Hay is for adult guinea pigs. Babies need alfalfa because it has more calcium to help them build strong bones. Hay doesn’t have much calcium.

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2. Vegetables and Fruits

The other 20% of their diet is made of vegetables, fruits, and pellets. When you are serving guinea pigs eat their vegetables, they should only have one cup of vegetables per day. Fruits, on the other hand, should just be a snack and should not be every day. At most, food should be served to a guinea pig once or twice a week. Do not serve them a lot of fruit. They only need a few bites of fruit, since they are high in sugar.

3. Pellets

When it comes to pellets, the less you served them, the better. Pellets are full of amino acids and also full of fat, so a tiny amount should be given. Many people recommend an eighth of a cup. An eighth of a cup is equivalent to 2 tablespoons.

guinea pig and spinach

What Are the Health Benefits of Spinach for a Guinea Pig?

When you feed spinach to a guinea pig in the proper amounts and moderation, this vegetable can provide a little furball with many different vitamins and nutrients.

1. Vitamin C

One major nutrient spinach can provide a guinea pig is vitamin C. The amount of vitamin C in spinach is very high and can easily protect against scurvy. Guinea pigs are prone to scurvy, so you’ll want to make sure they eat spinach often.

2. Calcium

There is also a lot of calcium in spinach, so this vegetable would be great to feed baby guinea pigs since they need more calcium than their older counterparts to form strong bones.

3. Magnesium

Magnesium is vital to the development end bodily fortitude of a guinea pig. If a guinea pig does not get enough magnesium in its diet for a long enough time, they can develop teeth that are too large to chew it, calcification of their muscle tissue, stunted growth, and underdevelopment of certain teeth.

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guinea pig eats leaves e1589646755365

Can Guinea Pigs Eat Cooked Spinach?

No, you should never feed your guinea pig cooked spinach. Guinea pigs are not able to properly digest cooked food, and they will develop stomach problems, like internal cramping, diarrhea, or constipation. You should not feed the guinea pig frozen spinach, either. 

What Happens if Guinea Pigs Eat Too Much Spinach?

1. Oxalate Build-up

Also, guinea pigs shouldn’t eat spinach more than once a week. Many nutrients in spinach leaves are good for it, but unfortunately, it has a lot of oxalates. When there is a build-up of oxalates in a guinea pig system, it can cause damage to their kidneys, liver, and other organs. The damage could become permanent, and it will alter and shorten a guinea pig’s lifespan.

Do Guinea Pigs Overeat?

Yes, guinea pigs can overeat spinach if you serve them more than they should eat. Guinea pigs do not know when to stop eating vegetables and start eating hay. They will just eat until all of the spinach is gone. Make sure only to give guinea pigs a cup of spinach when it’s their feeding time. This rule also counts for any other vegetable that they can eat. When you are putting the spinach into their bowl, do not flatten them down. Just place them into the bowl and put the bowl in their cage.

Which Vegetables Guinea Pigs Can and Cannot Eat?

There are quite a few vegetables guinea pigs can eat, which is a good thing because guinea pigs are known for getting bored with their food and not eating it if it had it too many times. Talk about picky! Some of the vegetables that a guinea pig can eat are:

  • Celery
  • Cabbage
  • Asparagus
  • corn, pumpkin
  • bok choy
  • And dandelions.
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There are quite a few vegetables that guinea pigs cannot eat. Those are:


  • Guinea pigs can eat spinach, and many love to have it as a snack.
  • Because of the amount of oxalates in spinach, a guinea pig should only eat spinach once a week.
  • The Guinea pigs should not eat spinach that has been frozen or has been cooked.
  • When you serve spinach, make sure it is only one cup and do not press down on the leaves to make more room for more.
  • Spinach has a lot of vitamin C, which can protect guinea pigs from developing scurvy.
  • If a guinea pig develops oxalate build-up, they could develop liver and kidney diseases.
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