Can Guinea Pigs Eat Acorns? Let’s Find Out

Guinea pigs can eat a variety of foods, but you must be wondering if it’s okay to give them acorns.

Can guinea pigs eat acorns?

Guinea pigs can’t eat acorns because they contain toxic compounds called tannins, which cause kidney failure and other health problems. Acorns are not good food for guinea pigs because they contain a lot of carbohydrates and fats, and very little fiber.

In today’s article, you will learn why you should not give acorns to your guinea pigs, as well as other related questions.

Can guinea pigs eat acorns?

Guinea pigs should not eat foods rich in protein and carbohydrates in large quantities such as acorns. Your pets need food rich in fiber, and acorns can be dangerous to the health of guinea pigs.

Acorns are fruit nuts that are rich in carbohydrates and will not be suitable food for guinea pigs.

If the guinea pig eats a few acorns, nothing terrible will happen, but for guinea pigsis need a diet rich in fiber and with a moderate amount of protein and carbohydrates is recommended.

The composition of acorns also contains large amounts of tannins, which are converted into tannic acids during processing in the guinea pig’s body.

Tannic acid disrupts protein processing and can lead to kidney failure in guinea pigs.

Guinea pigs should not eat acorns because the composition of these nuts also contains halotoxins that can cause allergies.

Although allergies often pass without consequences, there is still a risk of anaphylactic shock and death in guinea pigs.

The acorns contain the following ingredients

  • Calories 144
  • Protein 2 Grams
  • Fat 9 Grams
  • Carbs 15 Grams
  • Fiber 4 grams
  • Vitamin A 44%
  • Iron 19%
  • Potassium 12%
  • Vitamin B6 10%

If you look at the composition, you will notice that there are many fats, carbohydrates, proteins and a significant number of vitamins and minerals.

In the composition of acorns there are also many unsaturated fats that are difficult to digest in the digestive system of guinea pigs and can cause stomach pains.

Acorns, like other nuts, are high in calories, which can easily cause weight gain in guinea pigs, leading to additional health problems.

Therefore, it is best not to give acorns to guinea pigs, or if you do, it should be very rarely once every two weeks as a dietary treat.Can Guinea Pigs Eat Acorns

Risks of eating acorns for guinea pigs?

If guinea pigs eat acorns there is a great danger of health problems. They can have problems with digestion and the digestive system, leading to fatal consequences, i.e. death.

So here’s a closer look at what can happen if guinea pigs eat these nuts.

Appearance of allergies

Due to the toxins contained in the acorns, guinea pigs may experience an allergic reaction that can manifest itself in a milder way, but can also be very dangerous.

The most dangerous ingredient in acorns is galatoxin, which can cause fatal consequences in guinea pigs, mostly if they eat a large amount.

While if they eat a small amount of acorns, they will probably not have severe allergic reactions, they will pass with mild allergic symptoms such as itching, redness of the skin, etc.

Danger of poisoning

In the composition of acorns, there is an ingredient called tannin, or a toxic substance that gives acorns a bitter taste.

Of all known nuts, acorns have the most tannins and can poison a guinea pig, especially if your pet eats a large amount.

For example, we humans can eat acorns, but before that we have to boil them several times, while the squirrels collect them from underground where the groundwater has already washed the tannin from the acorns.

Tannins when processed in the guinea pig’s body are converted into tannic acid which can cause kidney failure and death in guinea pigs.

Danger of kidney and bladder stones

Acorns have a lot of calcium in their composition, which can cause kidney and bladder stones in guinea pigs.

Guinea pigs need calcium, but in small amounts, they need it most when they are babies, because then calcium helps them to grow and develop faster and better.

A small amount of acorns will not cause a problem, but larger amounts will certainly create problems and the formation of stones followed by pain.

Risk of obesity and heart problems

Acorns contain a lot of fat and carbohydrates that can cause weight gain and heart problems.

Guinea pigs do not need large amounts of these ingredients, they mostly need to eat food that contains more fiber, so hay is the main food for these small animals.

A small amount of acorns will not cause problems, but any larger amount can certainly cause obesity and health problems.

Can guinea pigs eat oak branches?

Oak branches should not be given to guinea pigs to eat because they do not have enough nutrients for their organism.

Oak branches can only serve as a toy for guinea pigs, and can help reduce their teeth when they bite.

In fact, no branch of any tree has enough nutrients that a guinea pig needs.

Can guinea pigs eat oak leaves?

Guinea pigs should not eat oak leaves because they, like acorns, contain a large amount of tannins.

Tannins are harmful and can only cause problems in guinea pigs such as diarrhea, stomach pains, etc.

Tannins when processed in the stomach of guinea pigs produce tannic acid which can cause kidney failure and death in guinea pigs.Can Guinea Pigs Eat Acorns

Can guinea pigs eat chestnuts?

Guinea pigs can eat chestnuts, but it’s best not to give them any because they don’t have many nutrients for guinea pigs.

Indeed, chestnuts do not have toxins like acorns, but they have a lot of carbohydrates, which are not a priority in the diet of guinea pigs.

You can occasionally give them one chestnut a week but no more than that because guinea pigs don’t need them.

Read more: Can Guinea Pigs Eat Peanut Butter? (Find Out Now)

Can guinea pigs eat wild chestnuts?

Guinea pigs cannot eat wild chestnuts, because unlike sweet chestnuts, they have a lot of tannins.

Any larger quantity of wild chestnuts will seriously harm the health of the guinea pigs.

It can lead to kidney failure, and sometimes to fatal consequences, such as the sudden death of your pet.

Read more: Can Guinea Pigs Eat Pine Needles? All You Need To Know

Can guinea pigs eat winter squash?

Guinea pigs can eat winter squash but it will need to be cooked first before you give it to them to eat.

When winter squash is cooked, it will allow easier processing in their digestive system and will not cause problems, of course, make sure that the quantity is always moderate.

Winter squash is an excellent source of healthy nutrients for guinea pigs, especially the presence of vitamin C, which they cannot produce on their own.


Are guinea pigs allowed rice?

Rice should not be given to guinea pigs because they cannot eat cooked food, it affects the work of their digestive system. If guinea pigs eat rice, they may only have stomach pains and discomfort.

Is anything poisonous to guinea pigs?

Guinea pigs can eat a variety of food, but there are also some types of food that you should never give them to eat because they are toxic to them. Do not give them cereals, grains, nuts, seeds, dried beans, corn, peas, buttercups, sweet peas, nightshade, oak avocado, onion grass, onions and others.

Can guinea pigs eat tomatoes?

Guinea pigs can eat tomatoes because they are safe for their health and at the same time offer nutritious ingredients. One of the most important ingredients in tomatoes is fiber, which is the most important in the diet of guinea pigs.


Guinea pigs should not eat acorns because these nuts do not contain enough nutrients for their organism.

Acorns also contain tannins that are toxic to guinea pigs and can cause kidney failure, bladder stones and other problems.

If they eat a small amount of acorns, the guinea pigs will probably not have any serious consequences, but larger amounts are definitely harmful and dangerous for their life.

Therefore, do not try to give acorns to the guinea pigs, give them hay, some vegetables and fruits and of course clean and fresh drinking water.

Read more: Can Guinea Pigs Eat Pistachios? All Risks