Guinea pigs🐹 are herbivores (an organism that feeds mostly on plants) and require a diet consisting of grasses, vegetables, and fruits to sustain their health. But can guinea pigs eat mushrooms?
As a caring pet owner, you must be aware of your pet’s nutritional requirements. However, numerous foods that are harmless to humans👨 can be poisonous to guinea pigs. Mushrooms are one such delicacy.
In this article, we will answer the question and we’ll discuss the potential risks associated with feeding them to your pet.

What Are Mushrooms?
Mushrooms🍄 are a type of fungus that is available in numerous varieties, such as shiitake, button, portobello, oyster mushrooms, and others as well. In addition to their unique taste, texture, and health advantages, they are frequently used in cookery.
Nutritional Value of Mushrooms
Mushrooms are lower in fats and calories but contain a lot of vital vitamins and minerals. They are an excellent source of B vitamins, which include riboflavin, pantothenic acid & niacin, and minerals, such as copper, potassium & selenium,
Nutritional Needs of Guinea Pigs
Before finding out if guinea pigs🐹 can consume mushrooms, it is essential to know their nutritional requirements. Guinea pigs need a high-fiber, vitamin C-rich diet that is low in sugar and fat. Fresh vegetables, hay, and a limited quantity of fruits comprise a balanced diet. Additionally, freshwater should always be provided.
Can Guinea Pigs Eat Mushrooms?
Yes, guinea pigs are able to consume mushrooms. But not all mushrooms are healthy for guinea pigs. Certain types of mushrooms are poisonous☠️ and can cause serious health issues, whereas others are safe to ingest in small quantities.

Types of Mushrooms That Are Safe for Guinea Pigs
Several varieties of mushrooms are safe for guinea pig consumption, including:
- Button mushrooms
- Shiitake mushrooms
- Oyster mushrooms
These mushrooms are safe to ingest in small quantities and offer nutritional advantages, including vitamin B & antioxidants.
Toxic Mushrooms for Guinea Pigs
There are several varieties of mushrooms that are poisonous to guinea pigs and may lead to serious health issues, including death☠️. These include:
- Amanita muscaria (fly agaric)
- Amanita phalloides (death cap)
- Gyromitra esculenta (false morel)
It’s essential to avoid feeding these mushrooms to your guinea pig at all costs.
How to Safely Feed Mushrooms to Your Guinea Pig
If you decide to feed your guinea pig mushrooms, you must do so in a safe manner. Give your guinea pig only a small quantity of the types of mushrooms listed above.
Always completely wash💦 mushrooms and extract stems or any other parts that could be hard for your guinea pig to digest. Also, observe your guinea pig for any indications of illness or difficulty after mushroom consumption.
Also Read: Are Mushrooms Legal In Michigan?
Preparing Mushrooms for Guinea Pigs
Before serving your guinea pig🐹 mushrooms, you must appropriately prepare them. Begin by completely washing them to remove any dirt or particles. Remove the stems from the mushrooms and slice them into bite-sized pieces. They can be served fresh or cooked, but no seasonings or oils should be added.
How Many Mushrooms Can Guinea Pigs Eat?
Mushrooms should be provided to guinea pigs in tiny amounts only, as they aren’t a normal part of their diet. A decent amount is to offer mushrooms no more than once or twice per week.
Benefits of Mushrooms for Guinea Pigs
Mushrooms are a rich source of vital minerals and vitamins, such as B vitamins, copper, and selenium, which can support the health of your guinea pig. Also, they may include antioxidants and other bioactive substances with possible health advantages.
Risks of Feeding Mushrooms to Guinea Pigs
There are numerous varieties of mushrooms that are poisonous to guinea pigs and may lead to severe health issues. Poisonous mushrooms have the power of causing liver failure, convulsions, & even death☠️.
Also Read: Where to Buy Lion’s Mane Mushrooms
Other Foods to Avoid Feeding Your Guinea Pig
Along with mushrooms, there are also some other foods that should be avoided when feeding a guinea pig:
- Chocolate
- Avocado
- Potato leaves and stems
- Tomato leaves and stems
- Onions & garlic
- Rhubarb
These foods may trigger a variety of health issues, including gastrointestinal distress, convulsions, and even death.
Alternatives to Mushrooms for Guinea Pigs
If you do not feel secure giving your guinea pig mushrooms, there are many other fruits and veggies you may provide instead. Among the many excellent options are bell peppers🫑, carrots🥕, spinach, kale, and parsley. Always introduce new foods gradually and in small amounts to prevent digestive issues.
Conclusion
While some varieties of mushrooms are harmless for guinea pigs to consume, others are poisonous☠️ and can cause serious health issues. If you decide to give your guinea pig mushrooms, ensure they are one of the safe varieties and feed them in small quantities. Constantly observe your guinea pig🐹 for indications of illness or difficulty after introducing a new diet.
Also Read: Where Are Mushrooms Legal?
FAQs
Yes, guinea pigs can eat some types of mushrooms but in moderation.
Button mushrooms, portobello mushrooms, and oyster mushrooms are safe for guinea pigs to eat.
Wild mushrooms should be avoided as many types can be toxic to guinea pigs and cause serious health problems.
It is recommended to give your guinea pig a small amount of mushrooms, like one or two small slices, once or twice a week.
No, mushrooms should not be a regular part of your guinea pig’s diet. They should be given as an occasional treat.
Although mushrooms contain some vitamins and minerals that are beneficial for guinea pigs, they should not be relied upon as the primary source of nutrition.
Eating too many mushrooms or consuming toxic mushrooms can cause health problems for guinea pigs, including gastrointestinal issues and liver damage.
Yes, we recommend you cook the mushrooms before giving them to your guinea pig. This will help to break down some of the indigestible components & make them easier to digest.
Canned mushrooms are not recommended for guinea pigs as they may contain added salt and preservatives that can be harmful.
Dried mushrooms are not recommended for guinea pigs as they may contain concentrated levels of certain compounds that can be toxic in large amounts.
Introduce mushrooms to your guinea pig’s diet slowly and in small amounts, to allow your guinea pig’s digestive system to adjust.
Yes, remove the stem and any tough or woody parts of the mushroom before giving it to your guinea pig.
Cooked mushroom stems are safe for guinea pigs to eat in moderation.
Mushrooms should not be used as a natural remedy for guinea pigs as they can cause health problems if not given in the correct amount.
Vegetables such as zucchini, cucumber, and bell peppers🫑 have a similar texture and nutritional profile to mushrooms and are safe for guinea pigs to eat.