Fungi for Dogs: A Complete Guide
Early canids regularly consumed forest floor foods, including wild plants and fungi, to survive when prey was scarce. They naturally sought out foods rich in B vitamins, minerals and protein. Fungi fulfilled this need during seasonal changes.
As wolves self-domesticated into dogs, their diets shifted radically due to their close proximity to human settlements. Early dogs ate human scraps, which included cooked or gathered wild mushrooms. Over millennia, dogs adapted genetically to process a wider variety of non-meat foods, including starches and cooked fungi.
What are fungi?
Fungi are a distinct kingdom of living organisms that are neither plants nor animals. This diverse group includes everyday organisms like mushrooms, moulds and unicellular yeasts such as brewer’s yeast.
Unlike plants, fungi cannot produce their own food through photosynthesis. Instead, they absorb nutrients directly from their surrounding environment.
What are the health benefits of feeding dogs fungi?
Feeding mushrooms to dogs provides powerful health benefits, primarily boosting immune system function, improving gut health and delivering a dense profile of essential vitamins and antioxidants.
Functional mushrooms contain specialised compounds like beta-glucans and polysaccharides that actively modulate your dog’s natural defences and reduce chronic inflammation.
Key health benefits of fungi for dogs:
Immune system modulation
Beta-glucans train canine immune cells like macrophages to fight infections and target abnormal cells more effectively.
Prebiotic gut support
The indigestible structural fibres in fungi serve as prebiotics, nourishing beneficial gut bacteria to improve digestion and stabilise the gut microbiome.
Antioxidant protection
Fungi are packed with antioxidants like selenium that neutralise free radicals, slowing down cellular damage from ageing and environmental stress.
Nutrient density
Mushrooms are a rare, non-animal source of vitamin D2 (crucial for bone health) and provide essential B vitamins, potassium and copper.
Metabolic & heart support
Certain fungi contain compounds that help regulate blood glucose levels, lower blood pressure and protect cardiovascular functions.
Top functional mushrooms for dogs
Different types of medicinal and culinary mushrooms excel at targeting specific canine health concerns:
Turkey tail
Known for robust gut and immune support. It contains polysaccharopeptides widely used as supportive care for dogs undergoing cancer treatments.
Lion’s mane
Exceptional for brain and nerve health. It stimulates Nerve Growth Factor (NGF), making it highly beneficial for senior dogs suffering from cognitive decline or arthritis-related nerve issues.
Reishi
Often called the “mushroom of immortality,” this adaptogen helps regulate the stress response, calm chronic seasonal allergies and support liver function.
Shiitake
A great culinary or supplement option rich in 30 different digestive enzymes and amino acids that support skin, coat and circulatory health.
Cordyceps
Increases cellular energy (ATP production) and oxygen utilisation which boosts stamina and vitality in active working breeds or lethargic senior dogs.
Safety guidelines
While you may read many negative comments about feeding dogs mushrooms, the fact is that any mushroom that is safe for humans to eat is also safe for dogs to eat. That includes all our traditionally available supermarket mushrooms including white button, closed cup and chestnut (cremini) mushrooms. If a mushroom is safe for you to eat, it is safe for your dog to eat!
That said, you should never feed your dog wild mushrooms unless you are highly experienced as many wild mushrooms are highly toxic and fatal. Stick to dog nutritionist-approved culinary and medicinal varieties.
All traditional culinary mushrooms are perfectly safe to feed raw or cooked. If you are at all concerned, contact a dog nutritionist.
Frequently asked questions
Q. Can dogs eat shop-bought mushrooms?
A. Yes. Any shop-bought or supermarket-purchased mushrooms like button, chestnut, shiitake and portobello are perfectly safe for dogs to eat.
Q. Can dogs eat wild mushrooms?
A. No. Only feed your dog wild mushrooms if you are highly experience with fungi and know that any particular mushroom is safe for humans to eat.
Q. Can dogs eat raw mushrooms
A. Yes they can. If a mushroom is safe for you to eat raw, it is also safe for your dog to eat raw.
Q. How should I cook mushrooms for my dog?
A. Lightly steam, boil, oven-roast or dehydrate them. If you choose to sauté them, use a little olive oil which is perfectly safe for dogs. Chop or purée them into small, bite-sized pieces.
Q. Can dogs eat mushrooms from my dinner plate?
A. They can, providing you have not cooked with onions or human culinary sauces.
Q. Can dogs eat tinned or dried mushrooms?
A. Ideally no. Processed, canned or packaged dried mushrooms are usually packed with excessive sodium and preservatives. Why use tinned when fresh mushrooms are so widely available?
Q. What are the health benefits of feeding dogs mushrooms?
A. Culinary and medicinal mushrooms provide B vitamins, vitamin D, potassium and immune-boosting beta-glucans.
Q. How many mushrooms can I give my dog?
A. Mushrooms should make up no more than 10% of your dog’s daily calorie intake.
The Dog Chef Guide to Homemade Dog Food
Looking to supercharge your dog's diet with fresh food?
100% Natural Dog Supplements
If you make homemade food for your dog, you'll need to supplement to make that food complete. My natural supplements are made in-house with canine nutritionist approved 100% natural ingredients with no additives or preservatives of any kind.
Browse individual posts
Mushrooms for Dogs: A Complete Guide
While they focus mainly on medicinal mushrooms, multiple peer reviewed scientific . . .