A dog with a curious expression looking at portobello mushrooms, indicating moderate safety for dogs.

Can Dogs Eat Portobello Mushrooms?

Yes, dogs can eat portobello mushrooms, but caution is essential. While portobellos themselves are not toxic to dogs, they should only be given as an occasional treat. Remember, moderation is key!

A photo of Stefan Stumpfl, the co-author of this article.

By Stefan Stumpfl, in collaboration with Dr. Ali Raza.

Updated on Jun 18, 2024

Did You Know?

Portobello mushrooms contain antioxidants which could be beneficial, but dogs derive these more effectively from other sources.

Portobello Mushrooms



Rating: 3 out of 5 stars๐Ÿ๐Ÿ๐Ÿ


Rating: 3 out of 5 stars๐Ÿช๐Ÿช๐Ÿช


Rating: 3 out of 5 stars๐Ÿ‘๐Ÿ‘๐Ÿ‘

Feeding Frequency


Allergic Risk


Benefits and Risks of Portobello Mushrooms

Portobello mushrooms are rich in vitamins, minerals, and antioxidants. They can support your dog's immune system and overall health. However, feeding too many can lead to gastrointestinal upset. Also, wild mushrooms or those with additives can be dangerous. Stick to plain, store-bought portobellos.

How Many Portobello Mushrooms Can Dogs Eat?

The amount depends on your dog's size, breed, and health. For a small dog, a tiny piece is enough. Larger breeds can handle a couple of small slices. Always introduce new foods slowly and in small amounts. Once or twice a week is plenty.

Common Misconceptions

Many believe all mushrooms are toxic to dogs. This is not entirely true. While wild mushrooms can be harmful and even deadly, store-bought portobellos are safe in moderation. Always supervise your pup when introducing new foods.

What If Your Dog Reacts Badly to Portobello Mushrooms?

If your dog shows signs of a negative reaction, like vomiting, diarrhea, or lethargy, stop feeding them portobellos immediately. If symptoms persist or worsen, contact your veterinarian right away. Better safe than sorry!

What are Healthy Alternatives?

Looking for other tasty treats? Here are some dog-friendly options:

  • Carrots: Low in calories and great for dental health.
  • Blueberries: Packed with antioxidants and vitamins.
  • Pumpkin: Good for digestion and high in fiber.


Portobello mushrooms can be a healthy treat in moderation. Watch your dog's reaction and consult with a vet if they have specific health concerns. A little portobello now and then can be a fun and nutritious addition to your dog's diet. Always play it safe and keep an eye on their overall well-being.