A dog with an unsure expression looking at nutritional yeast, indicating caution for dog consumption.

Can Dogs Eat Nutritional Yeast?

Yes, dogs can eat nutritional yeast in moderate amounts. It is generally safe for dogs and can even offer some nutritional benefits. However, it's essential to avoid brewers' yeast as it can cause health problems. Always ensure nutritional yeast is plain without added ingredients like garlic or onion powders, which are toxic to dogs.

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

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

Updated on Jun 24, 2024

Did You Know?

Nutritional yeast is packed with B-vitamins which can help support your dog's overall health.

Nutritional Yeast



Rating: 4 out of 5 stars🍏🍏🍏🍏


Rating: 3 out of 5 starsπŸͺπŸͺπŸͺ


Rating: 3 out of 5 starsπŸ‘πŸ‘πŸ‘

Feeding Frequency


Allergic Risk


Benefits and Risks of Nutritional Yeast

Nutritional yeast is rich in B-vitamins and can add a cheesy flavor to your dog's food without the dairy. It's a great source of protein and fiber, promoting digestion and energy production. However, too much nutritional yeast can lead to digestive upset, such as gas and bloating. Always start with a small amount to see how your dog reacts.

What Nutritional Yeast is Safe/Unsafe?

  • Safe: Plain nutritional yeast flakes or powder without added ingredients.
  • Unsafe: Brewers' yeast, garlic and onion-flavored nutritional yeast.

Other Products Containing Nutritional Yeast

You might find nutritional yeast in various health food products, but be cautious:

  • Protein powders: Often paired with other supplements not safe for dogs.
  • Vegan cheese snacks: May contain garlic or onion powder.
  • Fortified cereals: High in sugars and other additives harmful to dogs.

How to Feed Nutritional Yeast to Your Dog

Sprinkle a small amount of nutritional yeast over your dog's regular food. Start with about a quarter teaspoon and observe for any adverse reactions. You can later increase the amount gradually but don't exceed one teaspoon per day for medium-sized dogs. Mix it through wet or dry food and ensure it’s evenly distributed.

What If Your Dog Reacts Badly to Nutritional Yeast?

If your dog shows signs of a negative reaction like vomiting, diarrhea, or excessive gas, stop feeding them nutritional yeast right away. Provide plenty of water and consult your veterinarian if symptoms persist for more than a day.

Safer Alternatives to Nutritional Yeast

If you're looking for nutritional supplements without the risks, consider these:

  • Plain cooked chicken: Excellent source of lean protein.
  • Pumpkin puree: Great for digestion and overall health.
  • Blueberries: Packed with antioxidants and safe in moderation.


While nutritional yeast can be a healthy addition to your dog’s diet, it's crucial to proceed with caution and monitor your dog's reaction. Always choose plain versions, start with small amounts, and consult your vet before introducing new foods. Remember, moderation is key to keeping your furry friend happy and healthy!