Can I Use Brewers Yeast on My Dog? (Vet Answered)
This question has been answered by a vet
Veterinarian & Animal Behaviorist
With nearly two decades in veterinary medicine, Dr. Paola brings hands-on experience across multiple species. A graduate of the University of Guadalajara, she specializes in preventive care, animal welfare, and positive reinforcement training.
The Question
“Does brewer’s yeast help dogs with yeast infection? “– Dan
Hi Dan,
Yeast infections in dogs can be frustrating, and it is natural to want to try supplements like brewer’s yeast to help. The important thing to know is that brewer’s yeast does not treat yeast infections. These infections, most often caused by Malassezia pachydermatis, happen when the normal balance of skin organisms is disrupted, often because of allergies, hormonal changes, or other underlying health issues. To clear the infection, the real cause needs to be addressed, along with antifungal treatment prescribed by a veterinarian. Depending on the case, this may involve medicated shampoos, wipes, or oral antifungal medication for more persistent problems.
Although brewer’s yeast is sometimes promoted as a source of B vitamins or even as a natural flea repellent, research does not support its use for yeast infections. In fact, for some dogs, it may cause digestive upset or sensitivities without offering any benefit. If your dog is showing signs like itchiness, odor, or skin irritation, the most effective step is a veterinary exam. This way, the underlying cause can be identified and treated, bringing true and lasting relief instead of temporary or incomplete improvement.
Kind regards,
– Dr. Paola