What is Brewer's Yeast Used for with Dogs?

Brewer's yeast is most commonly used as a nutritional supplement for dogs to prevent fleas. But it has other benefits as well, including improving dry skin, coat and hot spots. A source of B vitamins, it can also reduce shedding. It is an antioxidant containing zinc, trace minerals and amino acids, all of which contribute to healthy skin and a shiny coat. Brewer's yeast is recommended by some vets to help improve a dog's immune system.

  1. Flea Protection

    • Use Brewer's yeast as part of a flea prevention program. The supplement is believed to discourage fleas by making a dog's blood distasteful to fleas through the sulfur it contains. However, some studies question the effectiveness of brewer's yeast in preventing fleas. Feed the dog brewer's yeast with its food daily for use as a flea preventative.

    Improve Coat

    • Feed your dog brewer's yeast to improve his coat. Dogs with dry skin or who shed excessively may benefit from the amino acids and antioxidants in the supplement, which neutralize free radicals that can damage cells. It is often used for show dogs to maintain a healthy coat and minimize shedding.

    Feed Correct Amount

    • Give this supplement with food.

      Use the proper amount of brewer's yeast for your pet's weight. Do not overdose this supplement. Brewer's yeast supplements are not standardized, so check the recommended dosage for your dog's weight on the specific product you purchase. Brewer's yeast comes in several forms: tablets, chewable pills and powder. Some brewer's yeast is made from beer byproducts. Look for a supplement made specifically for dogs to obtain the most effective product.

    Watch for Side Effects

    • Observe your dog carefully during the first few weeks you give brewer's yeast. Diabetic dogs should not take this product. It can cause bloat in larger dogs and dry skin or digestive upset in some. Start with a small amount of the supplement and work up to the full dose over the course of a week.