How to Use Brewer's Yeast As a Flea Treatment for Dogs

All of a sudden the dogs are eat up with fleas. And they're not due for Frontline for another week. I just ordered some Brewer's Yeast and Garlic.

Some people say to give Brewer’s yeast and garlic to your dog to kill fleas, but I know from my days running an organic dog treat business that garlic is bad for dogs. It can cause anemia and liver damage over time (it builds up in your dog’s system over time).

Creative ideas like this Homemade Flea Remedy Treat are fun for humans and dogs alike. This recipe is not just a way to keep the flea’s off your baby, even though Brewer’s yeast has been shown to do that quite effectively…it is a way to spend quality time in the kitchen with your dog, an activity that you both will enjoy. And contribute to their health and overall wellness.

I don't recommend feeding allergenic brewer's yeast to pets. Do Brewer's Yeast & Garlic Help Repel Fleas from Dogs & Cats? - Pets

Brewer's yeast is touted as a natural remedy for fleas for dogs and cats because fleas have an aversion to thiamine, which is found in abundance in brewer's yeast. Thiamine is part of the B complex vitamins. When you feed brewer's yeast to your pet, it ingests the thiamine and exudes it through its skin; it can even be found in its blood, and the taste and odor drive fleas away.I only just found out about the debittered (brewers) yeast that you can give to dogs and cats. Yippee, something natural to get rid of and keep fleas away. How long before it starts to work? Do they have any side effects at the beginning?The recommended dose of brewer's yeast to drive away fleas is 1 tsp. for cats and smaller dogs, 2 tsp. for medium-sized dogs and up to a tablespoon for large dogs. It will take at least four weeks of oral doses of brewer's yeast for the brewer's yeast to effectively drive away fleas, so you should begin supplementing your pet's diet with brewer's yeast in early spring if you hope to prevent a flea infestation. Brewer's yeast as an oral supplement will not work as a flea deterrent for every pet, though it will work with most pets. While excess B vitamins will be flushed out of your pet's body in its urine, excess amounts of brewer's yeast can cause skin allergies. Keep an eye on your pet's health and do not give it excessive amounts of brewer's yeast.It's true that it is not an immediate solution and I agree with the others who have said that it's best to get rid of the fleas that you do have now (both in the house and on your pets) but I recommend starting your pets on the supplement now and once they and the environment are clear, they will stay flea-free. With diligence, and a good flea comb, you can remove a great many fleas (have a small bowl or glass of rubbing alcohol nearby - comb out the fleas and pop the comb in the alcohol before the fleas have a chance to struggle free & hop away.) You didn't mention your dog's breed but if it is a large or very furry animal you might consider shaving the fur very short (a buzz cut!) to reveal the fleas, and then just go after the little buggers with the flea comb! My experience has shown that once you are rid of them, the yeast will keep them away.