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The Health Benefits of Brewer's Yeast for Dogs: A Guide to The Health Benefits of Brewer's Yeast for Dogs

Pet health is just as important as human health. Natural remedies are often as effective as conventional treatments, and simpler and safer.

Brewer's yeast is safe for puppies

Brewer's yeast is safe for puppies

Does Brewer's Yeast Repel Dog Fleas?

Yes, it can do, but now always. However, Brewer's yeast is an excellent supplement for dogs.

There are many excellent reasons why you should give your dog Brewer's yeast. Brewer's yeast is a safe supplement for most dogs and can help to enhance your dog’s health.

Brewer's yeast has been used as a pet health product for a long time, and many veterinarians recommend Brewer’s yeast as a dietary supplement.

Why should I give my dog Brewer's yeast? There is good scientific basis why you should consider adding Brewer's yeast to your dog’s health care routine. The top reasons include flea control, better skin and an improved immune system.

I started to use Brewer's yeast as an alternative flea control after it became apparent my new puppy Sadie was severely allergic to all of the standard flea treatment such as Frontline and Advantix. Not only was she allergic to flea treatments. It turned she was allergic to certain dog food brands and dog shampoos.

What makes Brewer's yeast such a great supplement and flea treatment for dogs? Brewer's yeast is rich in Essential Fatty Acids, B vitamins and many antioxidants which can help to keep your dog healthy.

Sadie loves agility

Sadie loves agility

How Brewer's Yeast Repels Dog Fleas

Flea control can become a problem if your dog is allergic to standard veterinary flea control treatments. I have tried many of the available flea treatments available but my dog sadly reacts in one way or another to all of them. On one occasion she had to be rushed to the vet with breathing problems and had to stay overnight in the veterinary clinic.

Researchers are still a bit baffled why Brewer's yeast is an effective flea treatment but it is generally thought it makes the blood taste unusual. There is another theory that seems to show the yeast creates a certain odor which may deter biting insects. It does contain sulfur compounds which could be considered unappetizing to insects.

Brewer's yeast is very rich in the B group vitamins which are vital when it comes to healthy blood so there can indeed be a link between improved blood health and insect control.

I have adding Brewer's yeast to Sadie’s diet for four months, and I have noticed despite warmer weather, she has not suffered from fleas and ticks.

Cats also benefit from Brewer's yeast as it often improves the quality of their coat and energy levels.

My 19 year old Yorkshire terrier Gonzo

My 19 year old Yorkshire terrier Gonzo

Natural Remedies for Pets

Brewer's Yeast and Your Dog’s Coat

Since I have been giving Sadie Brewers yeast on a daily basis, I have noticed her coat looks healthier. She is a young dog so her health is excellent but since starting the daily supplement regime, I have noticed her coat has a definitive sheen to it. Another benefit seems to be that she sheds less.

I also have a 19-year-old Yorkshire terrier which always used to suffer from itchy skin. However, since I started to give Gonzo a Brewers yeast supplement, I have not had to resort to any specialist shampoo treatments, and he is certainly scratching less. Skin problems in Yorkshire terriers are common and can be difficult to treat.

Antioxidants Found in Brewer's Yeast

One of the main reasons Brewer’s yeast works to improve both coat and skin quality is its high content of antioxidants.

The most common antioxidants found in Brewer’s yeast are chromium and zinc. Chromium helps to control blood sugar levels. If your dog suffers from diabetes, Brewer's yeast could be a good canine supplement.

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When it comes to food, chromium can be found in wholegrain cereals, liver, and red meat. Zinc is crucial for normal growth, immunity, and reproduction. It supports the digestion of enzymes and can be found in red meat, oysters, nuts and sunflower seeds.

All Curled Up

My dog Sadie curled up with her litter mates taking a siesta.

My dog Sadie curled up with her litter mates taking a siesta.

The Role of Vitamin B in Canine Health

The members of the vitamin B group all have various functions but do work as a group

Which B Vitamin Does WhatRole in Health

B1 Thiamin

Needed to make collagen and neurotransmitters. Aids absorption of iron from plant food

B2 Riboflavin

Release of energy from food, and for B6 and niacin to function

B6 Pyrixodine

Releases energy from proteins. Supports the immune and nervous system. Aids the formation of red blood cells

B3 Niacin

Needed for energy production in the cells

B5 Pantothenic Acid

Helps to Release energy from food


Important in the synthesis of fat

Folic Acid

Required for healthy cell division, and the formation of DNA, RNA and proteins


Crucial for making DNA, RNA and myelin. Needed for cell division

Stress and Brewers Yeast

Canine stress is not uncommon. Separation anxiety is perhaps one of the most common stress disorders in dogs but there are many other stress disorders that can affect your pet as well.

Stress can cause severe skin reactions in dogs, and they can suffer from bold patches or outbreaks of eczema.

Just like when humans suffer stress, dogs will use more B vitamins when they suffer from stress disorders. Brewers yeast is one of the best natural sources of vitamin B and is an excellent supplement time during stressful periods in your dog’s life.

The members of the vitamin B group are all water-soluble and your dog’s body can't produce vitamin B. It is therefore essential your dog consumes enough vitamin B on a daily basis to stay healthy and maintain its nervous system.

Just like in humans vitamin B balance is vital for dogs. A lack of vitamin B can also cause anxiety when excesses quantities of the hormones related to stress, adrenaline, and epinephrine, are released.

How to Use Brewers Yeast and Safe Dosage

Most dogs are given Brewer's yeast in powder format, and the correct dosage would be about ½ teaspoon for every ten pounds body weight.

Brewer's yeast is also available in a tablet formula, and the tablets range from 300 mg to 500 mg. It is important to follow the extra on the packet to make sure your dog is getting the right quantity.

My dog Sadie likes the taste and she often enjoys her Brewer's yeast with her breakfast in the morning, most dogs don’t seem to mind the taste of this supplement. Getting your dog to take Brewer's yeast is not normally a problem.

Garlic is often added which can help to make Brewers Yeast an even more effective anti-flea treatment.

Dermatitis - A Common Allergic Reaction in Dogs

Skin disorders in dogs are common. A lot of canine skin disorders stem from additives in food, and just like in humans, additives in canine feed can trigger dermatitis and eczema. It is always advisable to feed your dog a food which does not contain additives such as colorants and parabens.

Canine Atopic Dermatitis is the most commonly diagnosed skin disorders in dogs and can be caused by food. It often appears between the ages of 3 months and 6 years but can also be seen in much older dogs.

It is a condition which can also be caused by an allergen in the dog’s environment such as shampoos, laundry powder, flea bites and sensitivity to certain plants especially grass seeds. There is a clear link between dermatitis and flea bites. Dogs can be allergic to flea saliva and this will show up as dermatitis.

It is important to catch the problem early on and find out what is behind your dog’s dermatitis. Dogs that are fed leftovers from ready-made meals are prone to this type of reaction. Hot dogs, a favorite snack, contains high levels of sulphites which can trigger an allergic reaction. Unfortunately, sulphites are commonly found in dog food.

Many dog owners have successfully treated their pets’ dermatitis with Brewers yeast and found it to be an excellent alternative to cortisone or long-term anti-inflammatory medication.

© 2014 Annie Messeri


Annie Messeri (author) from Spain on April 15, 2014:

Thank you Sadie is a cutie. Brewers Yeast is an excellent alternative to conventional flea treatments, so much prefer the natural approach.

Michelle Dee from Charlotte, NC on April 14, 2014:

I never knew Brewers yeast is good for canine. Very useful hub for dog lovers and your Sadie is such a cutie!

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