Brewer’s Yeast is a microscopic mushroom containing tiny, oval shaped cells that occur isolated or arranged in beads.

There are high yeasts, used in bread making, most active temperature between 15 to 20C.

Low Yeasts used for beer making are active temperatures between 5 to 15C.

Brewer’s Yeast has many health benefits due to its high nutritional Value

Brewer’s Yeast may be beneficial for body building, promoting digestion and as a prebiotic and probiotic, also may enhance normal nerve function, stimulates the endocrine system, improves the immune system, assists people with anaemia.  The chromium in brewer's yeast may help control sugar levels for patients with type 2 diabetes by improving glucose tolerance.  Used to increase lactation in breastfeeding mothers.

Nutritional Value of 100gm





Protein               39gm

Vit A    trace

Phosphorus   1750 mg

Water 5%

Fat                       10gm

Vit B1  16mg

Calcium  210 mg

Calories 280

Carbohydrate 38gm

Vit B2  402mg

Iron  17 mg

Fibre .5 gm


Vit B3  38 mg

Sodium  120 mg



Vit B5  11 mg

Potassium 1890 mg



Vit B6  2 mg

Magnesium 230 mg



Vit C  trace

Manganese  .9 mg



Vit E  .3mg

Molybdenum 109 mcg



Biotin  200 mcg 




Folate  2mg








Yeast has a long history of use in making Beer, Wine and Meads also in the late 1600s it was used for bread making.

Bacteria and yeasts naturally live in and on our bodies, mainly in the digestive tract. Probiotics contain “good” bacteria or yeasts that keep our digestive tract functioning properly, as well as keeping the population of harmful or “bad” organisms low.

 The probiotic activity of S. boulardii in particular has been studied in the treatment of a number of conditions including:

Antibiotic-associated diarrhoea

Traveller’s diarrhoea

Acute diarrhoea from any cause

Irritable bowel syndrome


Lactose intolerance

In addition to its probiotic benefits, Brewer’s yeast has been used as a protein supplement and is promoted as an energy and immunity enhancer.

This article covers both S. cerevisiae and S boulardii .

Therapeutic Dosages

For adults, brewer’s yeast can be taken at a dose of 1-2 tablespoons per day. The powder form can be added to food or mixed with water or juice.

Probiotics, in general, should have several billion microorganisms per dose. This makes it more likely that the bacteria or yeasts will grow in the gut.

A standard dose of S. Boulardii  is 500 mg (milligrams) twice a day. This provides around 3 x 10 10-colony-forming units per gram.  If taken to prevent antibiotic-associated diarrhoea, for example, the yeast should be taken before and a few days after using antibiotics. The same is true for traveler’s diarrhoea.

Therapeutic Uses

The strongest evidence supporting the benefits of brewer’s yeast is for diarrhoea . Some studies have shown brewer’s yeast to be effective in preventing antibiotic-associated diarrhoea, as well as relapsing colitis caused by the bacterium Clostridium difficile . S. boulardii may fight this form of diarrhoea by making enzymes that counteract the effect of toxins produced by C. difficile .

Since brewer’s yeast is a rich source of the mineral chromium, it has been studied for its ability to improve blood sugar control in patients with diabetes.

There has also been interest in studying the effectiveness of brewer’s yeast for losing weight , lowering cholesterol , and preventing colds and flu . However, more research is needed.

Safety Issues

Brewer’s yeast, along with other probiotics, is generally considered safe.  Some people may experience bloating or gas when taking probiotics.

Those who should practice caution when using probiotics include people, who are severely sick, have immune system issues, or those who have central venous catheters.

People allergic to yeast or who are more likely to have yeast infections should not take brewer’s yeast. Also, people with diabetes should talk to their doctor before taking brewer’s yeast, since it can interact with their medicines and cause lower than expected blood sugar.


Possible Interactions

People taking any of the medicines listed below should exercise caution when taking brewer’s yeast:

Antidepression Medications

Monoamine Oxidase Inhibitors (MAOIs)

Brewer's yeast has a substance called tyramine in it. Tyramine can interact with MAOIs and cause very high blood pressure which can be dangerous (hypertensive crisis). This can lead to a heart attack or stroke .

Pain Medication

Meperidine (Demerol)

Taking brewer’s yeast while taking Demerol may cause hypertensive crisis.

My Conclusion

Add it to your smoothies, juice, sprinkle it on your salad or meals, or just take it with a glass of water.

Such a nutritional little powerhouse.

Give it to your dog.

It works quiet quickly on digestion (diarrhoea) and the nerves.

If you make your own beer you don’t use clearing agents etc and you will have live yeast in your beer.

I try to take it every day when I take my Juice Plus+ giving me a powerful boost all round.



thanks to Dreamtime for the free picture of beer