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Quest Vitamins LTD,
8 Venture Way,
Aston Science Park,
B7 4AP.

Tel: 0121 359 0056
Fax: 0121 359 0313
Registered in England No. 2530437

Brewer's Yeast


Derived from the yeast Saccharomyces cerevisiae, brewer’s yeast was originally extracted from the top layer in beer vats. Brewer’s yeast is a rich source of important nutrients, including Niacin, Riboflavin, Pantothenic Acid, Thiamin, Pyridoxine, Folic Acid, para-amino benzoic acid (PABA), Biotin, Copper, Iron, and Amino Acids. It is not a complete source of B vitamins, as is commonly mistaken, for it does not contain vitamin B-12. Its nutritional content may vary due with different products and methods of storage. Brewer’s yeast may be a beneficial source of proteins for people following strict vegetarian diets.


Tablets, 4-5 g daily.


Nutritional supplement:
Brewer’s yeast is a rich source of minerals, vitamins, Amino Acids, and nucleic acids. However, less expensive products available today are favoured over brewer’s yeast. Combined with cereal grains, Brewer’s yeast can be a valuable supplement for vegetarians. Combinations of Brewer’s yeast with the following may provide complete protein requirements, depending on the specific content of a product: peanuts, legumes, seeds, nuts, whole grains, corn, and green leafy vegetables.

Studies have found Chromium-enriched Brewer’s yeast to be effective for improving HDL (good) to LDL(bad) cholesterol ratios (1)

Brewer’s yeast is also recommended as a treatment for loss of appetite, Acne, and acute Diarrhoea (2).


Brewer’s yeast is regarded as generally non-toxic.

Some individuals may experience Migraine Headaches if they are sensitive to brewer’s yeast.


There are no known drug interactions or contra-indications for brewer’s yeast.


1. Blumenthal, M (Ed.): The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. American Botanical Council. Austin, TX. 1998.
2. Schellenberg, D et al: Treatment of Clostridium difficile Diarrhoea with brewer’s yeast. Lancet. 1994 Jan 15; 343(8890):171-2.