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Urol Nurs. 2007 Dec;27(6):560-1.

Brewer's/baker's yeast (Saccharomyces cerevisiae) and preventive medicine: part I.

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University of Michigan Medical Center, Department of Urology, Ann Arbor, MI, USA.


Yeast is the term generally applied to a unicellular fungus, and there are hundreds of species now identified. One of the most notable and well-known species of yeast in health and wellness is known as Saccharomyces cerevisiae, which is also known by its more common names, brewer's yeast or baker's yeast. It is usually grown on hops or another substrate similar to the plant utilized in the beer-making industry, after which it is harvested and killed. The final product is generally half composed of protein, as well as a large amount of B vitamins and minerals, and depending on the technology, a diverse number of other healthy compounds. Typically, brewer's yeast is used as a protein supplement, energy booster, immune enhancer, or other vehicle where other compounds can be inserted to create a commercialized health product. A more extensive review of the preventive medical aspects of yeast will be covered in Part 2 of this article to be published in a future issue of Urologic Nursing. Yeast-based technology is also being used as a molecular mechanistic model of caloric restriction with the goal of improving the human life span. The current and potential impact of yeast-based technology in medicine is encouraging.

[Indexed for MEDLINE]

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