Brewer's Yeast (Saccharomyces cerevisiae) is a member of the Candidaceae family. It is grown worldwide. Brewer's Yeast is a rich source of B-complex vitamins, protein, and minerals. It is considered a form of fungus and can be used for a variety of purposes. Brewer's Yeast has been used in cooking, brewing beer, and nutritional supplements. Brewer's yeast has been used for diarrhea, loss of appetite, constipation, and dyspeptic compaints.