This yeast discussion got me wondering what the actual name of the organism is of "Brewer's yeast". As we all know, the usual yeasty pathogen is Candida albicans. I know there are other pathogenic yeasts, but there must be some that aren't. Anyway, the name of the yeast of Brewer's yeast is Saccharomyces cerevisiae, and it is a natural source of protein and B-complex vitamins, which are good things for our bodies to have. So maybe not all yeasts are bad. There are many microorganisms which live in harmony with us, after centuries of evolution. Terry Lynn Dise, MD [log in to unmask]