NOW's pleasant tasting Nutritional Yeast Flakes are produced from a specially selected strain of saccharomyces cerevisiae. This yeast is grown on enriched purified cane and beet molasses under carefully controlled conditions. This is a primary grown yeast and is therefore not a brewery by-product as is brewer's yeast. This ensures freedom from candida albicans yeast. NOW Nutritional Yeast, fortified with additional B-Vitamins, delivers the natural nutrient profile found in genuine whole foods.