Why choose Natural, Non-Fortified Nutritional Yeast? Most nutritional yeast products are fortified with excessive amounts of synthetic vitamins to increase the nutritional count. At Sari Foods Company, we believe that synthetic, man-made vitamins are not only unnecessary, but that they can be harmful and toxic to our bodies, causing nutrient imbalances and forcing our kidneys and liver to work overtime while our bodies struggle to absorb them. We can promise you this: the vitamins and nutrients plus the delicious cheese flavor found in this bag of nutritional yeast, are whole food based and naturally occurring – nothing synthetic here – just as nature intended. Our nutritional yeast is is a source of both protein and fiber and delivers all 18 amino acids, a range of minerals (including iron, selenium and zinc), a natural vitamin B-complex and Beta-glucans (known for extreme immune enhancing properties plus their ability to lower bad cholesterol).