Nutritional yeast contains a high concentration of the B-complex vitamins, keys to a healthy life. Deficiencies in these vitamins can lead to well characterized deficiency syndromes such as beri beri, pellagra, and pernicious anemia. The body has elevated requirements for many vitamins under situations that include stress, heavy exercise, the use of oral contraceptives, pregnancy, lactation, the use of diuretics, alcohol abuse, and increased body metabolic rates due to viral or bacterial infection. Lesaffre Yeast Human Care nutritional yeast is a valuable nutritional supplement for daily life. Nutritional yeast is also an excellent source of complex carbohydrates (beta-1, 3 glucan and mannan). These dietary fibers have been shown to have a positive relationship to decreased serum cholesterol. Glutathione, an antioxidant also found in nutritional yeast, plays an important role in cellular defense mechanisms. Our specific cultivation methods allow for the presence of these beneficial components, setting nutritional yeast apart from brewers yeast. It is not a dairy yeast product, such as whey yeast; nor, does it contain added sugars or preservatives. Nutritional yeast is best kept stored in an airtight container in the refrigerator or in a cool dry place. Shelf Life: 730 Days 16 MKS