Survival Dry Food contain 100% of the U.S. RDA of 15 Essential Vitamins & Minerals. Made with the highest quality protein which is essential in survival situations where your body needs to assimilate as much as possible from what you eat.Generally, of the food we eat, most is not absorbed as an effective use of calories . A calorie is basically a unit of energy that our bodies need to keep going. Our bodies use calories much like a car uses fuel. Because Survival Dry Food is 100% digestible and assimilated into your system, they use all of the calories to fuel your body. Combined with high-quality protein , fatty acids and carbohydrates, Survival Dry Food are an efficient means to nourish your body. The greatest possible nutrition in the smallest possible volume. SHELF LIFE AND SUSTAINABILITYWe have samples of Survival Dry Food that were produced in 1974-75. They have been stored at room temperature. We test them periodically and have found little, if any, deterioration or loss of vitamin or food value. Our results showed negligible loss in these areas. Freezing temperatures will have no effect at all on these Dry Food. We would estimate the shelf-life is 25 years, but suggest rotating them to ensure maximum food value every 2-3 years.NUTRITIONSurvival Dry Food contains: Fat 25%, Protein 9%, Carbohydrates 58%, Iron 18 mg. (as Ferrous Fumarate), other minerals, 2% (from milk solids), and the following vitamins in percentages shown of their USRDA adult allowance. There are approximately 20 calories in a 3.9 gramSurvival Dry Food.Package Includes:- 4 x 24-tab pouch (Each pouch is 1 flavor: Butterscotch, Vanilla, Strawberry, Chocolate).