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Processed and prepackaged space food is the main source of nutrition for crew aboard the International Space Station, and likely will continue to be the main source of nutrition for future exploration missions. However, very little information is available on the nutritional stability of space foods. To better understand their nutritional stability, 24 micronutrients were measured in 109 space foods stored over 3 years at room temperature. Our analysis indicated that potassium, calcium, vitamin D, and vitamin K concentrations in the food may not be adequate to meet the recommended daily intake requirements even before storage. Decreases in vitamins A, C, B 1 , and B 6  were observed during storage. Notably, vitamins B 1  and C may degrade to inadequate levels after 1 year and 3 years, respectively. This assessment suggests that different technological approaches will be required to stabilize processed foods to enable spaceflight missions over 1 year.

Initial assessment of the nutritional quality of the space food system over three years of ambient storage