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NASA Finds Space-Grown Lettuce Lacks Essential Nutrients

11/16/2025

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Summary

Story summary

National Aeronautics and Space Administration (NASA) researchers report lettuce grown on the International Space Station and China's Tiangong II contains about 30% less calcium than Earth-grown lettuce.
Potassium levels remain stable, but some antioxidants are reduced, indicating mineral shifts.
To address gaps, NASA is pursuing biofortification and growing nutrient-rich plants.
Fermented foods may enhance astronaut diets by delivering vitamins and supporting gut health for future space missions.

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Story summary

National Aeronautics and Space Administration (NASA) researchers report lettuce grown on the International Space Station and China's Tiangong II contains about 30% less calcium than Earth-grown lettuce.
Potassium levels remain stable, but some antioxidants are reduced, indicating mineral shifts.
To address gaps, NASA is pursuing biofortification and growing nutrient-rich plants.
Fermented foods may enhance astronaut diets by delivering vitamins and supporting gut health for future space missions.