How many calories does an astronaut need in space?
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4 min read
Astronauts aboard the International Space Station (ISS) typically need between 2,500 and 3,800 calories per day, a range that often surpasses their pre-flight needs on Earth. This increased energy requirement is a direct result of the unique physiological and environmental challenges of living and working in microgravity, which directly impacts how many calories does an astronaut need in space.
