Space gut check: probiotics may boost astronaut immunity

NCT ID NCT02618005

First seen Jan 09, 2026 · Last updated May 19, 2026 · Updated 16 times

Summary

This study looked at whether taking probiotics (LcS) every day can help astronauts' immune systems and gut bacteria stay healthy during long stays on the International Space Station. Ten astronauts who lived in space for at least 3 months took part. Researchers measured changes in their gut microbes and immune markers before, during, and after their mission.

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Contacts and locations

Locations

  • Japan Aerospace Exploration Agency

    Ibaraki, Japan

Conditions

Explore the condition pages connected to this study.