Space gut check: probiotics studied on ISS crew

NCT ID NCT02618005

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether taking a daily probiotic drink can help keep astronauts' immune systems and gut bacteria healthy during long stays in space. Ten astronauts on the International Space Station took the probiotic and provided stool, blood, and saliva samples before, during, and after their mission. The goal was to understand how space travel affects the body and if probiotics might offer protection.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Japan Aerospace Exploration Agency

    Ibaraki, Japan