Good bacteria vs. bad cramps: probiotics tested for menstrual relief

NCT ID NCT07530081

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether taking a daily probiotic supplement can reduce menstrual pain and premenstrual symptoms in women. 150 women with moderate-to-severe period pain will take either a high or low dose of probiotics or a placebo for four menstrual cycles. Researchers will track changes in pain, mood, and sleep quality using standard questionnaires.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Probiotic (Lactobacillus rhamnosus F-1)

What this could lead to

If it works, this could offer a natural, side-effect-free option for managing period pain and premenstrual symptoms.

What could go wrong

This is a small, early-stage trial with no phase designation. Probiotics may not outperform placebo, and results may not apply to everyone.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

dysmenorrhea

As listed by the trial registrant

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

Contacts and locations

Locations

  • China Medical University Hospital

    Taichung, 404, Taiwan