Could a daily probiotic keep you regular? new study tests Bi66

NCT ID NCT06740500

Completed Symptom relief Sponsor: Huazhong University of Science and Technology Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether taking a probiotic called Bifidobacterium animalis subsp. lactis Bi66 every day for 8 months can improve bowel function in healthy adults who have fewer than 5 bowel movements per week. 117 participants took either the probiotic or a placebo and recorded their bowel habits and stool consistency. The researchers also checked changes in gut bacteria and other health markers.

What this could mean

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

Active substance: Bifidobacterium animalis subsp. lactis Bi66 (a probiotic)
What this could lead to: If it works, this could point toward a simple probiotic supplement to help with occasional constipation or irregular bowel movements.
What could go wrong: This is a small, completed trial in healthy adults, not a treatment for any disease. Results may not apply to people with gut disorders, and benefits may be modest.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

HEALTHY ADULT

Contacts and locations

Locations

Huazhong University of Science and Technology

Wuhan, Hubei, 430000, China

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