Effects of the intake of foods containing Bacillus natto on the intestinal environment and the skin condition

Effects of the intake of foods containing Bacillus natto on the intestinal environment and the skin condition - Effects of the intake of foods containing Bacillus natto on the intestinal environment and the skin condition

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000051504

Enrollment

Registered

2023-07-10

Start date

2023-04-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Japanese subjects

Interventions

Duration: Intake of Bacillus natto chewables (8 weeks), Washout period (more than 8 weeks), Intake of placebo chewables (8 weeks) Administration: Take one chewable per day after the dinner. Duratio

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Japanese males and females aged over 18 years old at the time of informed consent. 2. Subjects who agree to participate in this study with a written informed consent after receiving sufficient explanation relating to this study.

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
The transdermal moisture transpiration at 8 weeks after consumption	—

Secondary

Measure	Time frame
Stratum corneum moisture content, collagen score, skin viscoelasticity, fecal components, questionnaire (defecation, health condition, skin condition) at 8 weeks after consumption	—

Countries

Japan

Contacts

Public ContactMotoko Takaoka

Kobe College School of Human Sciences

takaoka@mail.kobe-c.ac.jp0798-51-8668

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026