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Effects of consumption of the test food on psychological stress in healthy Japanese

Effects of consumption of the test food on psychological stress in healthy Japanese: a randomized, placebo-controlled, double-blind, parallel-group comparison study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT1030240202
Enrollment
112
Registered
2024-07-03
Start date
2024-07-10
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 individuals (Intended indications and effects: Reduction of psychological stress)

Interventions

Test food: Food containing Bacillus subtilis subsp. natto Duration: Eight weeks Administration: Take one capsule per day after breakfast. Test food: Placebo Duration: Eight weeks Administration: Take

Sponsors

Takara Tsuyoshi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Japanese 2. Men or women 3. Adults 4. Healthy individuals 5. Individuals who are judged as eligible to participate in this study by the physician based on the result of the Beck Depression Inventory-II (BDI-II) at screening (before intervention; Scr) 6. Individuals who usually feel tired or stress easily due to desk work 7. The top 68 individuals with the highest Total Mood Disturbance (TMD) score in the Profile of Mood States 2nd Edition (POMS2) at Scr

Exclusion criteria

Exclusion criteria: 1. Individuals who are undergoing medical treatment or have a medical history of malignant tumor, heart failure, and myocardial infarction 2. Individuals who have a pacemaker or an implantable cardioverter defibrillator (ICD) 3. Individuals who are currently undergoing treatment for any of the following chronic diseases: cardiac arrhythmia, liver disorder, chronic kidney disease, cerebrovascular disorder, rheumatic disease, diabetes mellitus, dyslipidemia, hypertension, or any other chronic diseases 4. Individuals who are taking "Foods for Specified Health Uses" or "Foods with Functional Claims" 5. Individuals who are taking or using medications (including herbal medicines) or supplements 6. Individuals who are allergic to medicines or foods related to the test product 7. Individuals who are pregnant, lactating, or planning to become pregnant during this study 8. Individuals who have been enrolled in other clinical studies within the last 28 days before the agreement to participate in this study or plan to participate another study during this study 9. Individuals who have mental health issues such as depression disorder, attention deficit/hyperactivity disorder (ADHD), or other issues 10. Individuals whose working form includes late-night shift or early-morning shift 11. Individuals who feel their sleeping time is irregular 12. Individuals who feel whose lifestyles (such as diet, exercise, and sleep) are irregular 13. Individuals who live with their infants less than one year old 14. Individuals who sleep with their children (1 to 6 years old) 15. Individuals who take foods that they consider to have a relaxing effect once weekly or more 16. Individuals who use items that they consider to have a relaxing effect once weekly or more 17. Individuals who are judged as ineligible to participate in this study by the physician

Design outcomes

Primary

MeasureTime frame
1. The measured value of TMD at eight weeks after intervention (8w)

Secondary

MeasureTime frame
1. The measured values of Tension-Anxiety (TA), Depression-Dejection (DD), Anger-Hostility (AH), Vigor-Activity (VA), Fatigue-Inertia (FI), Confusion-Bewilderment (CB), and Friendliness (F) at 8w 2. The amount of changes from Scr of TMD, TA, DD, AH, VA, FI, CB, and F at 8w 3. The measured values and amount of changes from Scr of "sleepiness on rising," "initiation and maintenance of sleep," "frequent dreaming," "refreshing," "sleep length," and each item in the OSA sleep inventory MA version (OSA-MA) at 8w 4. The measured values and amount of changes from Scr of visual analog scale (VAS) at 8w

Contacts

Public ContactNaoko Suzuki

ORTHOMEDICO Inc.

group_gakujutsu@orthomedico.jp+81-3-3818-0610

Outcome results

None listed

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