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Effect of Daily Ingestion of the potatoes on improving minor ailments: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study

Effect of Daily Ingestion of the potatoes on improving minor ailments: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study - Beneficial effect of the potatoes on improving minor ailments

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000038876
Enrollment
16
Registered
2019-12-13
Start date
2019-12-25
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 adults

Interventions

Daily ingestion 75 g of the potato1 for 8 weeks. Daily ingestion 75 g of the potato2 for 8 weeks.

Sponsors

Hokkaido Information University
Lead Sponsor
Sapporo Medical University School of Medicine
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Subjects who agree to participate in this study with a written informed consent. 2. Subjects with a minor ailment.

Exclusion criteria

Exclusion criteria: 1. Subjects who are under physician's advice, treatment, and/or medication for schizophrenia, depression, mania, neurological disorders, and/or sleep disorders. 2. Subjects with serious cerebrovascular, cardiac, hepatic, renal, gastrointestinal diseases, and/or affected with infectious diseases requiring reports to the authorities. 3. Subjects with major surgical history relevant to the digestive system such as gastrectomy, gastrorrhaphy, enterectomy, etc. 4. Subjects with unusually high and/or low blood pressure and/or abnormal hematological data. 5. Subjects with severe anemia. 6. Pre- or post-menopausal women complaining of obvious physical changes. 7. Subjects who are at risk of having allergic reactions to drugs or foods especially based on potatoes, Betulaceae, Poaceae. 8. Subjects who regularly take medicine, functional foods, and/or supplements which would affect sleep and/or stress. 9. Heavy smokers, alcohol addicts or subjects with disordered lifestyle. 10. Subjects who donated either 400 ml whole blood within 16 weeks (women), 12 weeks (men), 200 ml whole blood within 4 weeks (men and women), or blood components within 2 weeks (men and women), prior to the current study. 11. Pregnant or lactating women or women who expect to be pregnant during this study. 12. Subjects who currently participate in other clinical trials, or participated within the last 4 weeks prior to the current study. 13. Any other medical and/or health reasons unfavorable to participation in the current study, as judged by the principal investigator.

Design outcomes

Primary

MeasureTime frame
Peripheral blood test after 8 weeks of ingestion.

Secondary

MeasureTime frame
Intestinal flora, heart rate variability, electroencephalogram during sleeping, sleeping record, urinary metabolites, urinary 8OHdG, 1,5-AG, VAS questionnaire assessed fatigue, questionnaire about subjects' background information.

Countries

Japan

Contacts

Public ContactJun NISHIHIRA

Hokkaido Information University Health Information Science Center

nishihira@do-johodai.ac.jp011-385-4430

Outcome results

None listed

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