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Survey on polyphenol intake: an open survey

Survey on polyphenol intake: an open survey - Survey on polyphenol intake: an open survey

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000038389
Enrollment
64
Registered
2019-10-25
Start date
2019-11-02
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

None (Healthy adults)

Interventions

None listed

Sponsors

Ochanomizu University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Males and females aged 30 to 69 years-old (2) BMI: 18.5 - 25.0 (3) Subjects who can maintain normal lifestyle during the survey period (4) Subjects who can make self-judgment and are voluntarily giving written informed consent

Exclusion criteria

Exclusion criteria: (1) Subjects who have serious complication or suffer from urgent need of medical treatment (2) Subjects who can't stop using medicines, supplements and/or functional foods (including Food for Specified Health Uses or Foods with Function Claims) that may affect the investigation during the survey periods (3) Subjects who have a history of and/or contract drug addiction and/or alcoholism (4) Subjects who have meals less than twice a day (5) Subjects who work night shifts or shift workers (6) Subjects who have abnormality in renal function (7) Subjects who repeats cystitis frequently (8) Subjects whose menstruation is predicted during the test periods (9) Subjects who have a history and/or a surgical history of digestive disease affecting digestion and absorption (10) Subjects who have a history of and/or contract serious diseases (eg, heart disease, liver disease, endocrine disease, thyroid disease, adrenal disease and/or metabolic disease) (11) Subjects who are pregnant, lactation, or planning to become pregnant (12) Subjects who are planning to participate and/or participate in other clinical studies (13) Subjects who are judged as unsuitable for the current study by the investigator for other reasons

Design outcomes

Primary

MeasureTime frame
The correlation between dietary polyphenol intake and the concentration of total polyphenol in 24 hour-urine and first morning-urine samples

Secondary

MeasureTime frame
The concentration of antioxidant parameters (eg. total antioxidant capacity, 8-OHdG, 8-isoprostane) in 24 hour-urine and first morning-urine samples

Countries

Japan

Contacts

Public ContactKazuo Kondo

Ochanomizu University Endowed Research Depeartment "Food for Health"

kondo.kazuo@ocha.ac.jp03-5978-5810

Outcome results

None listed

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