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Study on effects of mixed fermented tea leave powder made from unripe orange fruits and green tea leaves on cognitive functions

Study on effects of mixed fermented tea leave powder made from unripe orange fruits and green tea leaves on cognitive functions - Effects of fermented tea leave powder made from unripe orange fruits and green tea leaves on cognitive function

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000045217
Enrollment
60
Registered
2021-08-22
Start date
2021-08-21
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 adult

Interventions

The subjects ingested the placebo meal for twelve weeks. The subjects ingested the active meal for twelve weeks.

Sponsors

Univercity of Nagasaki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy male and female between 60 and 89 years old Subjects who feel the decline in memory Individuals who refrain from binge eating Individuals who understand the purpose and contents of the experiment

Exclusion criteria

Exclusion criteria: Subjects who are diagnosed with dementia Subjects who has suffered by serious cerebrovascular disease, neurological disorder and visceral diseases Those who can not stop taking a large amount of green tea or black tea during the test period Subjects who may have food allergies Pregnant women, or women with intending to become pregnant, and lactating woman Individuals participating or intending to participate in a drug administration test Subjects who get sick by feeding caffeine Alcoholics Individuals can't agree with this study Individuals judged by the doctor to be unsuitable

Design outcomes

Primary

MeasureTime frame
multiple tests of cognitive functions

Secondary

MeasureTime frame
a blood pressure

Countries

Japan

Contacts

Public ContactHideki Ito

Univercity of Nagasaki Regional Partner Center

katanaka@sun.ac.jp0958135216

Outcome results

None listed

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