Effects of the timing of meal or green tea intake on health-related parameters in adults and elderly people

Effects of the timing of meal or green tea intake on health-related parameters in adults and elderly people - Effects of the timing of meal or green tea intake on health-related parameters in adults and elderly people

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059514

Enrollment

Registered

2025-10-25

Start date

2025-10-25

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

None listed

Interventions

Intake of meal or green tea in morning (morning group) Intake of meal or green tea in lunch (lunch group) Intake of meal or green tea in dinner (dinner group)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 18 yeras-old <=, 80 yeras-old > Obtained written informed consent from the participant before participation.

Exclusion criteria

Exclusion criteria: 1)Individuals with diabetes, renal disorder, dyslipidemia, etc. that require dietary restrictions, and those treated for these conditions. 2)Individuals who taking antipsychotic or hormonal agents that may affect appetite. 3)Individuals who have experienced physical problems in the past due to a blood test. 4)Individuals who have food allergies. 5)individuals who are set pacemaker and metal in body (excluding dental filling). 6)individuals who are engaged shift work and travel with jetlag within 2 weeks. 7)Individuals who have irregular menstrual patterns, Individuals who are or are possibly pregnant. 8)Individuals who are using depression, sleeping, steroid medications. 9)Individuals who suffered from sleep apnea. 10)Individuals who are smoker, Individuals who are habitual drinkers. 11)Individuals who routinely perform strenuous aerobic exercise.

Design outcomes

Primary

Measure	Time frame
Interstitial fluid glucose levels	—

Secondary

Measure	Time frame
estradiol and progesterone	—

Countries

Japan

Contacts

Public ContactSaeka Fuke

Institute of Science Tokyo School of Environment and Society

fuke.s.75c0@m.isct.ac.jp03-5734-2904

Outcome results