Study on effects of functional fermented tea leaf powder, MarugotoHakkocha, made from green tea leaves and loquat leaves on postprandial blood glucose levels

Study on effects of functional fermented tea leaf powder, MarugotoHakkocha, made from green tea leaves and loquat leaves on postprandial blood glucose levels - Effects of fermented tea leaf powder on postprandial blood glucose levels

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000029202

Enrollment

Registered

2017-09-20

Start date

2017-09-20

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

Postprandial huperglycemia

Interventions

The subjects ingested a single intake of the active meal, and injested a single intake of the placebo meal after 7 days or 14 days. The subjects ingested a single intake of the active meal, and injes

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Healthy male and female between 20 and 70 years old 2) Those who are liable to rise in postprandial blood glucose levels during screening tests 3) Individuals who can refrain from drinking and eating during the test period 4) Individuals who understand the purpose and contents of the experiment

Exclusion criteria

Exclusion criteria: 1)Individuals taking drugs, supplements and healthy foods which affect the blood glucose levels 2)Those who can not stop taking supplements or health foods that may affect blood glucose levels during the test period 3)Subjects who are contracting kidney and/or liver diseases 4)Those who have been diagnosed with diabetes 5)Individuals with a chronic diseases 6)Person who donated more than 400 ml of blood within 3 months prior to the study 7)Those who can not stop taking a large amount of green tea or black tea during the test period 8)Pregnant women, or women with intending to become pregnant, and lactating woman 9)Individuals participating or intending to participate in a drug administration test 10)Individuals judged by the doctor to be unsuitable

Design outcomes

Primary

Measure	Time frame
Postprandial blood glucose level,Blood insulin concentration	—

Secondary

Measure	Time frame
Body weight,Blood pressure,Serum LDL-cholesterol,Serum HDL-cholesterol,Serum triglyceride,White blood cell count,Red blood cell count,Hemoglobin,Hematocrit,Platelet count,Total protein,Albumin,GOT,GPT,LDH,Total bilirubin,ALP,Gamma GTP,Urea nitrogen,Creatinine,Uric acid,HbA1c,Urinary sugar, Urinary protein	—

Countries

Japan

Contacts

Public ContactHideki Ito

Univercity of Nagasaki Regional Partnership Center

katanaka@sun.ac.jp095-813-5500

Outcome results

None listed

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