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A Study on the Relationship Between Table manner, Fifteen Millimeters from the Tip of the Chopsticks, No More Than Three Centimeters, and Mealtime Duration

A Study on the Relationship Between table manner, Fifteen Millimeters from the Tip of the Chopsticks, No More Than Three Centimeters, and Mealtime Duration - The Relationship Between Table Manners and Meal duration

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000060338
Enrollment
40
Registered
2026-01-13
Start date
2026-01-13
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 individuals

Interventions

First, participants will eat one piece of tofu measuring 4x6x5 cm. After a one-minute interval, they will eat twelve pieces of tofu, each measuring 2x2x2.5 cm. For each eating session, the following i

Sponsors

Fujita health university
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Individuals who, after receiving a thorough explanation regarding participation in this study, have provided written consent based on sufficient understanding and of their own free will. 2. Individuals who are at least 20 years old but under 60 years old at the time consent is obtained.

Exclusion criteria

Exclusion criteria: 1. Individuals currently undergoing treatment for underlying conditions such as poorly controlled diabetes (HbA1c >7%) or kidney disease (self-reported) 2. Others deemed inappropriate by the principal investigator or co-investigators 3. Individuals with allergies to tofu, rice, or eggs

Design outcomes

Primary

MeasureTime frame
Comparison within and between individuals regarding the relationship between the length of residue at the tip of chopsticks and mealtime duration

Secondary

MeasureTime frame
Comparison within and between individuals regarding the relationship between the length of food residue on chopstick tips and the number of bites Comparison within and between individuals regarding the relationship between the length of food residue on chopstick tips and the number of chews Comparison within and between individuals regarding the relationship between the length of food residue on chopstick tips and the chewing tempo

Countries

Japan

Contacts

Public ContactKatsumi Iizuka

Fujita health university Department of Clinical Nutrition, Faculty of Medicine

katsumi.iizuka@fujita-hu.ac.jp0562-93-2329

Outcome results

None listed

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