Effectiveness of Digital Tool-Based Feedback on Urinary Sodium-to-Potassium Ratio and Vegetable/Fruit Intake for Hypertension Prevention in Young Adults

Effectiveness of Digital Tool-Based Feedback on Urinary Sodium-to-Potassium Ratio and Vegetable/Fruit Intake for Hypertension Prevention in Young Adults: A Two-Arm Parallel-Group Randomized Controlled Pilot Trial - NaK-Care Trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000057679

Enrollment

Registered

2025-04-23

Start date

2025-04-23

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 young adults

Interventions

Participants assigned to the intervention group will utilize a portable device to measure their urinary sodium-to-potassium ratio over a four-week period. Additionally, they will receive immediate fee

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Male and female participants aged between 18 and 30 years. Individuals not currently diagnosed with hypertension by a physician. Willingness to participate in the study and comply with study instructions.

Exclusion criteria

Exclusion criteria: Individuals currently undergoing treatment for hypertension, including antihypertensive medications. Individuals with severe heart disease, kidney disease, or other chronic illnesses. Pregnant or breastfeeding women. Individuals participating in other clinical trials during the study period.

Design outcomes

Primary

Measure	Time frame
Urinary sodium-to-potassium ratio assessed by 24-hour urine collection	—

Secondary

Measure	Time frame
Vegetable and fruit intake	—

Countries

Japan

Contacts

Public ContactKenichiro Yasutake

Nakamura Gakuen University Department of Nutritional Sciences

yasutake@nakamura-u.ac.jp0928512531

Outcome results

None listed

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