Effect of ingestion of Kale (Brassica oleracea) juice on physical size, intelligence, and common cold in primary school children -An open label study -

Effect of ingestion of Kale (Brassica oleracea) juice on physical size, intelligence, and common cold in primary school children -An open label study - - Effect of ingestion of Kale (Brassica oleracea) juice on physical size, intelligence, and common cold in primary school children

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034817

Enrollment

600

Registered

2018-11-08

Start date

2016-09-26

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 subject

Interventions

Intake of kale juice for 8 consecutive months Not intake of kale juice for 8 consecutive months

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) Healthy boys and girls from elementary school 2 to 4 grade (2)The children and their parent (or guardian) can understand this study and have the written informed consent

Exclusion criteria

Exclusion criteria: (1) Subjects having physical and mental developmental disabilities, or a severe disease (2) Subjects taking antioxidant functional health foods or supplements (3)Subjects receiving anticoagulants or the intake restriction vitamin K (4) Subjects who cannot drink kale juice, (5) Subjects having allergy to brassica vegetable or dextrin (6) Subjects having a plan of moving during the test period (7)Subjects deemed unsuitable by the investigator

Design outcomes

Primary

Measure	Time frame
Physical size, Upper respiratory tract infection and diarrhea, Intelligence test (WISC-IV)	—

Countries

Asia(except Japan)

Contacts

Public ContactChie Tarumizu

FANCL Corporataion Research Institute

chie_0904@fancl.co.jp+81-45-820-3443

Outcome results

None listed

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