UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060470
Receipt number R000069184
Scientific Title Promoting Sustainable Food Systems Among Athletes: An Educational Intervention Combining Collaborative Pea Cultivation and Plant-Based Protein Supplementation
Date of disclosure of the study information 2026/01/30
Last modified on 2026/01/26 18:19:27

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Basic information

Public title

Promoting Sustainable Food Systems Among Athletes: An Educational Intervention Combining Collaborative Pea Cultivation and Plant-Based Protein Supplementation

Acronym

Promoting Sustainable Diets in Athletes Through Collaborative Pea Growing and Plant-Based Protein Supplement Use

Scientific Title

Promoting Sustainable Food Systems Among Athletes: An Educational Intervention Combining Collaborative Pea Cultivation and Plant-Based Protein Supplementation

Scientific Title:Acronym

Promoting Sustainable Food Systems Among Athletes: An Educational Intervention Combining Collaborative Pea Cultivation and Plant-Based Protein Supplementation

Region

Japan


Condition

Condition

Not applicable

Classification by specialty

Not applicable Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We will examine how providing nutrition education that combines cultivation activities conducted in collaboration with athletes and the intake of pea protein affects awareness of and behavior change toward Sustainable Diet System when making food choices.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change from baseline to post-intervention in the proportion of plant-based protein supplement intake (%, proportion of total protein supplement intake)

Key secondary outcomes

Carbon-footprint-based quantification of the environmental impact of protein supplement intake across the production-to-consumption life cycle (kgCO2e; per participant and/or per day, as defined)

Measurement of sustainability awareness related to food choice (questionnaire score; instrument specified)


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment

No need to know


Intervention

No. of arms

1

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Food Behavior,custom

Interventions/Control_1

In Intervention 1, participants complete a pre-intervention questionnaire, followed by SDS-focused nutrition education (a lecture). Participants then engage in pea cultivation activities in collaboration with athletes, with cultivation progress and related records shared among participants. In addition, participants freely consume pea protein and whey protein for one month each, with intake limited to a range that does not exceed each participant's habitual intake. Intake is quantified by collecting and measuring the remaining amount of the supplements. After completing the intervention, participants complete a post-intervention questionnaire.

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

University students or athletes of the same age group (>=18 years), including those from this university and other universities; both sexes eligible.

Aged >=18 years.

Engaging in regular sport-specific training at least four times per week (American College of Sports Medicine, 2009).

Having a habitual whey protein supplement intake of at least twice per week during the past month (habitual use category based on Barrack et al., 2020).

Having received a sufficient explanation of the study and, throughout the study period (approximately 4 months), being able to participate in the orientation session, nutrition education, cultivation record-keeping, intake record-keeping, and pre- and post-intervention questionnaires; able to use communication tools such as LINE; and providing written informed consent to participate voluntarily.

Key exclusion criteria

Exclusion criteria

The protein supplements used in this study are derived from peas and milk. Individuals with a nut allergy or a milk allergy are excluded for safety reasons, as intake may trigger an allergic reaction.

Individuals who habitually consume only plant-based protein supplements are excluded because a pre-post comparison would not be feasible and this does not align with the study objectives.

Discontinuation criteria

Withdrawal from participation or withdrawal of consent at the participant's request.

Occurrence of physical discomfort/adverse symptoms considered to be caused by intake of the provided foods.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name Jun
Middle name
Last name Yasuda

Organization

Tokai University

Division name

Shonan Campus, Faculty of Health Sciences

Zip code

259-1292

Address

4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan

TEL

0463-63-4394

Email

yasuda.jun.w@tokai.ac.jp


Public contact

Name of contact person

1st name Jun
Middle name
Last name Yasuda

Organization

Tokai University

Division name

Shonan Campus, Faculty of Health Sciences

Zip code

259-1292

Address

Kanagawa 259-1292, Japan

TEL

0463634394

Homepage URL


Email

yasuda.jun.w@tokai.ac.jp


Sponsor or person

Institute

Tokai University

Institute

Department

Personal name



Funding Source

Organization

Tokai University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Tokai University Ethics Committee for Research Involving Human Subjects

Address

Kanagawa 259-1292, Japan

Tel

0463-58-1211

Email

research1117@tokai.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

東海大学湘南キャンパス(神奈川県)


Other administrative information

Date of disclosure of the study information

2026 Year 01 Month 30 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2026 Year 01 Month 01 Day

Date of IRB

2025 Year 12 Month 22 Day

Anticipated trial start date

2026 Year 01 Month 01 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 01 Month 26 Day

Last modified on

2026 Year 01 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069184