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Evaluating Effectiveness of Spices and Herbs to Increase Vegetable Intake Among Military

Evaluating Effectiveness of Spices and Herbs to Increase Vegetable Intake Among Military

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05499858
Enrollment
400
Registered
2022-08-12
Start date
2022-11-06
Completion date
2024-12-31
Last updated
2025-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dietary Intake

Keywords

Military, Vegetable intake, Food photography

Brief summary

The goal of this study is to evaluate whether the addition of spices and herbs to the vegetables served to military personnel on a large military base can increase vegetable intake as compared to typical vegetable offerings without spices and herbs. A two-phase intervention will be conducted on base at Naval Station Activity Bethesda (NSAB) to evaluate whether the addition of spices and herbs to vegetable dishes can increase vegetable intake amongst military service members. Phase I will involve extensive engagement with key stakeholders involved in current vegetable consumption at NSAB, including military service members, staff dietitians, the health promotion specialist on base, barracks managers, military culinary specialist, unit leaders, morale welfare and recreations/single sailor program leaders, base senior enlisted leaders, and the base commander. Questionnaires will be administered evaluating current barriers to vegetable intake at NSAB, familiarity with and liking of a variety of spices and herbs, and sensory testing of several vegetables with and without spices and herbs. The recipes in the vegetable sensory testing comparisons will be identical other than spices and herbs content. Phase II will involve will focus upon the direct measurement of vegetable intake (primary outcome) and vegetable linking (secondary outcome) among active-duty service members with spices and herbs and without spices and herbs. The vegetables will be provided as part of an entire meal on a grab and go plate. The other foods in the meal (proteins, starches, etc.) accompanying the vegetables will be kept consistently paired to vegetable recipes to minimize confounding. Vegetable intake will be assessed via cell phone pictures and liking will be assessed by a single 5-point Likert scale question.

Interventions

OTHERSpiced

Vegetables provided to volunteers will be spiced.

OTHERPlain

Vegetables provided to volunteers will be plain.

Sponsors

University of Maryland, Baltimore
CollaboratorOTHER
Henry M. Jackson Foundation for the Advancement of Military Medicine
CollaboratorOTHER
Pennington Biomedical Research Center
CollaboratorOTHER
McCormick Science Institute
CollaboratorINDUSTRY
Uniformed Services University of the Health Sciences
Lead SponsorFED

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Junior Service Member (E1-E4 or O1-O3) * Read and write English

Exclusion criteria

* Anyone under 18 years of age * Anyone not in the U.S. military

Design outcomes

Primary

MeasureTime frameDescription
Vegetable consumptionVolunteers will be provided with a series of heat and serve meal kits over approximately 2 month time period.Volunteers will provided with a heat and serve meal kit. Using the food photography mobile application (SmartIntake), volunteers will take a single photo of the meal kit after they have consumed a self-determined desired amount of food. The digital photo will be sent to Pennington Biomedical Research Center (PBRC) for analysis via the SmartIntake app. The team at PBRC will download the image and use a validated algorithm to estimate, in cups, the remaining vegetable component from the meal kit.
Phase I - Primary Outcome: United States Military - Menu Item SurveyVolunteers will be provided with a series of 8 recipes to evaluate over the course of a single taste testing session through study completion, an average of 1 year.Overall liking of menu item, specific ratings of the appearance, aroma, flavor, texture, and overall appeal of the menu item, and qualitative feedback on general impressions of the menu item

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026