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Children's Taste Study to Increase Vegetable Intake in Preschoolers

A Pilot Study to Test the Influence of Vegetable Flavor Variety Using Herbs and Spices on Preschool Children's Vegetable Intake

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03043118
Acronym
CTS
Enrollment
48
Registered
2017-02-03
Start date
2015-02-28
Completion date
2016-11-02
Last updated
2022-04-05

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

Conditions

Pediatric Obesity

Keywords

Eating Behaviors, Preschool, Vegetable Intake

Brief summary

Studies have shown that when exposed to a variety of food and flavor options people tend to consume more than when only one item is presented. This strategy has been used to increase vegetable intake in adults and during snacktime in children. Increasing vegetable consumption in children is important because higher vegetable intake has been associated with reduced risk of disease and because vegetables can help prevent weight gain by lowering the energy density of a meal. The purpose of this study was to investigate the effects of using herb and spice blends to create flavor variety in carrots as a model vegetable in a laboratory test meal. We predict that children will consume more vegetables and that the energy density of the meal will be lower when a variety of seasoned carrots are presented in comparison to a single flavor. A secondary goal of the study was to determine other influences that may predict children's liking and intake of seasoned vegetables, such as previous exposure, infant feeding practices, and genetic bitter sensitivity.

Interventions

OTHERVariety Intervention

Vegetable flavor variety created with multiple herb and spice blends

Sponsors

Penn State University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
3 Years to 5 Years
Healthy volunteers
Yes

Inclusion criteria

* Acceptance of test meal foods * Generally healthy

Exclusion criteria

* Food allergies * Medications (prescription or OTC) that can affect taste, smell or appetite * Medical conditions

Design outcomes

Primary

MeasureTime frameDescription
Change in Meal Energy DensityBaseline and 1 weekCalculated from the total calories consumed divided by the grams of food eaten
Change in Total Food IntakeBaseline and 1 weekConsumption is measured by pre- and post- weights of all meal items offered in both the variety and no variety conditions
Chang in Vegetable IntakeBaseline and 1 weekConsumption is measured by pre- and post- weights of carrot offered in both the variety and no variety conditions

Secondary

MeasureTime frameDescription
Home Spice ChecklistBaselineA comprehensive checklist of 34 herbs and spices for parents to fill out at home to evaluate children's overall herb and spice exposure
Infant Feeding PracticesBaselineA survey of maternally reported feeding practices, include breastfeeding, formula feeding, and introduction to solid foods.
Liking of Broccoli with Herbs and SpicesBaselineLiking is measured using a child friendly 5-pt hedonic scale; pilot data for future studies looking to apply this technique to green vegetables
Liking of Carrots with Herb and Spice BlendsBaselineLiking is measured using a child friendly 5-pt hedonic scale
Spice Intake QuestionnaireBaselineA survey of maternally reported herb and spice consumption during pregnancy and breastfeeding as well as current home use

Other

MeasureTime frameDescription
AgeBaselineAge of the participant on visit 1
HeightBaselineHeight measured in cm on a stadiometer
WeightBaselineWeight measured to the 0.1 pounds using a digital scale
6-n-propylthiourcacil SensitivityBaselineChildren switch and spit a 56 umol solution of 6-n-propylthiouracil and are classified as tasters if it described as bitter or yucky and non-tasters if it's described as nothing or like water.
Body Mass IndexBaselineCalculated from height and weight (kg/m\^2)
Children's Eating Behavior QuestionnaireBaselineA validated parent-reported questionnaire on children's typical eating behaviors and attitudes toward foods
Family DemographicsBaselineA parent-reported questionnaire
Preschool Adjusted Liking ScaleBaselineA questionnaire to assess children's liking of various common foods and daily activities.
Parental Feeding PracticesBaselineA parent-reported questionnaire on typical feeding practices

Countries

United States

Outcome results

None listed

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