Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT06119165
Other study ID # 23-1785
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date November 28, 2023
Est. completion date December 4, 2023

Study information

Verified date October 2023
Source University of North Carolina, Chapel Hill
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Purpose: The overall purpose of this study is to evaluate the impact of a suite of environmentally focused nudges on the nutritional quality of consumers' food selections. Participants: ~2,000 US adults ages 18-25, at least 25% currently enrolled full-time in college, recruited from CloudResearch Prime Panels. Procedures: Participants will be randomly assigned to view food products with or without environmental nudges (eco-labels, peer comparison message, and swaps). They will be asked to select items that they most wish to purchase and will then be asked a series of questions about the products and nudges. Questions will also include standard socio-demographic variables.


Description:

Participants will be recruited from CloudResearch Prime Panels (an online panel research company). Study participants include 2,000 young adults between 18 and 25 years old with at least 25% currently enrolled in college, recruited to match census distribution of race/ethnicity and gender. Participants will electronically acknowledge their consent to participate in the study. On the study platform (Qualtrics), participants will be randomly assigned to 1 of 2 arms with equal probability. Participants will complete a shopping task via an online 9-minute survey. They will view products displayed as if they were offered from a grocery store. Products will be frozen meals, such as burritos and pizza, snack items such as dried fruit and chips, and protein items, such as ground beef and chicken breasts. They will then be instructed to select 1 item they most wish to purchase from each category. Participants in the experimental arm will shop and receive environmental nudges in the form of labels, feedback, peer comparisons, and suggested product swaps. In the control arm, participants will conduct online shopping tasks without any environmental nudges. After selecting products, participants will answer questions about the products and labels, as well as standard socio-demographic questions.


Recruitment information / eligibility

Status Completed
Enrollment 2132
Est. completion date December 4, 2023
Est. primary completion date December 4, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 25 Years
Eligibility Inclusion criteria: - 18 to 25 years old - Currently resides in the United States Exclusion criteria: - Completion of the survey in <1/3 of the median completion time

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Environmental nudges
Participants will view protein, frozen meal, and snack products with eco-labels applied. For each category, they will then be instructed to select 1 item from that category they wish most to purchase. Categories will be shown in random order. If a participant selects a product with a red eco-label, they will be shown a peer comparison message and will be given an opportunity to switch to a product with a yellow or green eco-label.

Locations

Country Name City State
United States UNC Carolina Population Center Chapel Hill North Carolina

Sponsors (2)

Lead Sponsor Collaborator
University of North Carolina, Chapel Hill Wellcome Trust

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Nutri-Score Scores Healthfulness of product selections (operationalized as products' Nutri-Score scores). Products' Nutri-Score scores are calculated using the updated 2022 algorithm released by the Scientific Committee of the Nutri-Score (ScC). Scores range from -15 (Nutri-Score of "A") to 40 (Nutri-Score of "E"), with lower scores indicating a more healthful product selection. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Carbon Footprint Carbon footprint of product selections [operationalized as products' greenhouse gas emissions (GHGE) per 100g]. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Acceptability of Eco-Label Intervention Acceptability of eco-labels on products, measured by an item adapted from Vargas-Meza et al., 2019. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher acceptability of eco-labels. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Acceptability of Swaps Intervention Acceptability of environmental swaps, measured by an item adapted from Vargas-Meza et al., 2019. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher acceptability of swaps. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Acceptability of Peer Comparison Message Intervention Acceptability of peer comparison messages, measured by an item adapted from Vargas-Meza et al., 2019. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher acceptability of peer comparison messages. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Health Elaboration How much the participant reports thinking about the healthfulness of products when making selections. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher amount of thinking about the healthfulness of products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Taste Elaboration How much the participant reports thinking about the taste of products when making selections. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher amount of thinking about the taste of products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Cost Elaboration How much the participant reports thinking about the cost of products when making selections. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher amount of thinking about the cost of products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Environmental Sustainability Elaboration How much the participant reports thinking about the environmental sustainability of products when making selections. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "A great deal" (coded as 5), with higher scores representing a higher amount of thinking about the environmental sustainability of products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Perceived Healthfulness of Sustainable Products Participants' perceptions about the healthfulness of sustainable products. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "Extremely" (coded as 5), with higher scores representing a higher perceived healthfulness of sustainable products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Perceived Healthfulness of Unsustainable Products Participants' perceptions about the healthfulness of unsustainable products. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "Extremely" (coded as 5), with higher scores representing a higher perceived healthfulness of unsustainable products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Perceived Sustainability of Sustainable Products Participants' perceptions about the sustainability of sustainable products. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "Extremely" (coded as 5), with higher scores representing a higher perceived sustainability of sustainable products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Perceived Sustainability of Unsustainable Products Participants' perceptions about the sustainability of unsustainable products. Likert responses are on a 1 to 5 scale, from "Not at all" (coded as 1) to "Extremely" (coded as 5), with higher scores representing a higher perceived sustainability of unsustainable products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Purchase Intentions of Sustainable Products Participants' intentions to purchase a sustainable product in the next month. Likert responses are on a 1 to 5 scale, from "Not at all likely" (coded as 1) to "Extremely likely" (coded as 5), with higher scores representing a higher intention to purchase. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Purchase Intentions of Unsustainable Products Participants' intentions to purchase an unsustainable product in the next month. Likert responses are on a 1 to 5 scale, from "Not at all likely" (coded as 1) to "Extremely likely" (coded as 5), with higher scores representing a higher intention to purchase. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Injunctive Norms Participants' perceived approval from people important in their life for purchasing environmentally sustainable products. Likert responses are on a 1 to 5 scale, from "Strongly disagree" (coded as 1) to "Strongly agree" (coded as 5), with higher scores representing higher perceived approval about purchasing environmentally sustainable products. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
Secondary Descriptive Norms Participants' belief that most shoppers purchase environmentally sustainable foods when shopping for groceries. Likert responses are on a 1 to 5 scale, from "Strongly disagree" (coded as 1) to "Strongly agree" (coded as 5), with higher scores representing higher belief that most shoppers purchase environmentally sustainable foods. Immediately after exposure to intervention and product selection task, assessed during 1-time online study visit
See also
  Status Clinical Trial Phase
Completed NCT04506996 - Monday-Focused Tailored Rapid Interactive Mobile Messaging for Weight Management 2 N/A
Not yet recruiting NCT05218980 - Health-related Benefits of Introducing Table Olives Into the Diet of Young Adults: Olives For Health N/A
Not yet recruiting NCT04119791 - A Multidisciplinary Investigation of Cardiovascular Benefits of Wild Rice N/A
Recruiting NCT05660837 - Online Social Support Program for Physical and Mental Health of Filipino Migrant Domestic Workers in Hong Kong N/A
Completed NCT05098223 - Price Promotions on Purchases of Snacks N/A
Active, not recruiting NCT05400187 - Body Composition Assessment and Smart-phone Based Counselling on Healthy Eating and Weight Management N/A
Completed NCT03941392 - Nutritional Study in Spanish Pediatric Population
Completed NCT03378843 - Spermidine Intake and All-cause Mortality N/A
Completed NCT04596254 - Detection of Gut Metabolites in Mother's Milk Following Juice Intake N/A
Completed NCT04078646 - Influence of Proteins on the Bioavailability of Carotenoids N/A
Completed NCT05351853 - Metabolic Effects of Plant-based Diet N/A
Completed NCT04275843 - The Effects of Western Diet Patterns on Plasma Inflammatory and Cardio Metabolic Health Signatures in Middle-aged Adults N/A
Completed NCT05619276 - Acute Intervention to Assess the Impact of Practical Strategies for Healthy Eating N/A
Recruiting NCT05290064 - Effect of Ultra-processed Versus Unprocessed Diets on Energy Metabolism N/A
Completed NCT03967912 - MOVE UP Lifestyle Intervention for Caregivers N/A
Recruiting NCT05657730 - Study the Effect of Water Kefir Consumption on the Gut Microbiome in Healthy Adults N/A
Completed NCT05213273 - Nutritional Study on the Beneficial Effects of Canned Fish Consumption on Healthy Adult Population N/A
Active, not recruiting NCT04329962 - Metabolism and Absorption of Anthocyanins From Extract and Whole Blueberry Powder Confections in Healthy Adults N/A
Recruiting NCT04299685 - Family Factors of Eating Habits Among Adolescents
Completed NCT04917991 - Comparison Between Olive Oil and Palm Oil-enricHed chOCOlate Spreads (CHOCO) in Healthy Subjects N/A