Diet, Healthy
Conditions
Keywords
child, restaurant, nudging, repeated exposure, diet, health
Brief summary
Restaurants are normative eating contexts for many families. Restaurant meals tend to be higher in calories and lower in nutritional quality than those prepared at home. Targeting children's food selection in restaurants has the potential to improve diet quality, attenuate excess energy intake, and shape healthy habits. The objective of this study is to make healthier kids' meal options more appealing and easier to choose via an in-restaurant intervention that combines repeated exposure and choice architecture strategies. Six locations of a quick-service restaurant will be paired based on income levels in the surrounding census tracts. A location from each pair will be randomized to each study group (intervention, control). Recruitment and data collection will be conducted across 3 cohorts, with recruitment conducted during a family's regular visit. Study participation will involve 7 more visits to the location where the family was recruited, 6 of which will be during an exposure period of about 2 months. Families in intervention restaurants will receive placemats promoting healthier featured kids' meals. Participating families will also receive a frequent diner card which, after purchasing one of the featured healthier kids' meals across 6 occasions, makes them eligible for a free kids' meal of their choice during a predetermined redemption period. In the control group, generic placemats will be provided, and participating families will be provided with frequent diner cards that can be used for any kids' meals. The aims of this study are: (1) to test effects of a healthier kids' meal intervention on children's meal orders, and (2) to test effects of a healthier kids' meal intervention on children's dietary intake. It is hypothesized that (1a) children in the intervention restaurants will be more likely than controls to select one of the promoted healthier kids' meals at post-test, (1b) children in the intervention group will order fewer calories and desserts and less saturated fat, sodium, and sugar at post-test versus controls, (1c) the promoted healthier meals will make up a greater percentage of kids' meals ordered in intervention restaurants versus controls, based on sales data across the study period, and (2) compared to controls, children in the intervention group will consume fewer calories and less saturated fat, sodium, and sugar in the restaurant at post-test.
Detailed description
Restaurants are normative eating contexts for many families. Restaurant meals tend to be higher in calories and lower in nutritional quality than those prepared at home. Targeting children's food selection in restaurants has the potential to improve diet quality, attenuate excess energy intake, and shape healthy habits. The objective of this study is to make healthier kids' meal options more appealing and easier to choose via an in-restaurant intervention that combines repeated exposure and choice architecture strategies. Six locations of a quick-service restaurant will be paired based on income levels in the surrounding census tracts. A location from each pair will be randomized to each study group (intervention, control). Recruitment and data collection will be conducted across 3 cohorts. After recruitment, families will be asked to order and eat like they normally would. All participating families will then complete measures of children's orders, intake, and demographics. Then families will receive placemats and frequent diner cards. Families in intervention restaurants will receive placemats promoting healthier featured kids' meals. These families will also receive a frequent diner card, which after purchasing one of the featured healthier kids' meals across 6 occasions, makes them eligible for a free kids' meal of their choice during a predetermined redemption period. In the control group, generic placemats will be provided following baseline data collection, and families will also be provided with frequent diner cards that can be used for any kids' meals. During subsequent exposure periods, lasting about 2 months per cohort, families will return to the restaurant location where they were recruited on a weekly basis. Placemats will be available at the restaurant entrance, and corresponding signage will be displayed in the restaurant. In intervention restaurants, signs will advertise promoted meals and the option to select a toy in place of dessert. Participating children will be able to use their frequent diner card during this time to earn a free meal during the subsequent redemption period. Families will also be asked to complete a brief online survey once per week to monitor restaurant patronage. In each restaurant, study staff will conduct observations of a subsample of participating family and server interactions. Finally, post assessments will be completed during predetermined redemption periods, lasting about 3 months per cohort. Placemats and signage will still be available in restaurants during this time. Study staff will collect the frequent diner cards and ask families to order and eat like they normally would and to not throw out any food or leftovers. Families will be able to redeem any earned free kids' meals during this time. When the family is done eating, study staff will approach the table to administer study measures assessing orders, perspectives on the meal, and intake. Finally, families will also be prompted to complete an online dietary recall (ASA24) after their post assessment. The specific aims of this study are: (1) to test effects of a healthier kids' meal intervention on children's meal orders, and (2) to test effects of a healthier kids' meal intervention on children's dietary intake. It is hypothesized that (1a) children in the intervention restaurants will be more likely than controls to select one of the promoted healthier kids' meals at post-test, (1b) children in the intervention group will order fewer calories and desserts and less saturated fat, sodium, and sugar at post-test versus controls, (1c) the promoted healthier meals will make up a greater percentage of kids' meals ordered in intervention restaurants versus controls, based on sales data across the study period, and (2) compared to controls, children in the intervention group will consume fewer calories and less saturated fat, sodium, and sugar in the restaurant at post-test.
Interventions
Participants will receive placemats promoting healthier featured kids' meals and the opportunity to redeem their kids' meal token for a toy instead of dessert. Families will also receive a frequent diner card, which after purchasing one of the featured healthier kids' meals across 6 occasions, makes them eligible for a free kids' meal of their choice during a predetermined redemption period.
Participants receive generic placemats and frequent diner cards that do not promote any specific kids' meal.
Sponsors
Study design
Masking description
Participants know which kids' meals are being promoted based on the materials received in each study group -- e.g., placemats and frequent diner cards promoting two featured (healthier) meals vs. all kids' meals -- but the health focus and research questions are not stated explicitly to the participants.
Intervention model description
A cluster-randomized design will be used. 6 locations of Anderson's, a regional quick-service restaurant in the Buffalo, New York, area will be paired based on income levels in the surrounding census tracts. A location from each pair will be randomized to each study group (intervention, control). Phased data collection will occur, with each pair of restaurants assigned to a cohort. There is also a pilot arm, consisting of separate children participating in taste tests prior to randomization to finalize the healthier meals to be promoted in the intervention.
Eligibility
Inclusion criteria
* Fluent in English (parent/guardian \& child) * 18 years or older (parent/ guardian) * Between the ages of 4-8 years (child) * Eats food from restaurants at least 2-3 times per month (child) * Does not have allergies that preclude safe participation in the study (child) * Eating a meal in the restaurant at the time of recruitment/baseline assessment * Did not participate in pilot phase of this study, which involved taste tests of possible healthier meal options at the same restaurant chain
Exclusion criteria
* Is under 18 years of age (parent/ guardian) * Does not have a child in the range of 4-8 years * Does not speak English fluently (parent/guardian \& child) * Does not eat food from a restaurant at least 2-3 times per month (child) * Has food allergies that preclude safe participation in the study (child) * Not eating a meal in the restaurant at recruitment/baseline * Participated in pilot phase of this study, which involved taste tests of possible healthier meal options at the same restaurant chain
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Meal Type Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Whether a healthier children's meal or other children's meal was ordered (bundled meal including promoted healthy main dish, healthy side, and healthy beverage). Counts reported indicate the number of children who ordered a healthy bundled meal. |
| Change in Meal Type Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Whether a healthier children's meal or other children's meal was ordered. Counts reflect the raw change in number of participants ordering the bundled healthy meal from baseline to post-test, by group. |
| Total Calories Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total calories ordered |
| Change in Total Calories Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total calories ordered |
| Total Saturated Fat Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total saturated fat ordered. |
| Change in Total Saturated Fat Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total saturated fat ordered. |
| Total Sugar Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total sugar ordered. |
| Change in Total Sugar Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total sugar ordered. |
| Total Sodium Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total sodium ordered. |
| Change in Total Sodium Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Nutrition information provided by the restaurant will be combined with parent report of children's orders to calculate total sodium ordered. |
| Dessert Ordered for Child in Restaurant | Post-test (about 4 months after recruitment) | Whether or not a dessert was ordered. Counts below reflect the number of children ordering a dessert at post-test. |
| Change in Dessert Ordered for Child in Restaurant | Baseline, midpoints 1-9 (weekly assessments about 2 months after recruitment), post-test (about 4 months after recruitment) | Whether or not a dessert was ordered. Numbers below reflect change in likelihood of ordering dessert from baseline to post-test in the context of the generalized linear mixed model with all time points (baseline, midpoints 1-9, post-test). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Calories Consumed at Restaurant by Child in Restaurant | Post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total calories in the full item to calculate calories consumed. |
| Changes in Calories Consumed at Restaurant by Child in Restaurant | Baseline, post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total calories in the full item to calculate calories consumed. |
| Saturated Fat Consumed at Restaurant by Child in Restaurant | Post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total saturated fat in the full item to calculate saturated fat consumed. |
| Changes in Saturated Fat Consumed at Restaurant by Child in Restaurant | Baseline, post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total saturated fat in the full item to calculate saturated fat consumed. |
| Sugar Consumed at Restaurant by Child in Restaurant | Post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total sugar in the full item to calculate sugar consumed. |
| Changes in Sugar Consumed at Restaurant by Child in Restaurant | Baseline, post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total sugar in the full item to calculate sugar consumed. |
| Sodium Consumed at Restaurant by Child in Restaurant | Post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total sodium in the full item to calculate sodium consumed. |
| Changes in Sodium Consumed at Restaurant by Child in Restaurant | Baseline, post-test (about 4 months after recruitment) | Children's dietary intake will be measured using plate waste methodology. Grams consumed will be converted to percentages using total grams from pre-weights, and these percentages will be multiplied by the total sodium in the full item to calculate sodium consumed. |
Countries
United States
Contacts
University at Buffalo
Participant flow
Recruitment details
For the RCT, 240 parents and 240 children were recruited and enrolled in restaurants over four cohorts (Summer 2021-Summer 2024). 236 of the families were randomized as described herein. Recruitment occurred across the restaurants' 6 locations, 2 per year. Prior to this, 74 participants (37 parents, 37 children) participated in a pilot phase to finalize the promoted meals for the study. Those in the pilot phase were not involved in the RCT and were never randomized.
Pre-assignment details
Four participants were excluded from randomization to groups because they did not complete necessary baseline procedures (providing complete data on child's order at baseline). Generally this was because families changed their minds about participating between consenting and providing this information.
Baseline characteristics
| Characteristic | — |
|---|---|
| Age, Continuous | 6.5 years STANDARD_DEVIATION 1.4 |
| Parent age (continuous) | 39.4 years STANDARD_DEVIATION 7.5 |
| Parent race/ethnicity, customized American Indian Alaska Native | 0 Participants |
| Parent race/ethnicity, customized Asian | 2 Participants |
| Parent race/ethnicity, customized Black | 6 Participants |
| Parent race/ethnicity, customized Multiracial | 1 Participants |
| Parent race/ethnicity, customized Refused to answer | 0 Participants |
| Parent race/ethnicity, customized White | 118 Participants |
| Parent sex (male/female) Female | 88 Participants |
| Parent sex (male/female) Male | 33 Participants |
| Race/Ethnicity, Customized American Indian Alaska Native | 1 Participants |
| Race/Ethnicity, Customized Asian | 0 Participants |
| Race/Ethnicity, Customized Black | 3 Participants |
| Race/Ethnicity, Customized Multiracial | 16 Participants |
| Race/Ethnicity, Customized Refused to answer | 1 Participants |
| Race/Ethnicity, Customized White | 85 Participants |
| Region of Enrollment United States | 210 participants |
| Sex: Female, Male Female | 56 Participants |
| Sex: Female, Male Male | 49 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | 0 / 214 | 0 / 258 | 0 / 74 |
| other Total, other adverse events | 0 / 214 | 0 / 258 | 0 / 74 |
| serious Total, serious adverse events | 0 / 214 | 0 / 258 | 0 / 74 |