Fruits and vegetables at home (FLAM): a randomized controlled trial of the impact of fruits and vegetables vouchers in children from low-income families in an urban district of France

Buscail, Camille; Margat, Aurore; Petit, Stéphanie; Gendreau, Judith; Daval, Paul; Herçberg, Serge; Latino‐Martel, Paule; Maurice, Aurélie; Julia, Chantal

doi:10.1186/s12889-018-5908-5

Cited by 15 publications

(17 citation statements)

References 59 publications

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“…The PNNS questionnaire assesses the adherence to the main points of the French nutritional recommendations, first defined in 2001 ( Hercberg et al, 2008 ). The version used in this study was adapted from previous works ( Buscail et al, 2018 ; Méjean et al, 2010 ) and comprises twelve questions. The first eight items refer to the frequency of intake of bread and cereals, starch, legumes, milk and dairy products, meat/poultry/eggs, fish and seafood, fruits, and vegetables.…”

Section: Methodsmentioning

confidence: 99%

Influence of pro-obesogenic dietary habits on stress-induced cognitive alterations in healthy adult volunteers

Delgado

Dexpert

Sauvant

et al. 2021

Neurobiology of Stress

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Stress is a fundamental biological response that can be associated with alterations in cognitive processes. Unhealthy dietary habits are proposed to modulate this effect, notably through their pro-inflammatory potential. This cross-sectional study aimed to evaluate the influence of an obesogenic dietary pattern with inflammatory potential on stress-induced cognitive alterations in healthy volunteers. Fifty healthy adult participants were stratified into two diet groups: obesogenic vs. non-obesogenic, based on their self-reported consumption of fat, sugar, and salt, assessed by the French National Program for Nutrition and Health questionnaire and a food frequency questionnaire. Serum high-sensitive C-reactive protein (hsCRP) was measured as a marker of systemic inflammation using ELISA. Verbal memory and sustained attention were evaluated through the Verbal Recognition Memory (VRM) test and the Rapid Visual Information Processing (RVP) test respectively, from the Cambridge Neuropsychological Test Automated Battery. Assessments were performed before and after exposure to the psychological stressor Trier Social Stress Test (TSST). Stress response was evaluated by subjective stress perception, salivary cortisol, blood pressure, and heart rate. Twenty-two participants (44%) presented an obesogenic diet. Systemic inflammation was significantly higher in the obesogenic diet group ( p= 0.005). The TSST induced a significant stress response, regardless of dietary habits (Time effect p < 0.001). In the whole sample, exposure to TSST was associated with cognitive changes in the form of impaired performance on the VRM test and overall improved RVP scores. However, the obesogenic diet group exhibited an increased total number of false alarms (Time x Diet: p= 0.014) on the RVP test after TSST exposure as well as a greater impairment in immediate verbal recognition on the VRM test (Time x Diet: p= 0.002). This effect was not associated with the inflammatory component of the obesogenic diet. These results suggest that an obesogenic diet may sensitize healthy individuals to the detrimental effects of acute stress on cognitive performance.

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Section: Methodsmentioning

confidence: 99%

Influence of pro-obesogenic dietary habits on stress-induced cognitive alterations in healthy adult volunteers

Delgado

Dexpert

Sauvant

et al. 2021

Neurobiology of Stress

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“…The study design has been fully described elsewhere [35]. Briefly, we used a pre-test -post-test design for this interventional study, and participants were randomized in a control group or in an intervention group at inclusion (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Based on the literature, the baseline proportion of low consumers was expected to be at 83.9%, and the target proportion of low consumers was expected equalling those of the French general population, 61.0% [5,44]. This led to an expected number of participants of 92 in each group, leading to a total of 184 participants [35]. The percentage of people lost to follow-up was estimated to be about 40%, and the calculation took into account a type I error of 5% and with an expected power of 90%, leading to an expected number of participants of 300.…”

Section: Statistical Analysesmentioning

confidence: 99%

Impact of fruits and vegetables vouchers on food insecurity in disadvantaged families from a Paris suburb

et al. 2019

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Background: Social inequalities in nutrition lead a high number of families to struggle with food insecurity, even in developed countries. We aimed to assess the impact of fruits and vegetables vouchers on food security among disadvantaged households from a Paris suburb. Methods: We used a pre-post assessment design. Families answered face-to-face questionnaires on food consumption and food security status before and after a randomly assigned intervention. Households in the intervention group received vouchers to buy exclusively fruits and vegetables over one year. Both intervention and control groups benefitted from nutritional education through workshops performed by dieticians during the study period. The Household Food Security Module (HFSM) was used to assess food security status of households at inclusion. Food Insufficiency Indicator (FSI) was used to assess food security at inclusion and follow-up. Evolution of FSI on both groups was evaluated using McNemar test. Results: Among the 91 families included between May 2015 and May 2016, 64 completed the post assessment questionnaire. At inclusion, 68.3% of families were experiencing food insecurity and 78.1% were experiencing food insufficiency. No association was found between food consumptions and food security status. After one-year follow-up, the prevalence of food insufficiency was significantly decreased in the intervention group (61.8%, with p value = 0.03), and unchanged in the control group. Conclusion: In this pilot study, food insufficiency was significantly decreased in families receiving vouchers for fruits and vegetables over a one-year period.

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“…The study design of the whole FLAM study has been fully described elsewhere [ 27 ]. Briefly, FLAM is a randomized controlled trial assessing the effect of FV vouchers in low-income families over a one-year period, through a pre-test post-test design.…”

Section: Methodsmentioning

confidence: 99%

“…The « Fruits and Vegetables at home » study ( Fruits et légumes à la Maison) (FLAM) primarily aimed at assessing the effect of vouchers on the daily consumption of FV in children from low-income families in a suburb area of Paris (France), over a one year period [ 27 ]. This paper focuses on the inclusion process.…”

Section: Introductionmentioning

confidence: 99%

Recruitment of precarious families in an interventional study: Lessons from the French “Fruits and vegetables at home” (FLAM) trial

Buscail

Margat

Miszkowicz

et al. 2018

Contemporary Clinical Trials Communications

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BackgroundThe FLAM study was set up in order to assess the effectiveness of FV vouchers allowed to low-income households, on their FV consumption. The aim of the present study was to investigate issues associated with conducting interventional trials in disadvantaged populations using the FLAM study as an example of reaching target populations and recruitment difficulties.MethodsFamilies were recruited in Saint-Denis city (North Paris suburb), via social and municipal structures. Main interest variables in the study (food consumptions) were collected using face-to-face food interviews, either at home or municipal facilities. A qualitative analysis was performed among people who refused to participate in order to understand the barriers to participation.ResultsA total of 95 parents-child pairs were included from May 2015 to May 2016. The families were mostly in precarious situation (63.3%), and most of parents were unemployed (71.3%). Almost the two third of children and 79.4% of parents were small consumers of FV (less than 3.5 servings per day). Several reasons for non-participation were reported including time constraints, understanding and mistrust issues.ConclusionsThough using facilitating strategies, we recruited fewer participants than expected. The population finally included was mainly made of precarious families with a low consumption of FV. These results highlight the importance of identifying effective facilitating strategies to improve recruitment in disadvantaged populations.Trial registrationClinicalTrial.gov no. NCT02461238, on June 3, 2015, retrospectively registered.

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Fruits and vegetables at home (FLAM): a randomized controlled trial of the impact of fruits and vegetables vouchers in children from low-income families in an urban district of France

Cited by 15 publications

References 59 publications

Influence of pro-obesogenic dietary habits on stress-induced cognitive alterations in healthy adult volunteers

Influence of pro-obesogenic dietary habits on stress-induced cognitive alterations in healthy adult volunteers

Impact of fruits and vegetables vouchers on food insecurity in disadvantaged families from a Paris suburb

Recruitment of precarious families in an interventional study: Lessons from the French “Fruits and vegetables at home” (FLAM) trial

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