Evaluation of the PhunkyFoods intervention on food literacy and cooking skills of children aged 7-9 years: a cluster randomised controlled trial in Yorkshire Primary Schools UK.

BACKGROUND: Childhood obesity rates more than double during primary school in England. Acquiring competent cooking skills is a key part of children's education that can lead to improved knowledge of a healthy lifestyle and dietary behaviours. Evaluation of the impact of 'PhunkyFoods', a school-based food and nutrition education programme, will assess food literacy, cooking skills and dietary behaviour in primary-school children. METHODS: A cluster randomised controlled trial will be undertaken in 28 primary schools in North Yorkshire, UK, including a total population of children aged 7-9 years (n = 420). The trial has two arms: (a) the intervention group receiving PhunkyFoods programme (n = 210) and (b) the wait-list control group receiving the usual school curriculum (n = 210). The intervention 'PhunkyFoods' will be delivered by Purely Nutrition Ltd. The participating school staff are supported with training, policy development and access to resources to improve the delivery of nutrition education. Children participate through whole school assemblies, classroom activities, and after-school clubs about food preparation, cooking healthy meals and healthy living. Schools, parents and children have access to healthy meal recipes through the PhunkyFoods website. The primary outcomes are differences in food literacy and cooking skills scores between control and intervention arms after 12 months of the intervention and adjusted for baseline values. The secondary outcome is differences in fruit and vegetable intake between the arms after 12 months (adjusted for baseline). Treatment effects will be examined using mixed ANOVA and regression analysis. Primary analyses will adjust for baseline food literacy and cooking skills scores and secondary analysis will adjust for pre-specified baseline school and child level covariates. DISCUSSION: The PhunkyFoods programme is a flexible menu of options for schools to choose from, making this a highly complex intervention. Following Medical Research Council guidance, research perspectives will focus on effectiveness and theory-based approaches: to what extent the intervention produces the intended outcomes in real-world settings and what works in which circumstances. TRIAL REGISTRATION: ISRCTN ISRCTN68114155 . Prospectively registered on 22 October 2021.

Taste Exposure Increases Intake and Nutrition Education Increases Willingness to Try an Unfamiliar Vegetable in Preschool Children: A Cluster Randomized Trial.

BACKGROUND: Intake of vegetables in children remains low. OBJECTIVE: To compare taste exposure (TE), nutrition education (NE) and TE+NE together on intake of an unfamiliar vegetable (mooli/daikon radish) in preschool-aged children. DESIGN: Children attending 11 preschools in England were randomly assigned by clusters to four intervention conditions using a 2×2 factorial design: TE, NE, TE+NE, and no intervention (control). PARTICIPANTS: Two hundred nineteen children aged 2 to 5 years participated from September 2016 to June 2017. INTERVENTION: The intervention period was 10 weeks preceded and followed by measurements of raw mooli intake as a snack. Preschools were randomized to receive weekly TE at snack time (n=62 children); NE (n=68) using the PhunkyFoods program; TE+NE (n=55) received both weekly taste exposures at snack and lessons from the PhunkyFoods program; and the control condition (n=34), received NE after the final follow-up measurement. MAIN OUTCOME MEASURES: Individual measured intakes of mooli at Week 1 (baseline), Week 12 (postintervention), and Week 24 and Week 36 (follow-ups). STATISTICAL ANALYSIS: Differences in intakes were analyzed by cluster. Logistic regressions were conducted to examine odds ratios for intake patterns. RESULTS: Data from 140 children with complete mooli intake assessments were analyzed. TE increased intake from 4.7±1.4 g to 17.0±2.0 g and this was maintained at both follow-ups. Children assigned to the NE conditions were more likely to eat some of the mooli than children who were not in the NE conditions (odds ratio 6.43, 95% CI 1.5 to 27.8). Combining TE and NE produced no additional benefit to intake beyond TE alone. CONCLUSIONS: Taste exposures encouraged children to eat more of the unfamiliar vegetable, whereas nutrition education encouraged children who were noneaters to try the vegetable. Both approaches were effective and can be used to produce different outcomes.

Increasing Intake of an Unfamiliar Vegetable in Preschool Children Through Learning Using Storybooks and Sensory Play: A Cluster Randomized Trial.

BACKGROUND: Most children eat fewer vegetables than recommended. Storybooks and sensory play may increase vegetable intake. OBJECTIVE: This study tested the effects on intake of learning about an unfamiliar vegetable (celeriac) through storybooks and sensory play. It was predicted that an illustrated, congruent storybook would increase intake of celeriac compared to an incongruent storybook (carrot); and that adding congruent sensory play with celeriac to the storybook would produce a synergistic effect on intake of celeriac. DESIGN: Children from 12 UK preschools were randomly assigned by clusters to four intervention conditions using a 2×2 factorial design. The factors were vegetable congruency (sensory play and/or storybook were congruent, or incongruent [carrot] with celeriac) and intervention type (storybook only or storybook combined with sensory play). PARTICIPANTS/SETTING: Three hundred and thirty-seven children aged 2 to 5 years were recruited to take part in November 2017. INTERVENTION: Over a 2-week period, children in all four conditions were read a vegetable storybook featuring celeriac or carrot. In addition, two conditions received sensory play with either carrot or celeriac added to the storybook method. MAIN OUTCOME MEASURES: Intake of the unfamiliar vegetable (celeriac) was measured at baseline and after the 2-week intervention. STATISTICAL ANALYSIS PERFORMED: Complex samples logistic regression and general linear modeling were performed to examine group differences at post-intervention. RESULTS: Children receiving the congruent (celeriac) storybook had higher odds of eating celeriac compared to children who received the incongruent (carrot) storybook. Receiving congruent sensory play increased the odds of eating celeriac, whereas receiving incongruent sensory play did not. From the 267 children who completed both baseline and post-intervention assessments, 85 ate no celeriac at baseline and were classed as non-eaters. Sensory play (congruent or incongruent) increased the odds of eating some celeriac in non-eaters compared to storybook only conditions. CONCLUSIONS: Congruency between storybook and vegetable increased intake; sensory play with celeriac increased the likelihood of eating celeriac. Storybooks and sensory play are simple interventions to increase willingness to try an unfamiliar vegetable.

Bitter taste sensitivity, food intake, and risk of malignant cancer in the UK Women's Cohort Study.

PURPOSE: There is variability in sensitivity to bitter tastes. Taste 2 Receptor (TAS2R)38 binds to bitter tastants including phenylthiocarbamide (PTC). Many foods with putative cancer preventive activity have bitter tastes. We examined the relationship between PTC sensitivity or TAS2R38 diplotype, food intake, and cancer risk in the UK Women's Cohort Study. METHODS: PTC taste phenotype (n = 5500) and TAS238 diplotype (n = 750) were determined in a subset of the cohort. Food intake was determined using a 217-item food-frequency questionnaire. Cancer incidence was obtained from the National Health Service Central Register. Hazard ratios (HR) were estimated using multivariable Cox proportional hazard models. RESULTS: PTC tasters [HR 1.30, 95% confidence interval (CI) 1.04, 1.62], but not supertasters (HR 0.98, CI 0.76, 1.44), had increased cancer risk compared to nontasters. An interaction was found between phenotype and age for supertasters (p = 0.019) but not tasters (p = 0.54). Among women > 60 years, tasters (HR 1.40, CI 1.03, 1.90) and supertasters (HR 1.58, CI 1.06, 2.36) had increased cancer risk compared to nontasters, but no such association was observed among women ≤ 60 years (tasters HR 1.16, CI 0.84, 1.62; supertasters HR 0.54, CI 0.31, 0.94). We found no association between TAS2R38 diplotype and cancer risk. We observed no major differences in bitter fruit and vegetable intake. CONCLUSION: These results suggest that the relationship between PTC taster phenotype and cancer risk may be mediated by factors other than fruit and vegetable intake.

Systematic review and meta-analysis of strategies to increase vegetable consumption in preschool children aged 2-5 years.

BACKGROUND: Most children do not meet daily recommendations for fruit and vegetable intake, and consumption of vegetables remains especially low. Eating habits track from childhood to adulthood hence establishing liking and intake of vegetables is important. OBJECTIVE: To identify the most successful strategies to enhance vegetable intake in preschool children aged 2-5 years. DESIGN: The research was a systematic review and a meta-analysis of published studies. A comprehensive search strategy was performed using key databases such as Medline, Embase, PsychINFO, EBSCO and CENTRAL. Articles published between 2005-January 2016, specifically with measured vegetable consumption were included. RESULTS: 30 articles and 44 intervention arms were identified for inclusion (n = 4017). Nine dominant intervention strategies emerged to promote vegetable intake in preschool children. These included; choice, pairing (stealth), education, food service, modelling, reward, taste exposure, variety and visual presentation. The meta-analysis revealed that interventions implementing repeated taste exposure had better pooled effects than those which did not. Intake increased with number of taste exposures and intake was greater when vegetables offered were in their plain form rather than paired with a flavor, dip or added energy (e.g. oil). Moreover, intake of vegetables which were unfamiliar/disliked increased more than those which were familiar/liked. CONCLUSIONS: Repeated taste exposure is a simple technique that could be implemented in childcare settings and at home by parents. Health policy could specifically target the use of novel and disliked vegetables in childcare settings with emphasis on a minimum 8-10 exposures. The systematic review protocol was registered on the PROSPERO (number: CRD42016033984).

The Internet for weight control in an obese sample: results of a randomised controlled trial.

BACKGROUND: Rising levels of obesity coupled with the limited success of currently available weight control methods highlight the need for investigation of novel approaches to obesity treatment. This study aims to determine the effectiveness and cost-effectiveness of an Internet-based resource for obesity management. METHODS: A randomised controlled trial conducted in a community setting, where obese volunteers (n = 221) were randomly assigned to Internet group (n = 111) or usual care group (n = 110). Objective measures of weight and height were obtained. Questionnaires were used to collect dietary, lifestyle, physical activity and quality of life data. Data were collected at baseline, six months and 12 months. RESULTS: Data were collected on 54 (49%) participants in the Internet group and 77 (70%) participants in the usual care group at 12 months. Based on analysis conducted on all available data, the Internet group lost 1.3 kg, compared with 1.9 kg weight loss in the usual care group at 12 months, a non-significant difference (difference = 0.6 kg; 95% CI: -1.4 to 2.5, p = 0.56). No significant differences in change in secondary outcome measures between the two groups at six or 12 months were revealed. Total costs per person per year were higher in the Internet group than the usual care group ( pound992.40 compared to pound276.12), primarily due to the fixed costs associated with setting up the website, and QALYs were similar (0.78 and 0.77) for both groups. CONCLUSION: This trial failed to show any additional benefit of this website in terms of weight loss or secondary outcome measures compared with usual care. High attrition and low compliance limits the results of this research. The results suggest that the Internet-based weight control resource was not a cost-effective tool for weight loss in the obese sample studied. TRIAL REGISTRATION: ISRCTN 58621669.

Genetic sensitivity to 6-n-propylthiouracil has no influence on dietary patterns, body mass indexes, or plasma lipid profiles of women.

BACKGROUND: Genetic sensitivity to the bitter taste of 6-n-propylthiouracil (PROP) has been reported to determine preferences for bitter, sweet, and fat-containing foods, affect dietary habits, influence body weight, and modify chronic disease risk. OBJECTIVE: To examine associations between PROP responsiveness, food choices, dietary intakes, and plasma chemistries in a clinical sample of adult women. SUBJECTS/DESIGN: This nested case-control study was based on female breast cancer patients (n=179) and cancer-free controls (n=179). MAIN OUTCOME MEASURES: Taste responsiveness measure was based on a 25:50:25 split of summed bitterness ratings of five PROP solutions. Food preferences were based on a 171-item checklist. Food and nutrient intakes were assessed using a food frequency questionnaire. Heights and weights were measured and plasma cholesterol and triglyceride levels were obtained. RESULTS: High PROP response was unrelated to reported preferences for sweet or high-fat foods. PROP responsiveness was unrelated to the reported frequency of food use, or to macronutrient composition of the diet. In regression models, PROP responsiveness had no influence on percent of dietary fat, body mass index, or plasma cholesterol, after adjusting for covariates. CONCLUSIONS: In this study PROP responsiveness was not associated with diets lower in sugar and fat, more favorable plasma lipid profiles, or with lower body mass indexes. The study provided no evidence to suggest that genetic PROP taster status had a measurable influence on health outcomes. The clinical utility of PROP taster screening is not supported by these study results.