Genetic and environmental influences on children's food neophobia

ARFID InitiativE Sweden (ARIES): study protocol for a large-scale genetic and registry-linked cohort study on avoidant/restrictive food intake disorder

INTRODUCTION

The ARFID InitiativE Sweden (ARIES) investigates the genetic and environmental factors contributing to avoidant/restrictive food intake disorder (ARFID) in children and adolescents aged 6-14 years. ARIES will establish a national biobank and research registry. It aims to provide data for immediate research and track ARFID outcomes and clarify genetic links between ARFID and other conditions and analyse the gut microbiome to guide nutrition interventions.

METHODS AND ANALYSIS

The study will involve 1500 Swedish children and adolescents with ARFID and a control group of 500 Swedish children and adolescents without ARFID. Parents/guardians and their children will complete online questionnaires assessing ARFID and other eating disorder (ED) pathology, co-occurring conditions, quality of life and parental stress and ED pathology. All participants will provide a saliva sample for comprehensive genetic analyses. Additionally, a subset of participants will provide a stool sample to investigate the gut microbiome in ARFID.

ETHICS AND DISSEMINATION

ARIES was approved by the Swedish Ethical Review Authority (Dnr 2023-04638). All participants will give assent and their parents will complete informed consent. Data will be made available by the authors on reasonable request. Findings will be published in scientific journals and shared with the public and stakeholders in accessible ways, for example, via social media.

Risk Factors and Consequences of Food Neophobia and Pickiness in Children and Adolescents: A Systematic Review

Food neophobia and pickiness are the resistance or refusal to eat and/or avoid trying new foods due to a strong reaction of fear towards the food or an entire group of foods. This systematic review aims to assess evidence on the risk factors and effects of food neophobia and picky eating in children and adolescents, giving elements to avoid the lack of some foods that can cause nutritional deficiencies, leading to future pathologies when they are adults. A systematic literature search was performed in Medlars Online International Literature (MEDLINE) via Pubmed and EBSCOhost, LILACS and IBECS via Virtual Health Library (VHL), Scopus, and Google Scholar. MeSH terms used were: ((food neophobia [Title/Abstract]) OR (picky eating [Title/Abstract]) OR (food selectivity [Title/Abstract])) NOT ((anorexia nervosa [MeSH Terms]) OR (bariatric surgery [MeSH Terms]) OR (avoidant restrictive food intake disorder [MeSH Terms]) OR (autism spectrum disorder [MeSH Terms])). One hundred and forty-two (n = 142) articles were selected for children and adolescents (0-18 years old). They were structured according to contents: prevalence, risk factors, consequences, strategies and treatment. The studies showed a prevalence of the need for intervention on modifiable risk factors. Food neophobia and pickiness developed in childhood are conditioned by risk factors related to biological, social, and environmental characteristics, as well as family education and skills. Strategies to minimize or avoid these disorders should be aimed at implementing healthy habits at these levels.

Food Neophobia in Children: A Case Study in Federal District/Brazil

A reluctance to eat and/or avoidance of novel foods is characterized as food neophobia (FN). FN restricts the diet to familiar foods when, in fact, it should be much more varied. FN can be a barrier to healthy foods, affecting the quality of diet, and impairing children's growth and development. Therefore, according to their caregivers' perceptions, this study aimed to evaluate FN in children from Federal District/Brazil. The Brazilian Children's Food Neophobia Questionnaire (BCFNeo), a specific instrument developed and validated in Brazil, was answered by caregivers of children aged 4 to 11 y/o. Sampling occurred through snowball recruitment, being convenient and non-probabilistic. The Health Sciences Ethics Committee approved the study. The analysis evaluated FN in total (BCFNeoTot) and in the following domains: general (FNgen), for fruits (FNfru), and for vegetables (FNveg). FN scores were compared between sex and child's age and categorized according to three ordinal levels. FN levels were compared using the Mann-Whitney U test. The Friedman test, followed by the Wilcoxon test with Bonferroni correction, was performed to analyze differences in FN according to the environment. Of the caregivers' answers for their children, 595 answers were included, because 19 were out of age. The prevalence of high FN was 42.9%. The domain with the highest prevalence of high FN was vegetables (48.6%). Children aged 8 to 11 y/o had a higher mean FN in two domains (FNgen p = 0.047 and FNveg p = 0.038) when compared to children aged 4 to 7 y/o. Boys were more neophobic in all domains (FNgen p = 0.017; FNfru p = 0.010; FNveg p = 0.013; BCFNeoTot p = 0.008), and FN tends not to decrease with age. The results showed that the children of the FD are more neophobic than Brazilian children in general, highlighting the importance of additional studies in FN determinants in this population and nutritional education interventions to reduce FN among FD children.

Food Neophobia and Avoidant/Restrictive Food Intake among Adults and Related Factors

Avoidant/restrictive food intake disorder (ARFID) includes age-inappropriate feeding behaviors in eating patterns, including food neophobia, defined as refusal or reluctance to eat new or unknown foods. This study aimed to assess the prevalence of ARFID and food neophobia among adults and determine the related characteristics of these risks. The study used an anonymous survey questionnaire consisting of three parts as the research tool. The first part of the questionnaire was a metric and concerned socio-demographic data. The Food Neophobia Scale (FNS) and the Nine-Item Avoidance/Restrictive Food Disorder Screen Questionnaire (NIAS) were used to evaluate the eating disorders. The survey included 309 people (60.2% women, 39.8% men) aged 18-77 years. NIAS results indicated that 15.2% of the subjects showed food selectivity, and 11.0% had food anxiety. In the FNS assessment, 42.4% had a low risk of food neophobia, 38.2% a medium risk, and 19.4% a high risk. A higher risk of food neophobia correlated with higher NIAS scores, indicating a higher risk of ARFID (p = 0.00231). The NIAS score increased with the risk of food neophobia (p = 0.000). Respondents at low risk of neophobia were most likely to avoid several products (83.97%), while in the high-risk group, 56.67% did not want to eat a favorite food enriched with a new ingredient. A higher risk of neophobia was correlated with more food avoidance and adverse reactions to new foods (p = 0.000). A higher risk of food neophobia is strongly correlated with a higher risk of ARFID. Although demographics did not significantly impact NIAS results, some trends were noted, such as higher scores among older and underweight people. Those with a higher risk of food neophobia show more food avoidance and a greater reluctance to experiment with new ingredients. Public education should emphasize that eating disorders affect both sexes equally, with tailored interventions for high-risk groups such as the elderly, rural populations, and those with lower education. Health policies should promote access to nutrition education, psychological support, and diverse food options, while further research is needed to improve targeted interventions.

Analysis of feeding and eating disorders in 191 children according to psychiatric or gastroenterological recruitment: The PEDIAFED cohort study

OBJECTIVE

The DSM-5 classification introduced new Feeding and Eating Disorders (FED) diagnostic categories, notably Avoidant and Restrictive Food Intake Disorder (ARFID), which, like other FED, can present psychiatric and gastrointestinal symptoms. However, paediatric clinical research that focuses on children below the age of 12 years remains scarce. The aim of this study was first to investigate the clinical features of FED in a cohort of children, second to compare them according to their recruitment (gastroenterology or psychiatry unit).

METHOD

This non-interventional retrospective cohort study analysed 191 patients in a French paediatric tertiary care centre (gastroenterology n = 100, psychiatry n = 91). The main outcome variables were clinical data (type of FED, BMI, nutritional support, chronic diseases, psychiatric comorbidities, sensory, sleep, language disorders, gastrointestinal complaints, adverse life events, family history). The outcome was defined by a Clinical Global Impression of Change-score.

RESULTS

FED diagnoses were ARFID (n = 100), Unspecified FED (UFED, n = 57), anorexia nervosa (AN, n = 33) and one pica/rumination. Mean follow-up was 3.28 years (SD 1.91). ARFID was associated with selective and sensory disorders (p < 0.001); they had more anxiety disorders than patients with UFED (p < 0.001). Patients with UFED had more chewing difficulties, language disorder (p < 0.001), and more FED related to chronic disease (p < 0.05) than patients with ARFID and AN. Patients with AN were female, underweight, referred exclusively to the psychiatrist, and had more depression than patients with ARFID and UFED (p < 0.001). The gastroenterology cohort included more UFED, while the psychiatry cohort included more psychiatric comorbidities (p < 0.001). A worse clinical outcome was associated with ARFID, a younger age at onset (p < 0.001), selective/sensory disorders and nutritional support (p < 0.05).

CONCLUSION

ARFID and UFED children were diagnosed either by gastroenterologists or psychiatrists. Due to frequently associated somatic and psychiatric comorbidities, children with FED should benefit from a multidisciplinary assessment and care.

Neophobia, sensory experience and child's schemata contribute to food choices

PURPOSE

The aim of the present review is to analyze dynamic interactions between nutrigenomics, environmental cues, and parental influence, which can all lead to children's neophobic reactions and its persistence in time.

METHODS

We reviewed studies available on electronic databases, conducted on children aged from birth to 18 years. We also considered official websites of Italian Institutions, providing advice on healthy eating during infancy.

RESULTS

Modern day societies are faced with an eating paradox, which has severe and ever-growing implications for health. In face of a wider availability of healthy foods, individuals instead often choose processed foods high in fat, salt and sugar content. Economic reasons surely influence consumers' access to foods. However, there is mounting evidence that food choices depend on the interplay between social learning and genetic predispositions (e.g., individual eating traits and food schemata). Neophobia, the behavioral avoidance of new foods, represents an interesting trait, which can significantly influence children's food refusal. Early sensory experiences and negative cognitive schemata, in the context of primary caregiver-child interactions, importantly contribute to the priming of children's food rejection.

CONCLUSIONS

As neophobia strongly affects consumption of healthy foods, it will be relevant to rule definitively out its role in the genesis of maladaptive food choices and weight status in longitudinal studies tracking to adulthood and, in meanwhile, implement early in life effective social learning strategies, to reduce long-term effects of neophobia on dietary patterns and weight status.

LEVEL OF EVIDENCE

Level II, controlled trials without randomization.

Adherence to Mediterranean Diet and Food Neophobia Occurrence in Children: A Study Carried out in Italy

Food Neophobia (FN), defined as the reluctance to eat new or unfamiliar foods, mainly concerns fruit, vegetables, and legumes, typical of the Mediterranean Diet (MD). Considering these premises, this study aimed to clarify the relationship between FN and AMD in a sample of Italian children and their association with some socio-demographic factors and children's nutritional status. A sample of 288 children aged 3-11 years participated in an assessment carried out with a questionnaire evaluating FN and AMD, respectively, with the Child Food Neophobia Scale (CFNS) and the KIDMED test. Most of the sample showed an intermediate (67.3%) or high level of FN (18.1%), with high rates among 6-11-year-old children (63.9%) and especially in those who were the only child (50%). The AMD was mostly low (29.5%) or medium (54.8%) and reached lower levels among higher neophobic children (51.9%; p value < 0.05). The present results confirm the study hypothesis that FN is a driver of MD abandonment and shows the positive effects on children's eating habits and siblings. Finally, this study proves the relevance of adopting effective feeding strategies against FN to avoid its maintenance in adulthood and the detrimental effects on future overall health and well-being.

[Sensory food aversion in the context of a modern approach to eating disorders in early childhood]

Sensory food aversion, an early childhood eating disorder, is a serious, permanent form of picky eating, in which the infant or the child consistently and persistently refuses certain foods based on specific characteristics, following one or more previous aversive experiences. Biological (sensory processing disorder, taste sensitivity) and environmental factors contribute to its development. Due to limited diet, specific dietary deficiencies may occur but weight gain is usually normal. Behavioral problems, anxiety disorder, autism spectrum disorder are often associated. Diagnosis can usually be made based on a detailed history, but further assessment may include pediatric examination, nutritionist consultation, and psychologic and occupational therapy assessment. Treatment is based on parent education and support in order to minimize mealtime battles and anxiety and to think together about strategies for expanding the child's diet and to help them to accept new foods. As part of the interdisciplinary team, the pediatrician's role is to monitor appropriate growth and development, exclude dietary deficiencies or prescribe supplementation if necessary. In our article, the screening and treatment of sensory processing disorder as part of the assessment of eating problems are introduced as an example of good clinical practice at the Early Childhood Eating and Sleep Disorder Outpatient Clinic at the Heim Pál National Institute of Pediatrics. Orv Hetil. 2023; 164(45): 1767-1777.

Child characteristic correlates of food rejection in preschool children: A narrative review

Dietary habits formed in early childhood are key for establishing a healthy diet later in life. Picky eating and food neophobia - the two main forms of food rejection in young children - form an important barricade to establishing such healthy habits. Understanding these types of food rejection is thus essential for promoting healthy eating behaviour in both children and adults. To this end, the present narrative review aims to provide an overview of food rejection research in preschool-aged children, focusing on recent advances in the cognitive literature. Specifically, we evaluate the link between children's cognitive development, chemosensory perception and affective evaluation of food, food knowledge, decision-making strategies, anxiety and disgust sensitivity, and food rejection behaviour. Longitudinal and experimental studies are necessary to establish how the relationships between food rejection and cognitive processes develop over time and to determine their causal directions.

Pediatric feeding disorders among children with parental history of feeding disorders: a distinct group of patients with unique characteristics

To investigate factors associated with pediatric feeding disorders (PFD) among children of parents that reported to have had feeding disorders during their own childhood compared to children with PFD with no history of parental PFD. We retrospectively reviewed the medical records of children diagnosed with PFD according to the recent WHO-based definition. The demographic and clinical characteristics of children with PFD with a parental history of PFD were compared to those of children with a PFD with no history of parental PFD. Included were 231 children with PFD (median [interquartile range] age 10 months [5.5-29] at diagnosis, 58% boys) of whom 133 children had parents without PFD and 98 children had parents with PFD. Unexpectedly, children of parents without PFD had a higher rate of low birth weight (28% vs. 19%, respectively, p = 0.007), more delivery complications (10% vs. 2%, p = 0.006), more hospitalizations (33% vs. 17%, p = 0.004), more prescription medications (27% vs. 18%, p = 0.05), and a higher percent of gastrostomy tube use (6% vs. 0, p = 0.02). Moreover, more parents with PFD had academic background compared with parents without PFD (72% vs. 59%, p = 0.05). There were no significant group differences in sex, history of breastfeeding, parental marital status, or type of the child's feeding disorder.  Conclusion: PFD among children with a parental history of PFD comprise a distinct group of patients with unique characteristics and outcomes. Since parental feeding history may explain their child's PFD in highly differing ways, such information may help in devising a specific family-based and multidisciplinary treatment plan for those children. What is Known: • Pediatric feeding disorder (PFD) is relatively common and its prevalence is increasing. • Information on an association between parental PFD and their child's feeding disorder is limited. What is New: • PFD among children with a parental history of PFD comprise a distinct group of patients with various characteristics and outcomes. • The parents' feeding history during childhood may provide important clues to their child's PFD.

Fussy Eating Rescue, a mobile-web app for responsive feeding practises among parents of toddlers: protocol for a pilot randomised controlled feasibility trial

BACKGROUND

Fussy eating is most often a developmentally typical behaviour, generally presenting during toddlerhood. However, up to half of parents of young children are concerned about fussy eating, and this concern may mediate the use of nonresponsive feeding practises, such as coercive or unstructured feeding and using food to reward eating. Despite the high prevalence of parental concern for fussy eating and the negative impacts nonresponsive feeding practises have on children's health and diets, no previous digital intervention to improve the feeding practises of parents of toddlers concerned about fussy eating has been evaluated.

AIM

This article describes the protocol of a randomised controlled feasibility pilot aiming to evaluate Fussy Eating Rescue, a purely web app based intervention for parents of toddlers. The primary aim is to investigate feasibility and acceptability; secondary aims are to explore indications of intervention effect on parents' feeding practises or children's eating behaviours.

METHODS

Fussy Eating Rescue features include: (1) a Tracker, that allows parents to track repeated offers of food, (2) Topics, providing information on fussy eating, effective feeding strategies, and general nutrition, (3) Rescues, containing quick references to material supporting Topics contents, (4) Recipes, and (5) SMS notifications. Parents of toddlers (12-36 months old, n = 50) who have concerns about fussy eating will be recruited via Facebook. Parents will be randomised to an intervention group, which receives access to the app for 6 weeks, or to wait-listed control. Outcomes will be assessed at baseline and 6 weeks after app use, using online questionnaires and app usage statistics. Primary outcomes include participant retention rate, intervention engagement, app usability, perceived ease in using the app, perceived usefulness of the app, and user satisfaction. Secondary outcome measures include parents' feeding practises and children's eating behaviours.

DISCUSSION

Results will inform whether Fussy Eating Rescue is a feasible way to engage parents concerned for their toddler's fussy eating behaviours. If feasible and acceptable to users, a larger trial will further examine the efficacy of the Fussy Eating app in improving parents' feeding practises and children's eating behaviours.

TRIAL REGISTRATION

Prospectively registered with the Australian New Zealand Clinical Trials Registry on 15 July, 2021 (ACTRN12621000925842).

Impact of diet on sensory processing in early childhood: summary of an interactive webconference / expert roundtable discussion

Pediatric feeding disorders can be seen in up to 45% of normally developing children aged under 5 years old, mainly during the first three years of life when the child has inadequate food intake and/or difficulty maintaining adequate growth, and/or lack of age-appropriate eating habit. This article describes the opinion of a group of experts on children eating patterns and how to manage pediatric feeding disorders, with the aim to improve the quality of life of children and their caregivers.

Etiology of the Broad Avoidant Restrictive Food Intake Disorder Phenotype in Swedish Twins Aged 6 to 12 Years

Importance

Avoidant restrictive food intake disorder (ARFID) is characterized by an extremely limited range and/or amount of food eaten, resulting in the persistent failure to meet nutritional and/or energy needs. Its etiology is poorly understood, and knowledge of genetic and environmental contributions to ARFID is needed to guide future research.

Objective

To estimate the extent to which genetic and environmental factors contribute to the liability to the broad ARFID phenotype.

Design, Setting, and Participants

This nationwide Swedish twin study includes 16 951 twin pairs born between 1992 and 2010 whose parents participated in the Child and Adolescent Twin Study in Sweden (CATSS) at twin age 9 or 12 years. CATSS was linked to the National Patient Register (NPR) and the Prescribed Drug Register (PDR). Data were collected from July 2004 to April 2020, and data were analyzed from October 2021 to October 2022.

Main Outcomes and Measures

From CATSS, NPR, and PDR, all parent reports, diagnoses, procedures, and prescribed drugs that were relevant to the DSM-5 ARFID criteria were extracted when twin pairs were aged 6 to 12 years and integrated into a composite measure for the ARFID phenotype (ie, avoidant/restrictive eating with clinically significant impact, such as low weight or nutritional deficiency, and with fear of weight gain as an exclusion). In sensitivity analyses, autism and medical conditions that could account for the eating disturbance were controlled for. Univariate liability threshold models were fitted to estimate the relative contribution of genetic and environmental variation to the liability to the ARFID phenotype.

Results

Of 33 902 included children, 17 151 (50.6%) were male. A total of 682 children (2.0%) with the ARFID phenotype were identified. The heritability of ARFID was 0.79 (95% CI, 0.70-0.85), with significant contributions from nonshared environmental factors (0.21; 95% CI, 0.15-0.30). Heritability was very similar when excluding children with autism (0.77; 95% CI, 0.67-0.84) or medical illnesses that could account for the eating disturbance (0.79; 95% CI, 0.70-0.86).

Conclusions and Relevance

Prevalence and sex distribution of the broad ARFID phenotype were similar to previous studies, supporting the use of existing epidemiological data to identify children with ARFID. This study of the estimated genetic and environmental etiology of ARFID suggests that ARFID is highly heritable, encouraging future twin and molecular genetic studies.

Attitudes of Young Tri-City Residents toward Game Meat. Development and Validation of a Scale for Identifying Attitudes toward Wild Meat

Attitudes toward food are one of the most critical factors related to consumer behavior in the food market. Therefore, identifying attitudes toward a specific food product may be essential for identifying factors influencing certain behaviors regarding game. In addition, game meat is a valuable food that can increase the variety of meat and reduce the intensive breeding of slaughter animals. Therefore, a research gap was found regarding the lack of a tool for identifying attitudes toward game that would allow for the acquisition of data valid for studying conditions related to game consumption. The study aims to validate a developed scale for identifying the attitudes of young Tri-City residents toward game. To collect the database, two groups of respondents are involved in the validation procedure. This procedure includes validation of content, response process, and statistical validation. The scale is validated, and four domains are distinguished based on the PCA test. The validated scale consists of 10 statements (initially 11). The estimated Cronbach's alpha (0.6944) indicates good scale internal consistency. The developed scale can be used to identify attitudes of young Tri-City residents toward game and search for links between these attitudes and behaviors related to game consumption.

The Chinese version of the child food neophobia scale and its reliability and validity in preschool children

OBJECTIVE

To translate the English version Child Food Neophobia Scale (CFNS) into the Chinese version and test its reliability and validity in preschool children.

METHODS

To create the Chinese version of the CFNS, it was translated, back-translated, and cross-culturally adapted. The use of the Chinese version of CFNS by 575 parents of preschool children in two kindergartens in Yangzhou City was investigated using cluster sampling to assess the reliability and validity of the scale.

RESULTS

The Chinese version of CFNS has nine items in total. The scale-level average content validity index (S-CVI/Ave) is 0.983. Exploratory factor analysis (EFA) extracted 2 common factors, and the cumulative variance contribution rate was 49.437%. Confirmatory factor analysis (CFA) showed that the 2-factor model was well fitted. The Cronbach'α coefficient of the scale was 0.759, the Cronbach'α coefficients of the two factors were 0.735 and 0.713, the split-half reliability was 0.788, and the test-retest reliability was 0.756.

CONCLUSION

The Chinese version of the Child Food Neophobia Scale has good reliability and validity in preschool children and can be used as an assessment tool for food neophobia in preschool children in China.

PRACTICE IMPLICATIONS

This study has gone through a rigorous translation process, and the CFNS may support future exploration of food neophobia in preschool children. Food allergy factors in the results may be the next step in the research, and several studies are still needed to understand the relationship between food allergy and food neophobia.

The impact of COVID-19 pandemic on food habits and neophobia in children in the framework of the family context and parents' behaviors: A study in an Italian central region

Objective

This paper aims to evaluate whether changes in lifestyle and eating habits resulting from the Covid-19 emergency have influenced the post-pandemic level of food neophobia and in children living in an Italian central region.

Methods

A sample of 99 children took part in a retrospective assessment carried out with a self-administrated questionnaire. Pre and post-pandemic evaluation of eating habits, physical activity, and lifestyle indicators was carried out. Food neophobia was evaluated following the Child Food Neophobia Scale (CFNS). Descriptive statistics were produced. A contingency analysis was performed to check associations between variables.

Results

For a large part of the sample (97%) the selective food refusal did not change during the pandemic period. About 70% of participants did not change their eating habits, with some subgroups reporting an increase in the consumption of fruits (22.2%), vegetables (19.2%), and legumes (21.2%). Relevantly the impact of the pandemic on the sedentary attitude passed from 25.3 to 70.7%. Neophobia was not associated with ponderal status (p-value 0.5). However, in normal-weight children, a high prevalence of intermediate-level neophobia (78.4%) was found. 39.4% of the studied children were involved in meal preparation during social isolation, with an increase in the proportion of children that shared all meals with their family (32.3% vs. 78.8%). Non-coercive parent behaviors in reaction to food refusal were associated with low levels of neophobia (p-value < 0.05).

Discussion

In this sample, for the effect of parents' attitudes, the pandemic positively affected children's food habits and, consequently, the level of neophobia after the social restrictions. The main implication of the study is the importance of capitalizing on the period of restrictions in order to involve children in meal sharing and food preparation.

Food Neophobia in Children with Autistic Spectrum Disorder (ASD): A Nationwide Study in Brazil

Food neophobia (FN) is common among children with autistic spectrum disorder (ASD), potentially impairing their health and diet quality. This study aimed to investigate and classify the prevalence of FN among 4-to-11-year-old Brazilian children with ASD. This descriptive cross-sectional study was performed by applying online a validated instrument to identify FN in Brazilian children with ASD through their caregivers' responses for a national prevalence of FN in this group. The final sample included 593 children with ASD, 80.1% of boys, with a mean age of 6.72 ± 2.31 years, and 83% having only ASD. Almost 75% (n = 436) of the children with ASD had high food neophobia scores. The fruit neophobia domain had the lowest prevalence of high neophobia (63.7%). No significant difference in FN (total, fruit, and vegetable domains) was found, considering gender and age. There was no statistical difference in FN (all domains) by the number of residents in the same household, income, or the caregivers' educational level. FN did not decrease in older children with ASD. FN is a more complex problem, requiring a multidisciplinary trained team to face the problem.

Characteristics of picky eater children in Turkey: a cross-sectional study

Objective

The aim of this study is to investigate the relations of picky eating habit of children with their nutrition, physical activity, screen time and sleep habits in the context of parental picky eating habit.

Methods

In a cross-sectional study a questionnare was applied to the parents of children aged 6–13 years in two provincies. The cases were analyzed as the overall group and the two subgroups in which both parents are not picky eater, and in which at least one parent was picky eater. Child's risk of being picky eater was analyzed by logistic regression.

Results

A total of 913 children and parent pairs were included in the study. The risk of picky eating of the child increases 2.85 (AOR: 1.67–4.88) times when only the mother was picky eater, 5.99 (AOR: 3.32–7.52) times when only the father was picky eater, and 22.79 (AOR: 6.95–74.71) times when both of the parents were picky eaters. In the subgroup in which at least one parent was picky eater, it was determined that children with physical activity duration of ≥ 1 h/day and sleep time of ≥ 9 h /day were less likely to be picky eater and the children with screen time of ≥ 2 h/day were more likely to be picky eaters.

Conclusion

Picky eating habit in childhood is related to the picky eating habit of the parents. In the context of this relationship, the picky eating habit of children is related to sleep, physical activity, screen time and other eating habits.

Eating Problems in Autistic Females and Males: A Co-twin Control Study

This study investigated the association between autism and self-reported eating problems and the influence of gender on the association, in a sample of adolescent and adult twins (N = 192). Autistic traits and autism diagnosis were associated with both total and specific eating problems, including selective eating and sensory sensitivity during mealtimes. Interaction effects indicated a stronger association between autistic traits and total eating problems in females, as well as more difficulties with eating in social contexts among autistic females. In within-pair analyses, where unmeasured confounders including genes and shared environment are implicitly controlled for, the association was lost within monozygotic pairs, which might further indicate a genetic influence on the relationship between autism and eating problems.

Effects of food neophobia and oral health on the nutritional status of community-dwelling older adults

BACKGROUND

Food preferences and oral health of older adults greatly affect their nutritional intake, and old-age-related increase in food neophobia may consequently reduce food intake in older adults. This study aimed to determine the impact of food neophobia and oral health on nutritional risk in community-dwelling older adults.

METHODS

This cross-sectional study included 238 independent adults aged ≥ 65 years (mean, 76.3 ± 7.3 years). The survey items included a Food Neophobia Scale, frequency of protein intake, oral-health-related quality of life (QOL) assessment, and oral diadochokinesis (ODK; /pa/, /ta/, /ka/) as an index of oral function. Nutritional status was assessed using the Mini Nutritional Assessment®, and based on a cutoff value of 24 points, respondents were categorized as well-nourished (≥ 24 points, Group 1) or at risk of malnutrition (< 24 points, Group 2). A logistic regression model was used to calculate the adjusted odds ratio (adj-OR) with 95% confidence interval (CI) to identify risks factors for malnutrition associated with food neophobia and oral health.

RESULTS

Factors associated with the risk of malnutrition in the older population were higher food neophobia (adj-OR = 1.036, 95% CI: 1.007-1.067) and lower oral function (OR = 0.992, 95% CI: 0.985-0.999) and lower oral-health-related QOL (adj-OR = 0.963, 95% CI: 0.929-0.999).

CONCLUSIONS

Older adults at risk of developing malnutrition may have higher food neophobia and lower oral function and oral-health-related QOL. Factors contributing to preventing malnutrition include predicting the risk of malnutrition based on the oral health indicators that older people are aware of, signs appearing in the oral cavity, minor deterioration, and providing dietary guidance about food neophobia. Notably, these approaches represent novel strategies for nutrition support that can be implemented based on a multifaceted understanding of the eating habits of older adults.

How genetic analysis may contribute to the understanding of avoidant/restrictive food intake disorder (ARFID)

Avoidant/restrictive food intake disorder (ARFID) was introduced in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Unlike anorexia nervosa, ARFID is characterised by avoidant or restricted food intake that is not driven by weight or body shape-related concerns. As with other eating disorders, it is expected that ARFID will have a significant genetic risk component; however, sufficiently large-scale genetic investigations are yet to be performed in this group of patients. This narrative review considers the current literature on the diagnosis, presentation, and course of ARFID, including evidence for different presentations, and identifies fundamental questions about how ARFID might fit into the fluid landscape of other eating and mental disorders. In the absence of large ARFID GWAS, we consider genetic research on related conditions to point to possible features or mechanisms relevant to future ARFID investigations, and discuss the theoretical and clinical implications an ARFID GWAS. An argument for a collaborative approach to recruit ARFID participants for genome-wide association study is presented, as understanding the underlying genomic architecture of ARFID will be a key step in clarifying the biological mechanisms involved, and the development of interventions and treatments for this serious, and often debilitating disorder.

Neophobia—A Natural Developmental Stage or Feeding Difficulties for Children?

Food neophobia is the tendency to reject or be reluctant to try new and unfamiliar foods. Due to the period of its occurrence, which falls in the years of early childhood, it can significantly affect the child’s food choices, shape taste preferences, and significantly influence the quality of the child’s diet. The neophobic attitude has an important evolutionary significance because it protects the individual from ingesting potentially dangerous substances. On the other hand, it fosters avoidance behaviors that can also relate to the beneficial aspects of obtaining and consuming food. Currently, the strong emphasis placed on food safety means that neophobia may be less adaptive; nevertheless, a conservative attitude toward new foods still prevails. There is a strong association between food neophobia and the diversity of a person’s diet and previous exposure to different foods. This review describes behaviors associated with food neophobia and analyzes other feeding and eating difficulties in children that should be differentiated from food neophobia. Management approaches affecting the reduction in food neophobia in children through various dietary and psychological interventions are also proposed.

Intergenerational transmission of appetite: Associations between mother-child dyads in a Mexican population

The Child Eating Behaviour Questionnaire (CEBQ) and the Adult Eating Behaviour Questionnaire (AEBQ) measure 'food approach' [Food responsiveness (FR); Emotional overeating (EOE); Enjoyment of food (EF); Desire to Drink] and 'food avoidant' [Satiety responsiveness (SR); Emotional undereating (EUE); Food fussiness (FF); Slowness in eating (SE)] appetitive traits (ATs) in children and adults, respectively. 'Food approach' traits predispose to overweight while 'food avoidance' traits provide protection, but little is known about the relationships between parents' and their offspring's ATs. The aim was to examine the associations between maternal and child appetitive traits, using the AEBQ-Esp and CEBQ-Mex adapted for use in Mexican populations. Sociodemographic data, weights and heights of mothers and their children (aged 3-13 years), who were recruited from a teaching hospital in Guadalajara, Mexico, were measured. Mothers completed both the AEBQ-Esp and the CEBQ-Mex. The CEBQ-Mex was developed, and its reliability was tested using Cronbach's alpha and Omega, and Confirmatory Factor Analysis (CFA) was used to assess its validity. Pearson's correlation coefficients were used to assess associations between mothers' and children's Ats. The sample included 842 mother-child dyads (mother's mean age = 34.8±SD6.9 years, BMI 29.7±6.1 kg/m2; children's mean age = 8.5 ±SD2.5 years, BMIz 1.5±1.6). Internal reliability was moderate to high [Cronbach alpha = .68-.86; Omega = .71-.87] for the CEBQ-Mex and validity was confirmed for an 8-factor model through CFA [RMSEA = 0.065; CFI = 0.840, NFI = 0.805; IFI = 0.842; and χ2(df = 532) = 2939.51, p < 0.001]. All but one of the children's appetitive traits showed small to moderate, significant correlations with their mother's counterpart [FR (r = .22; p<001); EOE (r = .30; p < .001); EF (r = .15; < .001); SR (r = .16; p < .001); EUE (r = .34; p < .001) and FF (r = .14; p < .001). Only SE was not significantly associated with maternal SE (r = .01; p>.05). ATs tend to run in families, signalling the intergenerational transmission of eating behaviours. These may be useful targets for family-wide interventions to support the development and maintenance of healthy eating behaviours in childhood.

Food Neophobia among Brazilian Children: Prevalence and Questionnaire Score Development

This study aims to create and validate a score to classify food neophobia among Brazilian children (from the ages of 4 to 11 years) and investigate the prevalence of food neophobia. This descriptive cross-sectional population-based study is conducted following three steps: (i) the application of an instrument to identify food neophobia in Brazilian children by their caregivers; (ii) the instrument’s score definition; and (iii) the evaluation and characterization of the national prevalence of food neophobia among Brazilian children. The scores were categorized into three levels, based on the tertial approximation: low, moderate, and high. The study had 1112 participants, and the prevalence of high food neophobia was observed in 33.4% of Brazilian children. The prevalence of food neophobia allowed us to identify this behavior in Brazilian children and better understand the population. Boys were significantly more neophobic than girls. The general neophobia score and domains did not significantly differ between Brazilian regions and age groups. It is worrying that food neophobia did not decrease with advancing age. The score for the complete instrument with 25 items, or the 3 domains, makes its use practical. It can be used to assess neophobia with more caution, evaluate the most neophobic children, and enable more targeted professional interventions to promote healthier and sustainable eating habits.

A comparison of food avoidant behaviours and sensory sensitivity in adults with and without Tourette syndrome

Food selectivity has been shown to be more persistent and severe in children with Tourette syndrome (TS) compared to their typically developing peers. The current study aimed to examine differences in food selectivity, food neophobia and Avoidant Restrictive Food Intake Disorder (ARFID)-associated behaviours, between adults with and without TS. Fifty-three adults diagnosed with TS were compared to 53 neurotypical adults and completed the following measures online: Adult Eating Behaviour Questionnaire (AEBQ), Nine-Item Avoidant/Restrictive Food Intake disorder screen (NIAS), Food Neophobia Scale (FNS) and the Sensory Perception Quotient (SPQ). Higher levels of food avoidant behaviours, in terms of food fussiness, food neophobia and ARFID-associated behaviours, were identified in adults with TS compared to adults without TS. While heightened sensory sensitivity failed to predict food fussiness, greater sensitivity to taste was found to be predictive of food neophobia in TS. These are the first findings to suggest that food avoidant behaviours are more prevalent for adults with TS and signal a need to address health implications.

Individual Variation in Dietary Wariness Is Predicted by Head Color in a Specialist Feeder, the Gouldian Finch

Shifts in resource availability due to environmental change are increasingly confronting animals with unfamiliar food types. Species that can rapidly accept new food types may be better adapted to ecological change. Intuitively, dietary generalists are expected to accept new food types when resources change, while dietary specialists would be more averse to adopting novel food. However, most studies investigating changes in dietary breadth focus on generalist species and do not delve into potential individual predictors of dietary wariness and the social factors modulating these responses. We investigated dietary wariness in the Gouldian finch, a dietary specialist, that is expected to avoid novel food. This species occurs in two main head colors (red, black), which signal personality in other contexts. We measured their initial neophobic responses (approach attempts before first feed and latency to first feed) and willingness to incorporate novel food into their diet (frequency of feeding on novel food after first feed). Birds were tested in same-sex pairs in same and different head color pairings balanced across experiments 1 and 2. Familiar and novel food (familiar food dyed) were presented simultaneously across 5 days for 3 h, each. Gouldian finches fed on the familiar food first demonstrating food neophobia, and these latencies were repeatable. Birds made more approach attempts before feeding on novel than familiar food, particularly red-headed birds in experiment 1 and when partnered with a black-headed bird. Individuals consistently differed in their rate of incorporation of novel food, with clear differences between head colors; red-headed birds increased their feeding visits to novel food across experimentation equaling their familiar food intake by day five, while black-headed birds continually favored familiar food. Results suggest consistent among individual differences in response to novel food with red-headed birds being adventurous consumers and black-headed birds dietary conservatives. The differences in food acceptance aligned with responses to novel environments on the individual level (found in an earlier study) providing individuals with an adaptive combination of novelty responses across contexts in line with potential differences in movement patterns. Taken together, these novelty responses could aid in population persistence when faced with environmental changes.

Food Texture Acceptance, Sensory Sensitivity, and Food Neophobia in Children and Their Parents

This study aims to explore whether children's food texture preferences are associated with different levels of sensory sensitivity and food neophobia, as well as with other variables, such as parental texture preferences. An online questionnaire was completed by 70 children aged 6-13 years old, alongside one of their parents. Generic texture preferences of children and parents were investigated with the Child Food Texture Preference Questionnaire (CFTPQ). Parents provided background information about their children by completing the Food Neophobia Scale (FNS), the Short Sensory Profile (SSP) and a Food Frequency Questionnaire (FFQ). The results showed that children who differed in their texture-liker status also differed in their levels of food neophobia and sensory information processing: children who preferred softer and non-particulate versions of foods were found to be more neophobic and sensory sensitive across all sensory domains. No relationship was found between parental and children's texture preferences.

Food Neophobia among Adults: Differences in Dietary Patterns, Food Choice Motives, and Food Labels Reading in Poles

Food neophobia (FN) is associated with reduced quality of diet in adults; thus, the understanding of the relationship between FN and food consumption in more depth appears to be a key issue. The aim of the study was to assess the relationship between food neophobia, dietary patterns, food choice motives, and food label reading in the group of adults. Data were collected using the computer-assisted personal interviewing technique (CAPI). A cross-sectional quantitative survey was carried out in November-December 2017 in a sample of 1017 Polish adults. The questionnaire used in the study included the Food Neophobia Scale (FNS), the Beliefs and Eating Habits Questionnaire (KomPAN), and questions regarding food choice motives, reading food labels, and sociodemographic characteristics. The food neophobics were older, had a lower level of education, and had higher BMI compared to others. Compared to others, among the food neophobics, there were more people who often consumed vegetables, fruit, meat, and meat products and who rarely consumed functional and convenience food, sweets, and sweetened beverages. When choosing food, more food neophobics chose healthy and tasteless food products, while more food neophilics chose unhealthy and tasty products. More food neophobics declared not reading price and shelf-life information on food labels compared to the other two groups. Although food neophobia may make adaptation to dietary recommendations difficult, health-promoting features of the diet were observed within the food neophobics. Actions focusing on food choice motives may help even more to limit the effects of food neophobia in adults. Further research is recommended to confirm the observed relationships under different sociocultural conditions.

Are Maternal Feeding Practices and Mealtime Emotions Associated with Toddlers' Food Neophobia? A Follow-Up to the DIT-Coombe Hospital Birth Cohort in Ireland

This study was conducted to explore the associations between maternal feeding practices, mealtime emotions, as well as maternal food neophobia and toddlers’ food neophobia in Ireland. A follow-up to the Technological University Dublin (DIT)-Coombe Hospital birth cohort was conducted. Mothers in the original cohort were invited to the present study by telephone calls. Postal questionnaires with stamped addressed envelopes were distributed to those who agreed to participate in the study. Toddler food neophobia was assessed by the modified version of the Child Food Neophobia Scale (CFNS). There were 205 participants included in this study, with a median score of child food neophobia of 12. A higher degree of child food neophobia (score > 12) was positively associated with the maternal practice of coaxing the children to eat at refusal (OR (Odds Ratio) = 2.279, 95% CI: 1.048–4.955), unpleasant emotions at mealtime (e.g., stressful or hectic for mothers, or tearful for children) (OR ranged between 1.618 and 1.952), and mothers’ own degree of food neophobia (OR = 1.036, 95% CI: 1.001–1.072). Mothers who were not worried when confronted with child’s food refusal was negatively associated with toddlers’ food neophobia (OR = 0.251, 95% CI: 0.114–0.556). This study suggests the maternal practices of responsive feeding, being calm and patient with the toddlers, and creating a positive atmosphere at mealtime.

Considering Nature and Nurture in the Etiology and Prevention of Picky Eating: A Narrative Review

Children are often categorized as picky eaters by parents and caregivers for their rejection of foods, such as vegetables, and for exhibiting other difficult mealtime behaviors. However, there are several factors that contribute to these mealtime behaviors, including early feeding practices (i.e., breastfeeding, introduction to solid food), repeated exposure to novel foods, and genetic taste sensitivity to certain compounds. Using the online database of PubMed, a review of the literature on the development of picky eating in children, its outcomes, and intervention strategies was conducted. This review groups the developmental contributors to picky eating into the categories of nature and nurture and explores the interaction between the two. This paper will also summarize the potential outcomes of picky eating and the various strategies that are currently recommended to mitigate picky eating in young children. However, there is a lack of longitudinal work targeting consistent picky eating behaviors that have the potential to impact long-term food preferences and dietary variety. Future intervention strategies should address the factors that influence the development of picky eating on an individual level.

Consumers' Attitudes Facing Entomophagy: Polish Case Perspectives

Based on high nutritional value and low production costs, edible insects are an excellent and sustainable source of animal proteins. However, completely replacing meat with edible insects requires a change in consumer mentality not only in Poland, but also in other European countries. In western countries, most people reject eating insects, mainly for cultural reasons. Concerning this, the objective of the study was to examine the knowledge, behavior, and attitudes of the Polish community about edible insects and to understand the main factors driving edible insect consumption. The study was held at the Wroclaw University of Economics and Business, Poland and consisted of two parts: The survey (among 464 students) and the tasting session (among 402 participants). The main findings suggest that there is low willingness to adopt edible insects as a meat substitute among Polish students due to the psychological barriers, such as neophobia and disgust. However, the willingness to eat processed insect food (bread, biscuit) is far higher than for unprocessed whole insects. Environmental benefits are the factors that least affected students’ willingness to try edible insects. Additionally, the tasting session of the bread with powdered insects was attended by the vast majority of participants, which indicates that a positive sensory experience can improve the acceptability of insects as food.

Feeding Practices and Parenting: A Pathway to Child Health and Family Happiness

Feeding and parenting are inextricably linked. The complex bidirectional interactions between parent feeding practices and child eating behaviour shape the early feeding environment which in turn interacts with genetic predispositions to lay the foundation for life-long eating habits and health outcomes. Parent feeding and child (and parent) eating are central to the fabric of family life and are strongly rooted in culture and tradition. Yet, many parents experience stress and anxiety related to this ubiquitous parenting task and perceive their child as a “fussy eater” or a “difficult feeder.” Parents commonly misinterpret heritable and developmentally “normal” child eating behaviour, such as food refusal, as cause for concern. In an effort to get their child to “eat well” they respond with coercive feeding practices, such as pressure, reward and restriction. Emotional feeding that uses food to comfort, distract, calm or shape behaviour is also common. Although well intentioned, these non-responsive, parent- rather than child-centred feeding practices are ineffective, even counterproductive. They teach children to eat for reasons unrelated to appetite and, hence, more than they need and fail to support development of healthy food preferences and appetite regulation. Early feeding interventions are needed that assist parents to understand normal child eating behaviour and promote responsive feeding practices and effective food parenting. The aim of this chapter is to review (1) “normal” eating behaviour of young children, (2) the range of feeding practices and strategies that parents use to respond to and try to shape these behaviours, (3) evidence for approaches to feeding young children that have potential to reduce conflict related to child feeding and promote life-long healthy eating patterns that are a key determinant of long-term health and well-being and (4) to provide an overview of an early feeding intervention, NOURISH, which demonstrated a positive impact on maternal feeding practices and potentially reduced parent anxiety and stress related to feeding.

A comparison of maternal feeding responses to child fussy eating in low-income food secure and food insecure households

Children learn to like a wide variety of healthy foods through exposure in their early feeding environment. While some children may reject foods during this learning process, parents may perceive persistent refusal as 'fussy' or 'picky' eating. Low-income parents may provide fussy children with a narrow range of foods that they will like and accept to avoid food and economic waste; inadvertently limiting children's exposure to a variety of healthy foods. This 'risk aversion' to food rejection may be particularly salient in food insecure households where resources are further constrained. We aimed to examine if food insecurity modifies the relationship between child fussy eating and parents' food provision and feeding with respect to exposure to a variety of healthy foods. Australian mothers residing in a low-income community (N = 260) completed a cross-sectional survey on their preschool-aged child's 'food fussiness', household food insecurity and food exposure practices. Food exposure practices included the home availability of fruit and vegetables, and children's tasting of a variety of fruit and vegetables (food provision); and whether parents prepared alternative meals for their child (feeding). Mothers reporting food insecurity (11%) were less likely to have fruit frequently available in the home compared to mothers reporting food security. Food insecurity moderated the relationship between fussy eating and food exposure practices insofar that food secure mothers were more likely to prepare alternative meals for fussier children. Family resources and child fussy eating behaviours are identified as important contextual factors in food provision and feeding. Findings from the current study suggest that health professionals, researchers and policymakers tailor interventions to consider both the needs of families and child eating characteristics.

Baby food and bedtime: Evidence for opposite phenotypes from different genetic and epigenetic alterations in Prader-Willi and Angelman syndromes

Prader–Willi and Angelman syndromes are often referred to as a sister pair of neurodevelopmental disorders, resulting from different genetic and epigenetic alterations to the same chromosomal region, 15q11-q13. Some of the primary phenotypes of the two syndromes have been suggested to be opposite to one another, but this hypothesis has yet to be tested comprehensively, and it remains unclear how opposite effects could be produced by changes to different genes in one syndrome compared to the other. We evaluated the evidence for opposite effects on sleep and eating phenotypes in Prader–Willi syndrome and Angelman syndrome, and developed physiological–genetic models that represent hypothesized causes of these differences. Sleep latency shows opposite deviations from controls in Prader–Willi and Angelman syndromes, with shorter latency in Prader–Willi syndrome by meta-analysis and longer latency in Angelman syndrome from previous studies. These differences can be accounted for by the effects of variable gene dosages of UBE3A and MAGEL2, interacting with clock genes, and leading to acceleration (in Prader–Willi syndrome) or deceleration (in Angelman syndrome) of circadian rhythms. Prader–Willi and Angelman syndromes also show evidence of opposite alterations in hyperphagic food selectivity, with more paternally biased subtypes of Angelman syndrome apparently involving increased preference for complementary foods (“baby foods”); hedonic reward from eating may also be increased in Angelman syndrome and decreased in Prader–Willi syndrome. These differences can be explained in part under a model whereby hyperphagia and food selectivity are mediated by the effects of the genes SNORD-116, UBE3A and MAGEL2, with outcomes depending upon the genotypic cause of Angelman syndrome. The diametric variation observed in sleep and eating phenotypes in Prader–Willi and Angelman syndromes is consistent with predictions from the kinship theory of imprinting, reflecting extremes of higher resource demand in Angelman syndrome and lower demand in Prader–Willi syndrome, with a special emphasis on social–attentional demands and attachment associated with bedtime, and feeding demands associated with mother-provided complementary foods compared to offspring-foraged family-type foods.

Poor dietary patterns at 1-5 years of age are related to food neophobia and breastfeeding duration but not age of introduction to solids in a relatively advantaged sample

Previous studies have investigated associations between individual foods or food group intake, and breastfeeding duration, age of solid introduction and food neophobia. This study aimed to investigate associations between whole dietary patterns in young children, and breastfeeding duration, age of solid introduction and food neophobia. Parents of children (N = 234) aged 1-5 years completed an online questionnaire. Dietary risk scores were calculated using the Toddler (1-3 years) or Preschool (>3-<5 years) Dietary Questionnaires which evaluates the previous week's food-group intake (scored 0-100; higher score = higher risk of poor dietary quality). Neophobia was measured using the Child Food Neophobia scale (1.0-4.0; higher score = more neophobic). Associations were investigated using multivariable linear regression, adjusting for covariates. Children (54% female, 3.0 ± 1.4 years) were from advantaged families and were breastfed until 11.8 (5.0-16.0) months, started solids at 5.6 ± 1.4 months of age, moderately neophobic (2.1 ± 0.7) and at moderate dietary risk (29.2 ± 9.2). Shorter breastfeeding duration (β = -0.21; p = 0.001) and poorer child food neophobia scores (β = 0.36; p < 0.001) were associated with higher dietary risk scores. Age of introduction to solids showed no association with dietary risk (p = 0.744). These findings suggest that in addition to breastfeeding promotion, supporting parents to manage neophobic behaviour may be important in promoting healthy eating patterns in early childhood.

Picky eating in children: causes and consequences

Picky eating is a common behaviour in early childhood. There is neither a universally accepted definition of picky eating, nor is there agreement on the best tool to identify it. Causes of picky eating include early feeding difficulties, late introduction of lumpy foods at weaning, pressure to eat and early choosiness, especially if the mother is worried by this; protective factors include the provision of fresh foods and eating the same meal as the child. The consequences for the child's diet include poor dietary variety and a possible distortion of nutrient intakes, with low intakes of iron and zinc (associated with low intakes of meat, and fruit and vegetables) being of particular concern. Low intakes of dietary fibre, as a result of low intakes of fruit and vegetables, are associated with constipation in picky eaters. There may be developmental difficulties in some children with persistent picky eating. There is little evidence, however, for a consistent effect of being a picky eater on growth trajectories. There may be a small subgroup of children in whom picky eating does not resolve who might be at risk of thinness during adolescence, or of developing an eating disorder or adult picky eating: these children need to be identified at an early age to enable support, monitoring and advice to be offered to parents. Strategies for avoiding or ameliorating picky eating include repeated exposures to unfamiliar foods, parental modelling of eating fruit and vegetables and unfamiliar foods, and the creation of positive social experiences around mealtimes.

Autism spectrum disorder and food neophobia: clinical and subclinical links

Background

Autism spectrum disorder (ASD) has been linked with eating- and feeding-related atypicalities, including food neophobia (FN) (refusal to try unfamiliar foods), since its earliest description. Nevertheless, whether associations between ASD traits and FN extend subclinically into the broader population of children and their potential additive health impacts remains unexplored.

Objective

We examined ASD-control group differences in FN and ASD trait-FN trait associations, as well as the ability of FN and autistic traits to predict one index of later health-related outcomes [body mass index (BMI)].

Design

Participants in the present study were a large community-based sample of 8- to 11-y-olds (n = 4564), including a relatively small group of children diagnosed with ASD (n = 37). Parents of these 8- to 11-y-old children completed assessments of FN and autistic traits and provided height and weight metrics at 12 y of age.

Results

Children with ASD were rated as more food neophobic than their same-age non-ASD peers (2.67 ± 0.83 compared with 2.22 ± 0.73; P < 0.001), and there were subclinical associations between FN and ASD traits (social, communication, and restricted/repetitive behavior) in this community-based sample of children (P < 0.05). Moreover, whereas FN alone predicted lower BMI, the interaction of FN and ASD traits predicted higher BMI (P ≤ 0.01), suggesting that elevated ASD traits in combination with FN exert opposing influences on weight compared with FN alone.

Conclusions

These findings implicate clinical and subclinical connections between ASD traits and feeding behaviors that could affect health outcomes and therefore should be further explored in future studies of shared etiology and intervention strategy.