Gastrointestinal Symptoms and Feeding Problems and Their Associations with Dietary Interventions, Food Supplement Use, and Behavioral Characteristics in a Sample of Children and Adolescents with Autism Spectrum Disorders

Autism spectrum disorders (ASD) are characterized by impairments in social interaction, communication, and restricted, stereotyped behavior. Gastrointestinal (GI), nutritional, and feeding problems are often reported in ASD. We investigated the prevalence of GI symptoms, food selectivity, and mealtime difficulties, and their associations with dietary interventions, food supplement use, and behavioral characteristics in a sample involving 247 participants with ASD and 267 controls aged 2–18 years. Data were collected by a questionnaire. GI symptoms were observed in 88.9% of children and adolescents with ASD, more often in girls than in boys. High rates of food selectivity (69.1%) and mealtime problems (64.3%) were found. Food supplements were used by 66.7% of individuals, mainly vitamins/minerals, probiotics, and omega-3 fatty acids. In the ASD sample, 21.2% of subjects followed a diet, mostly based on gluten and milk restriction, including individuals exhibiting food selectivity. Frequency of GI symptoms, food selectivity, and mealtime problems correlated weakly, but significantly with behavioral characteristics in the ASD group, but not with food supplement use. The study demonstrated that higher frequency of GI symptoms, food selectivity, and mealtime problems are a common problem in pre-schoolers, schoolchildren, and adolescents with ASD, and together with dietary modification, they are significantly associated with ASD.

Examining child mealtime behavior as parents are coached to implement the Mealtime PREP intervention in the home: Findings from a pilot study

Introduction The purpose of this study was to examine parental use of evidence-based mealtime strategies, child mealtime behavior, and parental identification of mealtime problems over time as parents were coached to implement the Promoting Routines of Exploration and Play during Mealtime intervention as part of a pilot study. Method This repeated measures study included data collection during three phases: (a) pre-intervention; (b) intervention; (c) post-intervention. Primary outcome measures included a parental strategy use checklist (parental strategy use) and the Behavioral Pediatric Feeding Assessment (problematic child behavior and parental identification of mealtime problems). Linear mixed models were fitted to assess change over time. Results We observed significant improvements in parental strategy use ( p < .001), child mealtime behavior ( p < .001), and parental perception of mealtime problems ( p = .002) over time. Conclusions The results of these analyses signal that empowering parents to integrate evidence-based strategies into child mealtimes is a promising approach to managing child mealtime behavior. More research is needed to determine the true relationship between parental strategy use and child behavior over time.