The relevance of restrained eating behavior for circadian eating patterns in adolescents

Do British and Chinese adolescents snack for different reasons? A cross-country study using the Theory of Planned Behaviour and eating styles

Snacking is prevalent in adolescents and can have significant health impacts, but there is considerable individual and cross-country variation in determinants on adolescent snacking. The present study examined the role of eating styles (i.e. restrained eating, emotional eating, external eating, mindful eating) and the constructs of an extended Theory of Planned Behaviour (TPB) (i.e. attitudes, subjective norms, perceived behavioural control, habit strength) in predicting adolescent snacking, and the moderating effects of country. A survey was completed by adolescents aged 16-19 years from China (N = 182; mean age = 16.13, SD = 0.87) and England (N = 96; mean age = 17.04, SD = 0.74). Compared to British adolescents, Chinese adolescents showed higher restrained eating (p = .009), lower external eating (p = .004), less positive attitudes (p < .001) and subjective norms (p = .007) to, and less strong habit strength (p = .005) for unhealthy snacking. Mindful eating significantly predicted lower consumption of unhealthy snacks (p = .008) and beverages (p = .001), while restrained eating predicted higher consumption of fruit (p < .001) and vegetables (p < .001), regardless of country. Country showed significant moderating effects of TPB constructs on unhealthy beverages (p = .008) and fruit (p < .001) consumption, and effects on unhealthy snack (p = .023) and vegetable (p = .015) consumption approaching significance. Subjective norms predicted unhealthy snacking frequency regardless of country (p = .001). Habit strength predicted consumption of beverages (p < .001) and fruit (p < .001) only in English adolescents. Mindful eating may be a positive intervention approach to help reduce adolescent unhealthy snacking. TPB-based snacking interventions should carefully consider the country context. Acknowledging country-specific determinants of snacking are recommended.

Restrained eating behaviour, anorexia nervosa and food consumption between children and adolescents: a scoping review

Anorexia nervosa (AN) and restrained eating behaviour (REB) are characterised by reduced food intake to achieve body weight loss. This scope review aimed to describe the existing evidence on the association between AN, restrictive eating behaviour and food consumption. Studies with children and adolescents of both sexes of all races and ethnicities were included. Experimental and observational studies, systematic reviews, meta-analysis, case reports or series, conference abstracts, dissertations and theses were also included. The search was conducted in ten electronic databases and grey literature without language restriction on 14 November 2020. Twenty-four studies met the inclusion criteria. Most studies included girls and identified lower intake of energy content, fat and certain micronutrients. There was also a higher intake of caffeine, fibre, vegetables, legumes and fruits and a lower intake of low-quality snack, fast food, sweets and foods with high carbohydrate and fat contents. The need to improve the quality of the diet among study participants was also identified. Thus, it is recommended that the evaluation of food consumption be careful to develop effective prevention strategies for the development of AN/REB and minimise nutritional deficiencies in these individuals.

Negative Affect and Maladaptive Eating Behavior as a Regulation Strategy in Normal-Weight Individuals: A Narrative Review

Emotions have a powerful influence on eating behavior, and eating behavior can have a powerful effect on emotions. The objective of the present narrative review was to evaluate the relationship between negative affect and maladaptive eating behavior as a regulation strategy in normal-weight individuals. A search of the literature within PubMed®, MEDLINE® and PsycINFO was conducted using a combination of the following terms: “affect”, “negative affect”, “affect regulation” and “maladaptive eating behavior”. A total of 106 papers were identified for full text review and were included in the final set of literature. The manuscript presents an overview of the literature on negative affect and maladaptive eating behavior. It offers a brief overview of restrained, uncontrolled and emotional eating in normal-weight individuals and looks at maladaptive eating behavior used to regulate their affect. Based on the previous research findings, we argue that using more adaptive strategies for emotion regulation (cognitive reappraisal) might result in downregulating integral negative affect to food and in improving eating behavior.

Can the color red trick you into drinking less? A replication study

This replication of the study of Genschow et al. (2012) Genschow et al. (2012) examines the effect of the color red on beverage consumption. In total, 148 men were asked to consume drinks in either red- or blue-labeled cups. Cup labels were assigned at random. Unlike in the previous study, the findings in our replication study did not provide empirical support for the hypothesis that people will drink less from red-labeled cups than blue-labeled cups. The difference between groups in drink consumption was non-significant. Thus, the red color did not have an inhibitory effect on drink intake.