Eating behaviors最新文献

The promotion of harmful dieting-related products, including weight-loss, muscle-building, and cleanse/detox supplements, is pervasive across TikTok. Use of these products has been associated with eating pathology, and in some instances, increased risk of an eating disorder diagnosis. To inform eating disorders prevention and public health intervention, a content analysis was conducted to analyze the promotional features of the most viewed videos as of June 2022 in the U.S. across popular dieting product-related hashtags (#dietpills, #preworkout, #detox) (N = 233 videos). Investigators watched and coded videos using a codebook that captured details about featured individuals, product claims and details, and other video elements (e.g., language, use of popular music). Descriptive statistics were obtained to analyze trends within and across product hashtags. A total of 78 #dietpills, 86 #preworkout, and 69 #detox videos met study criteria. Videos promoting weight-loss and cleanse/detox products overwhelmingly featured feminine-presenting (70.5 % and 71 %, respectively) and thin (35.9 % and 44.9 %) individuals, while #preworkout video subjects were mostly masculine-presenting (73.3 %) and muscular (61.6 %). Most did not disclose their credentials (93.6 %) nor identify whether the promotion of the product was sponsored by the retailer (95.7 %). The vast majority of videos (97 %) did not provide any scientific evidence to support health- and appearance-related claims. The most popular videos promoting dieting-related supplements on TikTok overwhelmingly make unsubstantiated health claims, posing substantial risks for social media users who are vulnerable to their usage and associated health risks, including engagement in disordered eating.

An understudied cognitive bias within eating disorder (ED) psychopathology is Thought-Shape Fusion (TSF), which involves irrational beliefs about the likelihood and moral implications of feared outcomes related to shape, weight, and food. This phenomenon has received less attention within the context of ED treatment, with little known about potential processes of change to address TSF and ultimately promote ED recovery. We propose cognitive defusion as a process of change, a metacognitive process that emphasizes observing thoughts objectively rather than appraising thoughts as absolute truth. We explored whether cognitive defusion, that is, reductions in body image-related cognitive fusion, mediated the relationship between trait-level TSF and treatment outcomes in a transdiagnostic ED sample of adult and adolescent females (N = 130) presenting to residential care. We found that reductions in body image-related cognitive fusion mediates the association between trait-level TSF at baseline and ED severity at discharge. However, when the sample was separated into adolescent and adult subgroups, these results only remained significant for adolescents. These findings underscore the relevance of targeting cognitive defusion as a potential mechanism to address the impact of trait levels of TSF cognitions on ED psychopathology.

Objective

People with attentional problems are at increased risk of eating disorders. This paper aimed to systematically review and synthesize the existing evidence on stimulant medication in the management of patients with bulimia nervosa (BN) or anorexia nervosa (AN) with or without comorbid attention deficit hyperactivity disorder (ADHD).

Method

A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. A protocol for the review was registered with Open Science Framework (OSF) Registry and critical appraisal of the literature was conducted using Joanna Briggs Institute (JBI) Critical Appraisal Tools.

Results

Thirteen articles met inclusion criteria including two quasi-experimental studies, one randomized controlled trial, four case series, and six case reports. 26 cases were included from studies and 32 from case series/reports. Only two cases from a single case report had a diagnosis of AN, while the remainder had BN. Stimulants included methylamphetamine, lisdexamfetamine, methylphenidate, dextroamphetamine sulphate and mixed amphetamine salt. In nearly all cases of BN there were reported reductions in eating disorder symptoms. The rates of adverse effects were high and included weight loss, decreased appetite, tachycardia, dry mouth, fatigue, insomnia, restlessness, nausea, bruxism, headache, palpitations, blood pressure changes, irritability, anxiety, depressed mood, and diaphoresis.

Conclusion

There is currently insufficient evidence to support the use of stimulant medications to treat symptoms of BN or AN. The authors recommend considering screening patients with BN for ADHD.

This study aimed to assess how parent stress and COVID-19 impact on the family are associated with parental pressure to eat during the COVID-19 pandemic. Parents of healthy preschool-aged children completed measures including pressure to eat (Child Feeding Questionnaire), parent perception of their stress (Perceived Stress Scale), household food insecurity (Hunger Vital Sign) and effects of COVID-19 on families (COVID-19 Exposure and Family Impact). Children (N = 228) were racially, ethnically, and socioeconomically diverse (34 % Black, 15 % Hispanic, and 29 % with household income <$20,000). Bivariate analyses showed that parent stress at Year 1 (β 0.02; 95 % CI 0.006, 0.04) was significantly associated with pressure to eat at Year 1 and that COVID-19 impact at Year 1 (β 0.02; 95 % CI 0.001, 0.03) was also significantly associated with pressure to eat. Multivariable linear regression analyses showed that parent stress at Year 1 was significantly associated with pressure to eat at Year 1 (β 0.39; 95 % CI 0.16, 0.61) while COVID-19 impact was not significantly associated with pressure to eat at Year 1. This study, consisting of racially and socioeconomically diverse children, found that while parent stress was significantly associated with increased parental utilization of pressure to eat feeding practice, COVID-19 impact was not significantly associated with pressure to eat in adjusted analyses. This suggests that overall perceived stress by parents could be an important factor in parent pressuring feeding practices.

Introduction

College campuses provide an expansive food environment, which may contribute to elevated risk of excess energy intake and weight gain among college students. All-you-can-eat style cafeterias often expose students to hyper-palatable foods (HPF), which may promote overeating. This study aimed to examine the availability of HPF in an all-you-can-eat college cafeteria, and to examine HPF intake during meals among undergraduates.

Method

Publicly available cafeteria menu data from a Midwestern university were analyzed and included 25 meals. To determine the availability of HPF within the cafeteria meals, the standardized definition of HPF by Fazzino et al. (2019) was used, which specifies combinations of palatability-inducing nutrients at quantitative thresholds that may induce hyper-palatability. Participants (N = 225) who ate in the cafeteria in the past 24 h were presented with a list of all menu items for their corresponding cafeteria meal, and self-reported all items consumed.

Results

On average, 40 % (SD = 1.4) of total food items available per meal were HPF, with 68 % (SD = 3.6) of items with elevated fat and sodium. Regarding intake of HPF among students, approximately 64 % (SD = 31.4) of foods consumed were HPF, and 51 % (SD = 32.3) of items consumed had elevated fat and sodium.

Conclusion

Findings indicated that college students may be regularly exposed to HPF in all-you-can-eat college cafeteria environments, and that students may consume cafeteria meals that are primarily comprised of HPF.

Although research has illustrated that racial disparities in access to treatment for binge-eating disorder (BED) among Black women exist, little is known about the psychosocial related experiences of binge eating behaviors among Black women. Binge eating disorder is characterized by the recurrent consumption of large amounts of food within a brief period, accompanied by a loss of sense of control over the eating and distress over the eating behaviors. Past research has shown that race and gender related stressors are positively associated with emotional eating among Black young adult women and that they may engage in problem-solving coping strategies like identity shifting (conscious and unconscious alterations of thoughts, behaviors, perspective, and appearances) to manage these stressors. Considering the literature, the present study was developed to examine the mediating role of identity shifting in the relationship between gendered racism and binge eating symptoms among young adult Black women. To test this assertion, we administered an online survey to 239 Black women (M_age = 27.32). The results indicated that gender racism significantly predicted both identity shifting and binge eating and identity shifting significantly predicted binge eating. Additionally, identity shifting accounted for 34.5 % of the associations between gendered racism and binge eating symptoms. These findings highlight the importance of exploring experiences of discrimination and coping strategies when considering ways to reduce mental health concerns, such as binge eating symptoms, among young adult Black women.

Intuitive eating is defined as being connected to internal hunger, satiety, and appetitive cues and flexibly using these cues to determine when, what, and how much to eat. The Intuitive Eating Scale-2 (IES-2) is a widely used measure of facets of intuitive eating. However, the scale has shown unstable factor structure in several validation studies and there is a lack of studies investigating the measurement invariance of the IES-2 beyond sex. We aimed to evaluate the psychometric properties of the IES-2, testing several factor structures among Brazilian and U.S. samples of men and women; to test measurement invariance across country of origin, ethnicity, sex, and sexual orientation; and to evaluate its internal consistency. Three models of the latent structure of the IES-2 were tested using confirmatory factor analyses (CFA) in a total of 1072 young adults (452 Brazilians and 620 Americans), aged 18–35 years. Results demonstrated that only a 3-factor solution with 11 items of the IES-2 showed adequate fit to the data for both countries. This model demonstrated scalar invariance across sex and sexual orientation, but only configural invariance was found across country of origin and ethnicity. Good internal consistencies were found for both the Brazilian and American samples. The present study provides support for a 3-factor solution with 11 items of the IES-2, to Brazilian and American samples. The study also offers evidence of internal consistency, and invariance between sex (i.e., male and female) and sexual orientation (i.e., heterosexual participants and sexual minority participants).

This study aimed to determine the prospective association between creatine monohydrate use and muscle dysmorphia symptomatology among adolescents and young adults in Canada. Data from 912 adolescents and young adults from the Canadian Study of Adolescent Health Behaviors were analyzed. Creatine monohydrate use in the past 12 months was assessed at Wave 1, and muscle dysmorphia symptomatology was measured using the Muscle Dysmorphic Disorder Inventory (MDDI) at Wave 1 and Wave 2. The prospective associations between creatine monohydrate use and the MDDI total score and subscale scores were determined using linear regression analyses. Regression analyses controlled for relevant demographic identifiers, prior substance use, and the corresponding Wave 1 MDDI variable. Creatine monohydrate use at Wave 1 was prospectively associated with both total muscle dysmorphia symptomatology (B 1.34, 95 % CI 0.27, 2.42) and greater Appearance Intolerance (B 0.52, 95 % CI 0.02, 1.03) at Wave 2. Importantly, these findings were independent of prior muscle dysmorphia symptomatology, lifetime anabolic-androgenic steroid use, lifetime cigarette use, and frequency of alcohol use. Creatine monohydrate is commonly used among adolescents and young adults. Findings from this study are among the first to document that creatine monohydrate use may be a risk factor for the development of muscle dysmorphia symptomatology among adolescents and young adults. Health and mental health care professionals may consider assessing for both creatine monohydrate use and muscle dysmorphia symptomatology among adolescents and young adults.

Affective symptoms (e.g., depression, anxiety, shame) are a potent risk factor for binge eating. However, less is known on the role of loneliness as a moderator of affective symptoms and binge eating. This objective of the current study was to investigate main effects and interactions of affective symptoms and loneliness in relation to binge eating in college women. A sample of 556 undergraduate women completed self-report questionnaires of affective symptoms, loneliness, and binge eating. Results revealed significant interactions between each affective symptom variable and loneliness in relation to binge eating, such that loneliness strengthened the positive association of affective symptoms and greater binge eating. The findings of this study demonstrate an important role of loneliness to binge eating among college women, especially those with underlying affective vulnerabilities. More theoretical and treatment-oriented work on the role of loneliness in binge eating is needed to understand mechanisms and interventions/preventions.

The benefit of food-specific inhibition training on modulating food valuation and eating behaviors has been established, but generalization to untrained foods is seldomly examined. This study investigated whether stimulus variability and practice order, found to effect generalization in motor learning, can improve generalization following food-specific inhibition training. Ninety-three young adults practiced the Go/No-Go task online in three training conditions: 1) Constant (N = 30): inhibition practiced on one food stimulus; 2) Variable-Blocked (N = 32): inhibition practiced on 6 food stimuli, each in a separate block; and 3) Variable-Random (N = 31): inhibition practiced on 6 food stimuli in random order. Consistent with our hypothesis, the Variable-Random group showed better generalization of inhibition to untrained foods than the Constant and the Variable-Blocked groups immediately after training, demonstrating the benefit of stimulus variability and random practice order. This effect was not present 24 h after training. The Variable-Random group also showed decreased desire to eat untrained foods, exhibiting generalization of food devaluation. However, this effect was only present 24 h after training. The Constant group showed increased desire to eat untrained foods immediately and 24 h after training. The Variable-Blocked group did not differ from either group in the desire to eat to untrained foods, suggesting that random order is important for exposing the benefit of variability. The findings illustrate that presenting various training items in random order can improve generalization of food-specific inhibition training. However, inconsistencies found in the timing of generalization effects and modest effect sizes warrant additional investigation into generalization principles of food-specific inhibition training.