Food insecurity, weight-based discrimination, weight self-stigma, and mental health in post-bariatric surgery patients

The Impact of Food Insecurity Rate on Bariatric Surgery Outcomes

INTRODUCTION

Various factors impact outcomes following bariatric surgery. Lack of access to healthy food options (food insecurity [FI]) is another potential factor affecting outcomes. No prior studies have directly explored the relationship between residing in a high FI zip code and patient outcomes relating to weight loss after bariatric surgery. We hypothesized that living in a high FI zip code would be associated with decreased weight loss postsurgery.

METHODS

We conducted a retrospective study with 210 bariatric surgery patients at a tertiary referral center from January to December 2020. Patient weight and body mass index (BMI) were recorded at three time points: surgery date, 1 mo, and 12 mo postoperative. Residential addresses were collected, and FI rates for the corresponding Zip Code Tabulation Areas were obtained from the 2022 Feeding America Map the Meal Gap study (2020 data).

RESULTS

The FI rate showed a negative correlation of -18.3% (95% confidence interval: -35% to -0.5%; P = 0.039) with the percentage of excess weight loss (%EWL) at 1 y. In multivariate analysis, preoperative BMI (P = 0.001), presence of diabetes mellitus (P = 0.008), and bariatric procedure type (P = 0.000) were significant predictors of %EWL at 1 y. After adjusting for confounding factors, including sex, preoperative BMI, insurance status, primary bariatric procedure, and emergency department visits, the increased FI rate (P = 0.047) remained significantly associated with a decreased %EWL at 1 y.

CONCLUSIONS

Residing in a high FI, Zip Code Tabulation Areas correlated with a decreased %EWL at 1 y after bariatric surgery. These findings highlight the importance of assessing FI status in pre-bariatric surgery patients and providing additional support to individuals facing FI.

Preliminary associations of body weight, weight bias, and dietary restriction with eating disorder diagnosis in women experiencing food insecurity

Understanding the co-occurrence of food insecurity and eating disorders is a pressing concern. Several factors have been hypothesized to increase risk for eating disorders in women with food insecurity including dietary restriction, body weight, and weight-related bias, but few studies have tested these factors simultaneously to determine which are associated most strongly with eating disorder status. We tested cross-sectional associations of dietary restriction, current body mass index (BMI), weight suppression (i.e. the difference between current weight and highest weight), and weight bias with eating disorder diagnosis in a sample of 99 self-identified women with current food insecurity (54% White; mean [SD] age = 40.26 [14.33] years). Participants completed two virtual study visits consisting of electronic questionnaires and interviews. A binary logistic regression model was conducted to test relations between the hypothesized correlates and eating disorder diagnostic status in the past 12 months, controlling for age, food insecurity severity, and body dissatisfaction. Higher levels of weight suppression and weight bias, but not current BMI, were significantly associated with the presence of an eating disorder. Contrary to our hypothesis, greater dietary restriction was associated with lower likelihood of eating disorder diagnosis. Results suggest high levels of weight bias and weight suppression characterize women with food insecurity who meet criteria for an eating disorder. Women who experience food insecurity and have lost a relatively great deal of weight and/or hold biases about high weight should be screened for eating pathology in clinical settings.

Internalized Weight Stigma and Weight Discrimination: Associations with Quality of Life and Psychosocial Impairment in a Sample Living with Food Insecurity

Research suggests that experiencing weight discrimination is associated with a lower quality of life and poor psychological and physical health. However, much of the existing weight discrimination literature has neglected under-represented groups. Little is known about how the experience of weight discrimination affects quality of life and eating/weight-related psychosocial impairment in those living with food insecurity. The present study investigated the associations of weight discrimination and eating/weight-related psychosocial impairment and quality of life. We examined internalized weight stigma and several psychological indicators as potential mediators. Participants (N = 1085) who were recruited from a local food bank completed a questionnaire assessing food insecurity, weight discrimination, internalized weight stigma, eating disorder pathology, anxiety, depression, eating/weight-related psychosocial impairment, and quality of life. Overall, almost one in four participants reported experiencing weight discrimination. Our serial mediation models indicated that increased experiences of weight discrimination were associated with greater internalized weight stigma and psychopathology, which were in turn associated with lower quality of life and greater eating/weight-related psychosocial impairment. Thus, experiencing weight discrimination may negatively impact quality of life and eating/weight-related psychosocial impairment through its effect on mental health. It is imperative to address the negative effects of the widespread discrimination of people based on their weight.