Abstract
Purpose
Previous studies have demonstrated overlapping behavioral features between substance-use disorders and food addiction, the latter of which is particularly prevalent among individuals with overweight or obesity. However, the unique attributes of food addiction as a possible phenotype within overweight and obesity are not fully understood.
Methods
This cross-sectional study recruited participants (n = 46) with overweight or obesity, nearly half (n = 20) of whom met the criteria for food addiction based on the Yale Food Addiction Scale 2.0 (YFAS 2.0) and examined responses to self-report questionnaires that indexed behavioral characteristics relevant to addictive disorders.
Results
Individuals with food addiction exhibited significantly higher scores on the Palatable Eating Motives Scale overall score (p < .001) and subscales for coping (p < .001) and enhancement (p < .001) of emotions, Dutch Eating Behavior Questionnaire Emotional Eating subscale (p < .001), UPPS-P Impulsivity Scale negative urgency (p < .001) and lack of perseverance (p = .01) subscales, and the Food Craving Inventory overall score (p = .02) and subscales of cravings for sweets (p < .01) and fast food fats (p = .02).
Conclusion
Food addiction appears to represent a distinct phenotype within overweight and obesity, marked by greater emotion dysregulation, impulsivity, and cravings, which have been observed in prior studies examining features of individuals with addictive disorders.
Level of evidence
Level III: Evidence obtained from well-designed cohort or case–control analytic studies.
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ES and AG designed the research study, conducted the analyses, and authored the manuscript. All authors have approved the final article.
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The University of Michigan Health and Behavioral Sciences Institutional Review Board (IRB) approved the current study (HUM 00110867).
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Schulte, E.M., Gearhardt, A.N. Attributes of the food addiction phenotype within overweight and obesity. Eat Weight Disord 26, 2043–2049 (2021). https://doi.org/10.1007/s40519-020-01055-7
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DOI: https://doi.org/10.1007/s40519-020-01055-7