Recent evidence shows that negative body image may be a potential risk factor for symptoms of orthorexia nervosa (ON). However, whether positive body image plays a protective role against symptoms of ON remains unclear. Although prior research has established associations between body appreciation (a core component of positive body image) and ON symptoms, this research is limited to cross-sectional designs, precluding inferences of temporal precedence. Thus, the present study overcomes this limitation by testing whether body appreciation prospectively predicts ON symptoms. Data were analysed from 1253 adult women (M age = 34 years (SD = 9.4), 81.3% Caucasian) who completed the Orthorexia Nervosa Inventory (ONI) and Body Appreciation Scale 2-Short Form (BAS2-SF) at baseline (T1) and at three-month follow-up (T2). Multiple linear regressions were used to test whether body appreciation scores at T1 predicted ONI subscale scores (behaviours, emotions, and impairments) at T2. Results revealed that higher body appreciation scores at T1 significantly predicted decreased scores on each ONI subscale at T2, though effect sizes were small. Findings provide preliminary evidence that body appreciation may protect against ON symptoms. If replicated, efforts to address ON symptoms may be enhanced by promoting body appreciation.
Keywords: Body appreciation; Body image; Orthorexia nervosa; Positive body image.
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