Do thoughts about dieting matter? Testing the relationship between thoughts about dieting, body shape concerns, and...

Dieters are likely primed to think about their diet throughout the day (e.g., as they feel hungry). However, prior research has not tested whether and how thinking about dieting might have negative effects, like poor self-esteem and body shape concerns.

We experimentally primed dieters' thoughts about their diets and tested whether: 1) dieting thoughts are related to poor state self-esteem through body shape concerns; and 2) dieting thoughts are related to body shape concerns through poor state self-esteem. Dieting participants (N = 225) were randomly assigned to complete a dieting or neutral prime.

Unexpectedly, there was a different pattern of results across male (n = 72) and female (n = 144) dieters. When accounting for body shape concerns, males primed to think about dieting (vs. neutral condition) reported greater state self-esteem. Further, the dieting prime indirectly led to lower body shape concerns through greater state global self-esteem. However, for females, the dieting prime indirectly led to poorer state self-esteem through its effects on body shape concerns.

The sample was collected online and was predominantly female and Caucasian. Other limitations include self-report of dieting status and body mass index.

The findings suggest that for males, thoughts about dieting may actually be associated with greater state self-esteem, which may indirectly predict lower body shape concerns. In contrast, for females, when thoughts about dieting activate body shape concerns, poorer state self-esteem may follow. These results highlight important, potentially gender-specific relationships between thoughts about dieting, body shape concerns, and state self-esteem.