Eating Disorders vs. Body Dysmorphic Disorder

Key Differences

Binge eating / feeling out of control around food
Eating Disorders: Core
Body Dysmorphic Disorder: Associated
Explanation: Feeling unable to control eating is much more central to eating disorders, while in body dysmorphic disorder it may occur but is usually not the main problem.
Purging behaviours
Eating Disorders: Core
Body Dysmorphic Disorder: Associated
Explanation: Purging is a key warning sign for eating disorders, whereas in body dysmorphic disorder it is less central and more likely to appear alongside broader appearance distress.
Restrictive eating
Eating Disorders: Core
Body Dysmorphic Disorder: Common
Explanation: Restricting food is more central and severe in eating disorders, while in body dysmorphic disorder it may happen as one way of trying to change or manage appearance concerns.
Skin picking
Eating Disorders: Associated
Body Dysmorphic Disorder: Core
Explanation: Skin picking is more likely to be a central appearance-focused ritual in body dysmorphic disorder than in eating disorders.
Social anxiety
Eating Disorders: Common
Body Dysmorphic Disorder: Core
Explanation: Social anxiety tends to be especially central in body dysmorphic disorder, often linked to fears that others are noticing or judging perceived appearance flaws.

Key Similarities

Symptom How it is similar
Distress About Your Body Shape or Weigh Both challenges can involve intense, persistent distress about body shape or weight, which can make them look very similar from the outside.
Constant preoccupation with appearance Both can involve spending a lot of mental energy focused on appearance, making it hard to shift attention away from body-related concerns.
Being very self-critical Both commonly involve harsh self-judgment, especially around perceived flaws, control, or not feeling good enough.
Perfectionism Both can involve rigid standards and a strong sense that the body or appearance must meet an exacting ideal.
Compulsive or repetitive behaviours Both may involve repeated behaviours aimed at reducing distress, such as checking, comparing, seeking reassurance, or trying to feel more in control.
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