It is not known why a person develops an eating disorder. However, there is a complex relationship between predisposing traits, triggering factors, and recurring negative or positive feedback in relation to habits intended to provide weight loss. Observational research shows people may be predisposed to developing eating disorders if:
- They or a family member has a history of an eating disorder, depression or addiction to alcohol or drugs
- They have been subjected to negative comments on their body size or shape, or subject to criticism or remarks on their eating habits
- They have external pressure or influence due to their job
- They suffer from anxiety or low self-esteem
- They have an obsessive personality or strive for perfection (even when unrealistic)
- They have suffered sexual abuse
