NUTR100 Lecture Notes - Lecture 20: Anorexia Nervosa, Eating Disorder, Disordered Eating
13 Jun 2018
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Eating Disorders
- Normal eating: varies from person to person, variety of foods, not restricting intake,
feeling comfortable with body
- Continuum: food is not an issue → concerned about wellbeing→ food
preoccupied/obsesses → disruptive eating patterns → eating disorders
- Continuum of Body: body ownership→ body acceptance→ body
precoccupied/obsessed→ distorted body image→ body hate/dissociation
- Causes:
o Genetic and biological
▪ Several times higher if biological relative has eating disorders
▪ Hard to separate genetic or environemental influences
▪ May exhibit specific personality traits
o Environmental
▪ Genetic predisposition for an eating disorder may not be manifested until
the environment triggers the behavior
▪ Palys a role in the development of an eating disorder in 20-40% of people
o Family environment
▪ Family influences what we eat and our patterns with regard to eating
▪ Families with an anorexic member seem to have a more rigid family
structure
▪ Those with bulimia have a less stable family structure
o Media images
▪ Computer enhanced images of perfect bodies
▪ Adolescents are not always able to distinguish between reality and media
fantasy
▪ Comparing themselves to these images, adolescents may develop a
negative body image
o Sociocultural Values: western cultures value slenderness as beautiful
- Eatin disorders are not the same as disordered eating
o Eating disorder: psychiatric condition involving extreme body dissatisfaction and
long term eating patterns harming the body
o Other specified feeding or eating disorder (OSFED) and Unspecified feeding or
Eating Disorder (UFED): variety of abnormal or atypical eating behaviors used to
reduce weight
- Anorexia Nervosa: medical disorder in which unhealthful behaviors are used to maintain
a body weight of less than 85% of expected weight
o 90-95% are young girls and women
o .5-4% of Canadian females will develop anorexia
o 5-20% of females with anorexia will die from complications
o Symptoms: extremely restrictive eating practices, self starvation, intense fear of
weight gain, unhealthful view of body image.
o Health risk: electrolyte imbalance
▪ Cardiovascular problems
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Document Summary
Normal eating: varies from person to person, variety of foods, not restricting intake, feeling comfortable with body. Continuum: food is not an issue concerned about wellbeing food preoccupied/obsesses disruptive eating patterns eating disorders. Continuum of body: body ownership body acceptance body precoccupied/obsessed distorted body image body hate/dissociation. Eatin disorders are not the same as disordered eating: eating disorder: psychiatric condition involving extreme body dissatisfaction and long term eating patterns harming the body, other specified feeding or eating disorder (osfed) and unspecified feeding or. Eating disorder (ufed): variety of abnormal or atypical eating behaviors used to reduce weight. Anorexia nervosa: medical disorder in which unhealthful behaviors are used to maintain a body weight of less than 85% of expected weight: 90-95% are young girls and women. Pica: persistent eating of non nutritive substances for a period of at least one month.
