NUTR SCI 132 Lecture 19Outline of Last Lecture I. Weight FluctuationsII. Disease Risk TerminologyIII. Obesity Epidemica. Trendb. Treatmentc. Techniques for weight lossOutline of Current Lecture I. Eating Disordersa. Continuumb. Contrast to Disordered EatingII. Anorexia NervosaIII. Binge Eating DisorderCurrent LectureI. Eating Disorders (material NOT on 2nd exam)a. ContinuumNegative Balance Energy Balance Positive BalanceStarving Eating for hunger OverweightUnderweight Normal Weight BingingAnorexia Nervosa Binge Eating DisorderThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. OVEREATUNDEREAT NORMALBulimia NervosaNormal Weight with fluctuationsSwing btwn starving and bingingb. Disordered Eatingi. Most people have done this occasionally1. Thanksgiving2. Skipped lunch every so oftenc. Eating Disorderi. Def: Severity (and frequency) go beyond a certain pointii. Etiology (Causes)1. Psychological Disorders (NOT nutritional disorder!)a. Internal Factorsi. Family, geneticsb. External Factorsi. Societal Pressuresiii. Demographics1. 95% femalea. Under diagnosed in males2. 90% Upper and middle class3. Near 100% in wealthier nations4. 80% highly educated householdsiv. Incidence1. 1 in 100-150 women2. 20% of college-age womenII. Anorexia Nervosaa. Characterized by:i. Severe under eatingii. Weight Loss >25% Body Weightiii. Refusal to maintain weight (Voluntary Behavior)iv. Fear of Obesityv. Distorted Body Imageb. Historyi. 1st description in 1689ii. Increases during “flapper” era (1900s) and by “Twiggy” model (1960s)c. Statisticsi. 3% of college women1. Least common of 3 eating disordersd. Onseti. Early adolescence1. Familiar patterna. Geneticsb. Beliefs about food, etc.e. Mortalityi. Unremitting unless there is intervention!1. 1/3 die if don’t receive interventionii. 5-10% (mostly untreated ppl)f. Peculiar Behaviorsi. Obsessive/compulsiveii. Hoarding foodiii. Perfectionismiv. High Functioningg. Complications (Effects)i. Hypothermia – low body tempii. Edema – Protein Energy Malnutritioniii. Amenorrhea - cessation of normal menstrual cycles1. Earning sign for BONE LOSS!iv. Muscle Wastingv. Hypotension – low BPvi. Lanugo – fine downy hair on skinvii. Brittle hair, nails & skinviii. Weakness, fatigue, Decreased Immune Responseix. Electrolyte Imbalance1. Heart arrhythmiaa. Heart Failure (death)h. Treatmenti. Impatient (hospitalization)ii. Therapy, counselingiii. Nutrition Educationiv. Drug Treatment1. AntidepressantsIII. Binge Eating Disordera. Characterized by:i. Binging1. Abnormally large amount of food in discrete periodsii. High kcal, easily ingested foodiii. Inconspicuousiv. Loss of Control1. Stopped by pain, sleep, interventionv. Increased Body Weightb. Historyi. Not recognized until 1994c. Demographicsi. 15% college womenii. Significant subset of obeseiii. Significant subset of depressedd. Onset i. Early adulthood (30s)ii. Stress-induced bingese. Complicationsi. Social Isolationii. Heartburniii. Bloatingiv. Hyperthermiav. Diarrhea or Constipationvi. Type II Diabetesf. Treatmenti. Outpatientii. Psychotherapyiii. Nutrition counselingiv. Exercisev. Drug Treatment –
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