Importance of the Nutrition in the Eating Disorder

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  • 摂食障害における栄養学の重要性
  • セッショク ショウガイ ニ オケル エイヨウガク ノ ジュウヨウセイ

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Abstract

<p>The nutritional knowledge is indispensable to understand pathophysiology and treatment for eating disorders. We should suspect the existence of binge eating disorder or night eating syndrome when we see a patient with treatment-resistant obesity or metabolic syndrome. Abnormal attitudes and behavior related eating, bulimia, emotional changes and social activities that resembled an anorexia nervosa or bulimia nervosa were recognized in the semi-starvation clinical trial of healthy men performed in the 1940s, indicating absolute proof that starvation brings abnormal psychology and behaviors. Most nutrients including vitamins and the trace elements are short in anorexia nervosa patients. Since patients with anorexia nervosa need more caloric requirement for weight maintenance than healthy women, it is hard for them to gain body weight. Short stature is an aftereffect of a patient with early pubertal onset of anorexia nervosa due to malnutrition-induced decrease in insulin-like growth factor-I. Approximately 80% of patients with anorexia nervosa of Japan are lacking in vitamin D, and are complicated with osteoporosis or osteomalacia. In re-nourished period after long-standing malnutrition, patients with anorexia nervosa are prone to reactive hypoglycemia and refeeding syndrome.</p>

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