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Macronutrient intake associated with weight gain in adolescent girls with anorexia nervosa

Abstract ObjectiveAdolescents and women with anorexia nervosa (AN) are known to severely restrict total calorie and fat intake. However, data are limited regarding specific macronutrient intake associated with weight gain in AN. ObjectiveTo prospectively investigate dietary macronutrient composition associated with weight gain in adolescent girls with AN. MethodA prospective naturalistic study of 90 girls 12–18 years old; 45 with AN and 45 healthy normal‐weight‐controls over a 6–12‐month period. Participants completed four‐day food diaries and underwent body composition assessment using dual energy x‐ray absorptiometry. Weight gain was defined as a ≥10% increase in BMI from baseline. ResultsBaseline clinical characteristics did not differ between girls with AN who did not gain weight (AN‐0) versus those who did (AN‐1) over the following 6–12 month period except for percentage of calories from proteins (p = 0.046). At 6–12 month follow up, AN‐1 consumed a lower percentage of total calories from protein (p = .001), and a higher percentage of total calories from fat (p = .02) compared to AN‐0. AN‐1 had a significant increase in the percentage of total calories obtained from and poly‐unsaturated‐fatty acids (PUFA) (p = 0.006) compared to AN‐0, between baseline and follow up. Within the AN group, BMI at follow‐up was associated positively with percentage of total calories...
Source: International Journal of Eating Disorders - Category: Eating Disorders & Weight Management Authors: Tags: ORIGINAL ARTICLE Source Type: research

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