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J Adolesc Health Care. 1987 Sep;8(5):400-6.

Zinc deficiency in anorexia nervosa.

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1
Department of Pediatrics, Stanford University Medical Center, Davis.

Abstract

Adolescents with anorexia nervosa were evaluated for clinical and biochemical evidence of zinc deficiency. To assess whether these patients would benefit from zinc supplementation, a double-blind, randomized, controlled trial was conducted. The mean zinc intake of the anorexic group calculated on the basis of three-day dietary records was 7.7 +/- 5.2 mg/day, which is significantly below the recommended daily allowance of 15 mg for adolescents (p less than 0.001). The mean urinary zinc excretion in the anorexic group was 257.1 +/- 212.7 micrograms/24 hours compared to 749.9 +/- 897.8 micrograms/24 hours in the control group (p less than 0.005). This result suggests that the zinc status of anorexia nervosa patients may be compromised due to an inadequate zinc intake. Zinc supplementation (50 mg elemental zinc/day) was followed by a decrease in the level of depression and anxiety as assessed by the Zung Depression Scale (p less than 0.05) and the State-Trait Anxiety Inventory (p less than 0.05), respectively. Our data suggest that individuals with anorexia nervosa may be at risk for zinc deficiency and may respond favorably after zinc supplementation.

PMID:
3312133
[Indexed for MEDLINE]
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