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Effects of short-term chromium supplementation on insulin sensitivity and body composition in overweight children: randomized, double-blind, placebo-controlled study.

Authors
Kim, CW; Kim, BT; Park, KH; Kim, KM; Lee, DJ; Yang, SW; Joo, NS
Citation
The Journal of nutritional biochemistry, 22(11):1030-1034, 2011
Journal Title
The Journal of nutritional biochemistry
ISSN
0955-28631873-4847
Abstract
Excessive body weight is inversely associated with insulin sensitivity in children and adults. Chromium supplementation produces modest improvement in insulin sensitivity in adults. The aim of this study was to examine the beneficial effects of chromium supplementation on insulin sensitivity and body composition in overweight children simultaneously modifying lifestyle. Twenty-five overweight children aged 9-12 years were randomized to receive either 400 μg of chromium chloride or placebo in double-blind fashion, during a 6-week lifestyle modification regimen that included nutritional education and 3×90 min of aerobic physical activity weekly. Insulin sensitivity was demonstrated using homeostasis model assessment-insulin resistance and quantitative insulin sensitivity check index (QUICKI). Changes in body mass index (BMI; kg/m(2)), BMI Z-score, waist circumference, body composition and fasting plasma glucose were measured. Although no significant benefit of chromium supplementation over placebo was evident for BMI, BMI Z-score and fasting insulin level, children who received chromium chloride demonstrated more positive changes versus the placebo group in HOMA (-1.84±1.07 vs. 0.05±0.42, P=.05), QUICKI (0.02±0.01 vs. -0.002±0.01, P=.05), lean body mass (2.43±0.68 kg vs. 1.36±1.61 kg, P=.02) and percentage body fat (-3.32±1.29% vs. 0.65±1.05%, P=.04). The desirable effects of chromium supplementation on insulin sensitivity and body composition were more apparent in pre-pubertal children. These results suggest that short-term chromium supplementation can improve insulin sensitivity and body composition in overweight children.
MeSH terms
Body Composition/drug effectsBody Mass IndexChildChlorides/*therapeutic useChromium Compounds/*therapeutic useDouble-Blind MethodFemaleHomeostasisHumans*Insulin ResistanceMaleModels, BiologicalOverweight/*drug therapy
DOI
10.1016/j.jnutbio.2010.10.001
PMID
21216583
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Family Practice & Community Health
AJOU Authors
김, 범택김, 광민이, 득주주, 남석
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