Ann Pediatr Endocrinol Metab.  2019 Mar;24(1):22-26. 10.6065/apem.2019.24.1.22.

Response to vitamin D replacement in overweight and normal weight children with vitamin D deficiency

• Chung IH
• Kang YS
• Yoo EG

• KMID: 2447372
• DOI: http://doi.org/10.6065/apem.2019.24.1.22

Abstract

PURPOSE
It is well known that obesity is related to vitamin D deficiency (VDD). We investigated the response to vitamin D replacement in normal-weight and overweight children.
METHODS
This was a prospective study including 62 Korean children with VDD. VDD was defined as a serum 25-hydroxycholecalciferol (25(OH)D) concentration <20 ng/mL. Overweight was defined as a body mass index (BMI)≥the 85th percentile (n=21), and normal weight as a BMI between the 5th and 84th percentiles (n=41). All participants received vitamin D3 supplementation (2,000 IU/day) for 8 weeks. The serum levels of 25(OH)D, PTH and biochemical parameters were measured before and after treatment.
RESULTS
The mean age was 10.0±1.4 years in normal-weight children and 10.0±2.1 years in overweight children (P=0.93). After 8 weeks of treatment, 61.9% of normal-weight children and 47.6% of overweight children achieved vitamin D sufficiency (P =0.30). The mean serum 25(OH)D levels after vitamin D replacement were 33.8±7.6 ng/mL and 30.3±6.6 ng/mL in normal-weight and overweight children, respectively (P =0.10). The mean calcium/creatinine ratios after treatment were 0.09±0.07 and 0.08±0.06 in the normal-weight and overweight groups, respectively, and no hypercalciuria was found. In multiple regression analysis, the response to vitamin D replacement was influenced by the BMI (β=-1.0, P=0.03) and sex (β=-4.0, P=0.04).
CONCLUSIONS
Eight weeks of vitamin D replacement (2,000 IU/day) is sufficient to overcome vitamin D deficiency in normal-weight and overweight children without any complications.

Keyword

Vitamin D; Child; Supplement; Overweight; Obesity

MeSH Terms

Body Mass Index
Calcifediol
Child*
Cholecalciferol
Humans
Hypercalciuria
Obesity
Overweight*
Prospective Studies
Vitamin D Deficiency*
Vitamin D*
Vitamins*
Calcifediol
Cholecalciferol
Vitamin D
Vitamins

Figure

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  Fig. 1. Vitamin D Status in normal weight and overweight group after vitamin D replacement.

Reference

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