J Bone Metab.  2019 Aug;26(3):145-150. 10.11005/jbm.2019.26.3.145.

Is There a Difference in Serum Vitamin D Levels and Bone Mineral Density According to Body Mass Index in Young Adult Women?

Affiliations
  • 1Department of Food and Nutrition, Yeonsung University, Anyang, Korea.
  • 2Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea. byundw@schmc.ac.kr
  • 3Department of Obstetrics and Gynecology, Soonchunhyang University College of Medicine, Bucheon, Korea.

Abstract

BACKGROUND
In the life cycle, bone mineral density (BMD) is the most optimal condition in the 20s. In Korea, vitamin D deficiency status is very serious in Korean women due to recent lack of activity, weight polarization, and inadequate nutritional intake. The purpose of this study was to compare serum vitamin D and BMD according to obesity status in Korean young adult women.
METHODS
A total of 143 female college students participated in the research. Body fat and lean body status were analyzed using a body composition analyzer. Nutrient intakes of the subjects were assessed by 3-days food record method. The BMDs was measured by dual energy X-ray absorptiometry. The subjects were divided into normal weight group and obesity group on their body mass index.
RESULTS
Obesity group showed significantly higher weight, body fat (%), and body fat (kg) than normal weight group and T-scores of lumbar-2 spines were significantly lower. Obesity group showed high triglyceride and low-density lipoprotein cholesterol levels and vitamin D levels were significantly lower. Physical fitness and activity status showed that sit and reach and sit up were significantly lower in obesity group. The intake of carbohydrates was higher in the obesity group than in the normal weight group, and the intake of vitamin C and vitamin D was significantly lower. Factors affecting serum vitamin D were analyzed as body fat (%), lumbar-2 T-score, triglyceride, and carbohydrate intake.
CONCLUSIONS
Obese women need more effort to manage their serum vitamin D status and balanced nutrition to prevent bone loss.

Keyword

Body mass index; Bone density; Nutritional status; Obesity; Vitamin D

MeSH Terms

Absorptiometry, Photon
Adipose Tissue
Ascorbic Acid
Body Composition
Body Mass Index*
Body Weight
Bone Density*
Carbohydrates
Cholesterol
Female
Humans
Korea
Life Cycle Stages
Lipoproteins
Methods
Nutritional Status
Obesity
Physical Fitness
Spine
Triglycerides
Vitamin D Deficiency
Vitamin D*
Vitamins*
Young Adult*
Ascorbic Acid
Carbohydrates
Cholesterol
Lipoproteins
Vitamin D
Vitamins
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