Food and Nutrition Sciences

Volume 8, Issue 12 (December 2017)

ISSN Print: 2157-944X   ISSN Online: 2157-9458

Google-based Impact Factor: 2.37  Citations  

Human Vitamin D Deficiency in Tibet

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DOI: 10.4236/fns.2017.812084    1,276 Downloads   3,567 Views  Citations

ABSTRACT

Vitamin D contributes significantly to human bone formation, growth, metabolism and disease prevention. During 2007-2009 and 2012-2013, we measured serum calcidiol (25-hydroxyvitamin D3, 25-(OH)D) in Lhasa, Shigatse, Tingri, Nagqu and other places of Tibet in order to get the status of the overall level of vitamin D in Tibet. We also studied influence of area, occupation, age, gender, season and other factors on the serum 25(OH)D level. Results of our study indicate that: 1) in Tibet, the overall serum concentration of calcidiol is in deficiency range (25(OH)D level is 12.25 ng/ml); 2) the serum level of 25(OH)D in different regions is generally the same; 3) the serum level of 25(OH)D in young and middle-aged people is 20% higher than that in elder; 4) the level of 25(OH)D in male is slightly higher than in female; 5) the level of 25(OH)D in summer is significantly higher than that in winter; 6) there are obvious differences in serum level of 25(OH)D among tested subjects with different occupations.

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Gelsor, N. , Ma, L. , Duan, J. , Wangmu, T. and Gelsor, N. (2017) Human Vitamin D Deficiency in Tibet. Food and Nutrition Sciences, 8, 1127-1136. doi: 10.4236/fns.2017.812084.

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