Regional Vitamin D Deficiency Studied

by CP Staff

According to a report released by the International Osteoporosis Foundation at the 1st Asia-Pacific Osteoporosis Meeting, vitamin D deficiency is a widespread problem in India and Pakistan and insufficiency is prevalent across the entire population in Southeast and East Asia. As a result, researchers are developing a global map to pinpoint areas of vitamin D deficiency around the world.

Researchers and bone health experts reported that vitamin D deficiency is due to lack of exposure to sunshine, genetic traits and dietary factors. In addition, vitamin D deficiency in this area is attributed to skin pigmentation, traditional clothing, pollution and lack of outdoor activities in urban areas.

Exposure to sunlight is the primary source of vitamin D production. However, in individuals with limited sunlight exposure, vitamin D can also be ingested through the diet or supplementation. Vitamin D deficiency is associated with poor bone mineralization and immune function as well as numerous other aspects of health.

The researchers at this meeting discussed the importance of identifying and tracking vitamin D deficiency in these areas at high risk for deficiency. The group is developing a global map to identify areas of high risk of vitamin D deficiency using serum levels of 25(OH)D as a biomarker. The maps will track vitamin D deficiency in regions as well as in specific population groups. The global maps will allow for increased education and intervention in these high-risk areas.

The researchers hope that by facilitating global comparisons, the maps should provide an incentive for health authorities to implement strategies to improve vitamin D status in the population.

Reference:

Malhotra N, Mithal A. Vitamin D status in Asia. The International Osteoporosis Foundation 1st Asia-Pacific Osteoporosis Meeting, Singapore, December 13, 2010.