Vitamin D, Aging, and the 2005 Dietary Guidelines for Americans

Authors: Johnson, Mary Ann; Kimlin, Michael G.

Source: Nutrition Reviews, Volume 64, Number 9, September 2006 , pp. 410-421(12)

Publisher: International Life Sciences Institute

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Abstract:

The 2005 Dietary Guidelines for Americans recommend that older adults, people with dark skin, and those exposed to insufficient ultraviolet radiation (i.e., sunlight) consume extra vitamin D from vitamin D-fortified foods and/or supplements. Individuals in these high-risk groups should consume 25 μg (1000 IU) of vitamin D daily to maintain adequate blood concentrations of 25-hydroxyvitamin D, the biomarker for vitamin D status. This review considers recommendations for vitamin D-rich foods and dietary supplements, as well as specific problems with self-prescribing sun exposure or artificial sources of ultraviolet radiation to meet the vitamin D recommendations for older people.

Keywords: AGING; DIETARY GUIDELINES FOR AMERICANS; OLDER ADULTS; SUNLIGHT; SUPPLEMENTS; VITAMIN D

Document Type: Research article

DOI: 10.1301/nr.2006.sept.410-421

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