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nightsurfer on 2009-09-24Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004.
Ginde AA, Liu MC, Camargo CA Jr.
Arch Intern Med. 2009 Mar 23;169(6):626-32.
Conclusions National data demonstrate a marked decrease in serum 25(OH)D levels from the 1988-1994 to the 2001-2004 NHANES data collections. Racial/ethnic differences have persisted and may have important implications for known health disparities. Current recommendations for vitamin D supplementation are inadequate to address the growing epidemic of vitamin D insufficiency.