Vitamin D Deficiency in Minority Populations
Americans appear to be getting sufficient levels of vitamin D overall, but certain subgroups are at higher risk of deficiency, government researchers found.
In a CDC nutrition report, mean population levels of serum 25-hydroxyvitamin D were just above 50 nmol/L, reported Christine Pfeiffer, PhD, of the National Center for Environmental Health, and colleagues in the Second National report on Biochemical Indicators of Diet and Nutrition.
However, African Americans had the highest prevalence of deficiency with 31% having levels lower than 30 nmol/L, they said, compared with 12% for Mexican Americans and 3% for non-Hispanic whites (3%).
The researchers called this finding intriguing because clinical data have shown that African Americans have superior bone health (greater bone density and fewer fractures) compared with other ethnic groups. They called for further research to explain this “unusual” finding.
The report, which is a follow-up to a 2008 study, is based on data from the National Health and Nutrition Examination Survey (NHANES) 2003-2006. It offers metrics on 58 vitamins and nutrients, slightly more than double the previous report. Among other nutritional additions are iron and fatty acids, CDC researchers said.
To read more: http://bit.ly/Jbw8ca