*The following is excerpted from an online article posted on ScienceDaily.
Vitamin D deficiency in middle childhood could result in aggressive behavior as well as anxious and depressive moods during adolescence, according to a new University of Michigan study of school children in Bogotá, Colombia.
Children with blood vitamin D levels suggestive of deficiency were almost twice as likely to develop externalizing behavior problems -- aggressive and rule breaking behaviors -- as reported by their parents, compared with children who had higher levels of the vitamin.
Also, low levels of the protein that transports vitamin D in blood were related to more self-reported aggressive behavior and anxious/depressed symptoms. The associations were independent of child, parental and household characteristics.
"Children who have vitamin D deficiency during their elementary school years appear to have higher scores on tests that measure behavior problems when they reach adolescence," said Eduardo Villamor, professor of epidemiology at the U-M School of Public Health and senior author of the study appearing in the Journal of Nutrition.