A study conducted in Boston analyzing infants and toddlers for vitamin D deficiency.
Okay, this is serious. The reason the study was initiated was because of a rise in vitamin D deficiency and rickets. The reports were coming from Alaska, Iowa, Nevada, California, North Carolina, Texas and Boston, among others. Vitamin D is necessary for bone and teeth development. Rickets is a disease caused by vitamin D deficiency with symptoms that include:
I think what was most concerning was the lack of symptoms. So the regular screen methods may not be enough.
So for you moms with young ones, this is something to talk with your doctor about. Here is the actual study, if you would like to review the methodology and conclusions.