Opening windows while pregnant cut the number of low birth weight infants by half

Opening windows while pregnant improves baby's health Natural News

The article attributes the reduction in rate of births of less than 5 pounds to reduction of indoor polutants.

Wonder how much of the reduction was due to more UVB light, and thus vitamin D.

See also VitaminDWiki

• Recurrent pre term birth and low vitamin D – Dec 2012

• Low birth weight associated with vitamin D levels less than 11 ng – Nov 2012

• Infants born early had low vitamin D levels – Oct 2012

• Air pollution while pregnant reduced vitamin D level in infant – Aug 2012

• Low vitamin D increased probability of low birth weight by 60 percent – meta-analysis June 2012

• Hypothesis: UVA through window glass decreases vitamin D - 2009

• UVA from some tanning beds and most windows decrease vitamin D blood levels – March 2012

• Births with low vitamin D weighted less (Hispanic too) – Dec 2015