Vitamin D2 and vitamin D3 are the forms of vitamin D most important to human health, according to the Mayo Clinic. Vitamin D2 is manufactured by plants, while vitamin D3 is manufactured in the skin when it's exposed to the sun.
Population in families living in Washtenaw County ; Total Population: 238,069; Population Under 18 years: 70,878; Population 18 years and over: 167,191
(Redirected from Lackawanna County, PA) Lackawanna County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 214,437. Its county seat and largest city is Scranton. The county was created on August 13, 1878, following decades of trying to gain its independence from Luzerne County.