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
There is also Bangor Township, Bay County, Michigan. Bangor Township is a civil township of Van Buren County in the U.S. state of Michigan. As of the 2000 census, the township population was 2,121. The City of Bangor is located in the northeast corner of the township, but is administratively autonomous. Bangor Township was organized in 1853.