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
Missaukee County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 14,849. The county seat is Lake City. Missaukee County is part of the Cadillac, MI Micropolitan Statistical Area. The county is considered to be part of Northern Michigan.