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
Lansing /ËlÃ¦nsÉªÅ/ is the capital of the US state of Michigan. It is located mostly in Ingham County, although portions of the city extend west into Eaton County and north into Clinton County. The 2010 Census placed the city's population at 114,297, making it the fifth largest city in Michigan. The population of its Metropolitan Statistical Area (MSA) was 464,036, while the even larger Combined Statistical Area (CSA) population, which includes Shiawassee County, was 534,684. It was named the new state capital of Michigan in 1847, ten years after its admittance as a state.