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
Wellston lies in the Southeastern part of Manistee County. Though a small county by population, with just over 24,000 residents, this county boasts many fine things including miles of Lake Michigan shoreline, the Manistee National Forest, plentiful fishing and hunting opportunities, devoted craftsmen, and surprisingly, oil and gas reserves.