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
The county with the highest population in the area is Onondaga County with a population of 468,050 is approximately 3.9 times bigger. Figure 3 compares the population change from 2010 to 2016 and we can see Oswego County illustrates a decline of 1,596 (1%). The population percent change for all areas for 2010 to 2016 is shown in Figure 4 and for Oswego County shows it has -1.3% Population Change which is the 5th in Population Change out of 10 total in the area. Comparing Population Change to the United States average of 3.2%, Oswego County