Have you had your Vitamin D level checked? If not, you should!Vitamin D is not actually a vitamin at all. It is a hormone, similar to estrogen and testosterone, and it has numerous functions all over the body! Many doctors check Vitamin D levels in elderly patients or those with risk for osteoporosis (thin bones), but in reality Vitamin D levels should be checked in everyone at least once a year! Did you know that 90% of the United States population is deficient in this all important hormone?