The price of this item is a further reduction temporarily from a deal to buy 2 and get 3 free for $13.98.
Most studies of Americans for Vitamin D create findings that we are deficient. There is widespread recommendation found in various sources, online included, to supplement Vitamin D and Calcium (and of course to supplement Calcium with Magnesium). This provides an easy way to take Vitamin D in a softgel.
Alternatively you can buy 2 for $4.49 during this deal, which expires at the end of January 13th.