Vitamin D (or single marker)  

Together with calcium, vitamin D also helps protect older adults from osteoporosis. But Vitamin D has other roles in the body, including reduction of inflammation as well as modulation of such processes as cell growth, neuromuscular and immune function, and glucose metabolism.

This vital nutrient (actually hormone) is one that most people assume is adequate when you live in a sunny environment. But not necessarily - in fact the Australian Bureau of Statistics estimates one in four Australians are deficient!

If you haven't had yours checked, now is the time! This test checks for: 25-hydroxyvitamin D (25-hydroxycholecalciferol) (Body's Reserve)