age ~77
from Cartersville, GA
Professor Susan Lanham-New presenting the Queen's Anniversary Prize wo...
Vitamin D is essential for us to be in good health and mobility. It's ...
Sister Sue.
Do we really need vitamin D and when is the best time to get it from t...
How long do you need in the sun to create enough vitamin D, and what t...
Is vitamin D2 sufficient, or should we all take vitamin D3 instead?