New evidence shows that getting enough D may be the most important thing you can do for your health.

A Canadian medical society recommends pregnant women and nursing moms boost their intake of vitamin D dramatically.

Winter Sun Makes It Difficult to Get Vitamin D Naturally
Newswise          Nov 15, 2007

Shorter days mean that many North Americans cannot get their vitamin D from the sun; they need to take vitamin D supplements. There is evidence that vitamin D may offer protection against cancer.

Vitamin D 'may help slow ageing'
BBC News, UK              Nov 7, 2007

A King's College London study of more than 2,000 women found those with higher vitamin D levels showed fewer ageing-related changes in their DNA.