Millions of Americans are walking around with dangerously low vitamin D levels, and many don't even know it. 160 People ...

If you have low vitamin D, the best way to make sure you are getting enough is to take a dietary supplement. Talk to your ...

Women between ages of 30 and 70 need about 600 international units, and once they're over 70, that number goes up to about ...

Your muscle weakness and mood changes might not be just stress – they could be warning signs of vitamin D deficiency.

When the sun is out, your body can potentially make its own vitamin D, but it still may make sense to continue with ...