In this special report, you'll learn why Vitamin D is so important, the causes of Vitamin D deficiency (including signs to watch for), and what you can do to ensure you're getting enough.Topics covered: Why You Need Vitamin DCauses of Vitamin D Deficiency Symptoms of Vitamin D Deficiency How a Deficiency Affects YouFoods that Contain Vitamin D How Much Do You Need?Diagnosis and Treatmen