Groundbreaking new research has traced the source of a wide array of to a single common factor-vitamin D deficiency. Leading rheumatologist and researcher Dr. James Dowd reveals the causes of vitamin D deficiency and offers a simple, easy-to-follow five-step program that can eliminate or alleviate a host of seemingly incurable conditions, such as arthritis, in as little as six weeks. Better yet, by staying on the program, you can enjoy robust health...