By [http://ezinearticles.com/?expert=Rosalie_Lynch]Rosalie LynchI have read that one simple vitamin deficiency is causing the increase in diabetes, arthritis, many cancers, multiple sclerosis, high blood pressure, and a host of other preventable diseases. Nearly 100% of people with the diseases listed above lack the proper amounts of vitamin D in their body. Our lives have changed so much from when our grandparents and great-grandparents...