This vitamin is the sunshine of your life and it is vitally important to your health. Nearly all living things need the sun to stay healthy, including humans. It is rare that we get sun every day, especially here in the Northeastern United States and many other areas in the world. So nearly 80% of the people that live in places like Northern Maine are Vitamin D deficient. All adults use approximately 4000 IU of their Vitamin D-3 every day. Plus, this vitamin is also a master hormone that directs traffic for all other systems in the body. Nothing works well without this element and it is the first plank of health. The body cannot do without it and someone living with dementia or Alzheimer’s need more of it.