The U.S. Institute of Medicine is involved in a study that will likely result in an increase in the recommended daily intake of vitamin D. Research shows vitamin D affects nearly every area of the body and low levels of vitamin D can have serious consequences.
It's the vitamin associated with the sun that we absorb through our skin, and increasingly block out when we use sunblock, to avoid getting skin cancer.
Vitamin D is also available in some foods, but as the world gets fatter, Vitamin D gets trapped in body fat.
What doctors are now discovering is that many people don't have enough vitamin D.