When Mother Nature serves up too much of a good thing, sometimes humans have to step in to do a custom redesign.
Vitamin D is an important nutrient.
It s added to milk and produced naturally when skin is exposed to sunlight. It s also thought to help prevent certain cancers, such as those of the breast, colon and prostate. Problem is, in concentrations powerful enough to fight cancer, vitamin D also depletes calcium in the bones. In extreme cases that can be fatal. Now, Johns Hopkins researchers have tested a redesigned vitamin D on mice.