A growing amount of research now indicates why: vitamin D.
The “sunshine vitamin” — because our skin produces it when exposed to sunlight — is known for building healthy bones. But, otherwise, the nutrient has never received much attention. That’s likely to change.
Dozens of laboratory and geographical studies in recent years suggest that vitamin D deficiency is common and that the risk of cancer, as well as other illnesses, is higher among individuals with low vitamin D levels....
