A team of researchers found that individuals living in countries farther
away from the equator, such as the US, Australia, New Zealand, Canada and Ireland, were at least twice as likely to have leukemia as people living in countries closer to the equator, such as Nigeria, Bolivia, Samoa and Madagascar.
Leukemia is a cancer of the blood cells, most commonly affecting the white blood cells, that help fight infection.
A number of studies have shown that vitamin D metabolites in the blood interact with acute myeloid leukemia (AML) cells. Some studies have also identified low vitamin D levels in patients with AML.
While vitamin D is found in some foods, including oily fish, cheese and egg yolks, it is present in small amounts. The body's
best source of vitamin D is sunlight; ultraviolet B (UVB) radiation from the sun penetrates bare skin, inducing vitamin D synthesis.
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