A study by a team at the Sunlight, Nutrition and Health Research Center and that was recently published in the Anticancer Research journal has now added another layer to the growing pile of research that indicates that adequate vitamin D and skin exposure to solar UVB can help to reduce the risk of breast cancer as well as a number of other types of cancers.
The research showed that there was a direct link between vitamin D levels and solar ultraviolet B (UVB) irradiance and reduced rates of cancer mortality. This study was similar to one that had previously been conducted by the researchers (in 2002) but took into consideration a range of additional potential risk factors in order to rule them out.
What it determined was that people who reside in regions of low- and mid-latitude have a lower instance of breast cancer and a lower mortality rate among those who do have the disease than people who live in less sunny, higher latitude locations. More specifically, when looking at the United States, people who live in New Mexico, Utah and Arizona have a lower risk of breast cancer and a lower mortality rate among those who develop the disease than those who live farther north in the New England states.
The conclusion of the study was that greater exposure to UVB from the sun and the heightened vitamin D production is inversely connected with mortality rates from cancer, even when taking other risk factors into consideration.
- (i) The association of solar ultraviolet B (UVB) with reducing risk of cancer: multifactorial ecologic analysis of geographic variation in age-adjusted cancer mortality rates. http://www.ncbi.nlm.nih.gov/pubmed/16886679
Please visit this article to learn more about Vitamin D deficiency and what you can do about it.