Vitamin D: Living in places with little sun increases this serious side effect to the colon

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Elia Tabuenca García
@eliatabuencagarcía

A lack of vitamin D, linked to a little exposure to sunlight, can be the cause of colorectal cancer.

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A lack of vitamin D, linked to a little exposure to sunlight, can be the cause of colorectal cancer.





New research has found that countries with cloudier days and less sunlight tend to have higher colon cancer rates. The cause, according to scholars, could lie in lower levels of vitamin D, the "sunshine vitamin".

So, according to researchers at the University of California, San Diego, increasing vitamin D levels through exposure to sunlight could help reduce the risk of colon cancer.

La human skin produces vitamin D naturally in contact with sunlight, and having an insufficient level of nutrients has been linked to a higher risk of developing a range of health problems. (Read also: Vitamin D: where it is found, what it is used for and how to stock up on it)

The research data is, for the time being, preliminary and more studies and reviews are needed before it can be argued with certainty that a vitamin D deficiency is related to an increase in colon cancer. 

The San Diego team monitored data from 186 countries to assess possible associations between local exposure to UVB sunlight and colon cancer risk.

They found a significant association between lower UVB exposure and higher rates of cancer, among people aged 0 to 75. After taking into account factors such as the skin pigmentation, life expectancy and smoking, the association between lower UVB exposure and colorectal cancer risk remained significant for those over the age of 45. (Read also: VITAMIN D SUPPLEMENTS)


Furthermore, it has been noted how other factors can influence theUVB exposure and vitamin D levels, such as the use of vitamin D supplements, the clothes you wear, and even air pollution.


It is difficult to draw firm conclusions from this study, but it certainly raises a thought-provoking consideration about the role vitamin D plays in the formation of colorectal cancer.



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