A new meta-analysis and systematic review found a Vitamin E deficiency may be associated with an increased risk of colorectal cancer.
Researchers looked at 11 studies published between 1950 and 2016. Over 520 colorectal cancer patients and almost 6,000 healthy controls participated in these various studies that looked at the link between serum Vitamin E levels and the risk of developing colorectal cancer.
Colorectal cancer patients were found to have lower serum Vitamin E levels than the healthy control subjects in the hospital based studies. This relationship (Vitamin E levels and colorectal cancer risk) was not found in the population based studies.
Colorectal cancer is the fourth most common cause of death from cancer throughout the world, the third most common type of cancer in men and the second most common type of cancer in women. The most worrisome aspect of this type of cancer is that its possible causes are not completely understood.
Due to flaws in some of the study designs, “prospective cohort studies should be conducted to assess the effect of serum Vitamin E on the risk of colorectal cancer”.
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