Vitamin D May Lower Risk Of Cancer

Alicia Farmer
March 12, 2018

Vitamin D is made by the skin in response to sunlight.

Those who came among the highest quarter of vitamin D levels were 20 per cent less likely to develop cancer of any type than those in the lowest quarter.

The importance of the "sunshine" vitamin is not yet fully understood but the colder Scottish climate and its effects have always been linked to the nation's high levels of MS. "However, it's not a case of "the higher the better" when it comes to the concentration of vitamin D in the blood, so there's no need for people to ingest it excessively through supplements and the like". By maintaining calcium levels in the body, it helps keep bones, teeth and muscles healthy.

They analysed the public health records of 33,736 men and women aged 40 to 69.

Compared with the previous studies, this research collected the greatest number of vitamin D measurements and showed that vitamin D protects against cancer but also that, when taken in excess the vitamin D become useless. After accounting for this seasonal variation, the samples were divided into four groups: from the lowest to the highest level.

The protective effects of vitamin D against cancer are much more controversial in clinical studies and the results of epidemiological studies are contradictory.

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The results were then adjusted for several known cancer risk factors, such as age, weight, physical activity levels, smoking, alcohol intake and dietary factors. Beyond the physiological limits, the increase in vitamin D levels does not lead to any reduction of cancer risk.

Experimental studies have shown that vitamin D, and especially its activated form, 1,25-dihydroxyvitamin D would have an anti-proliferative effect on tumor cells through multiple signaling pathways of the cell, involved in stopping the tumor cell cycle, creation of blood vessels and inflammation.

Our vitamin D levels vary depending on the time of year, tending to be higher during the sunnier summer and autumn months than in the winter or spring.

British scientists have long called for vitamin D to be added to common foods such as milk or bread - a policy already used in the US, Canada and Australia. These include oily fish such as salmon and tuna, as well as eggs and mushrooms.

And, given the importance of sunlight - UV-emitting lamps and bulbs can help, as can spending more time outdoors - although be careful about spending too much time in the blazing sun.

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