Reduce the risk of melanoma by taking vitamin D?

It seems that people who regularly take a vitamin D supplement have a significantly lower risk of developing malignant melanoma or another form of skin cancer. A retrospective cohort study from Finland attempted to determine whether a connection might exist here.

Rising skin cancer rates in Western countries

In our latitudes, cases of a cutaneous malignant melanoma, are becoming increasingly frequent, especially in patients with weakened immune systems. UV exposure is considered the main cause of these diseases. Improved sun protection is suggested to protect against skin cancer, but this would likely lead to a lower supply of the important vitamin D on the other hand.

Finnish study on the connection between vitamin D and lower skin cancer incidence

In a Finnish study, 489 patients were divided into 3 groups. The participants in the three groups took either no vitamin D supplement, only occasionally, or regularly. The comparison showed that those patients who took vitamin D regularly had a 55% lower risk of cutaneous malignant melanoma. Occasional intake led to a 46% reduction in risk. For any type of skin cancer, the values were 52% and 46% respectively.

These results suggest that even an occasional intake of Vitamin D leads to a reduction in the risk of Skin cancer leads.

You can read this study here:

Study: Regular use of vitamin D supplements is associated with fewer melanoma cases compared with non-use

Another study, presented at the 31st Congress of the European Academy of Dermatology and Venereology, found that vitamin D deficiency in skin cancer patients is associated with significantly poorer overall survival. You can read the details of this study in this report:

Report on the study: Association between survival and vitamin D deficiency in melanomas

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