Vitamin D May Reduce Cancer Risk.
Researchers suggest that increasing an individual’s serum level of vitamin D could be a key tool for preventing cancer. According to a recent study, women whose 25-hydroxyvitamin D blood levels were 40 ng/ml or higher had a 67% lower risk of developing cancer than women whose vitamin D levels were 20 ng/ml or lower. The researchers did not comment on what the optimum intake of vitamin D should be, nor did they say if it should be achieved by exposure to sunlight, dietary changes, or supplements. They conclude, “Primary prevention of cancer, rather than expanding early detection or improving treatment, will be essential to reversing the current upward trend of cancer incidence worldwide. This analysis suggests that improving vitamin D status is a key prevention tool.”
PLOS One, April 2016