Web-Desk (April 13, 2018): According to a new study people with higher levels of Vitamin D may be at a lower risk of developing all cancers, specifically liver cancer.
The current study included 33,736 men and women between the ages of 40 and 69 years who were enrolled in the Japan Public Health Center-based Prospective Study, an ongoing population-based cohort study started in 1990.Questionnaires administered upon enrollment provided information concerning past medical history and lifestyle factors, and food frequency questionnaires provided dietary data.
Blood samples collected at the baseline health check-up were analyzed for plasma 25-hydroxyvitamin D. Subjects were followed for an average of 16 years, during which 3,301 cases of cancer were diagnosed.
In comparison with men and women whose vitamin D levels were among the lowest 25% of participants, subjects whose levels were among second, third and fourth 25th percentiles had an adjusted risk of developing cancer that was 19%, 25% and 22% lower, respectively.When site-specific cancers were analyzed, those whose vitamin D levels were highest had a 55% lower risk of liver cancer compared to subjects whose levels were among the lowest 25%.
Having higher vitamin D levels failed to be associated with an increased risk of cancer among any types of cancer examined.