About 30 years ago a research paper was published that raised the question of the connection between sunlight and reduction of cancer risk. The paper elaborated on the obvious conclusion that followed from sunlight’s effect on humans ability to synthesize vitamin D in its golden presence. The data that triggered the study was geographical data of the incidence of cancers across the United States of America. The southern half of the USA had a lower death rate from cancer than the northern half, but the northeast had the highest rates. For example its rates for colon cancer were twice as high as the southwest region. At the time it was published most of the medical establishment rejected it, but today the paper’s conclusion about the benefit of vitamin D for reducing the risk of cancer have been validated by many medical studies.
The best known studies include breast cancer and colon cancer, but other studies have validated the benefits of adequate vitamin D for 17 other cancers including prostate cancer. It is estimated that if everyone maintained even moderate levels of vitamin D that the deaths from many common cancers would be reduced by about 60%. For folks such as seniors who do not absorb the sun very well and those who live in a region where the sun is not high in the sky, supplements are available. This is very good news for seniors who are concerned about taking preemptive steps against cancer to protect their senior health. In particular senior women can reduce their risk of breast cancer and senior men can protect their prostate health by supplementing with vitamin D.