The Sun Factory Online

The National Institutes of Health has awarded Creighton University $4 million to continue its 2007 landmark study linking vitamin D to a reduction in cancer risk. The study’s findings, reported in June 2007, showed for the first time in a clinical trial that postmenopausal women consuming calcium as well as vitamin D3 supplements at nearly three times U.S. government recommended levels could reduce their risk of cancer by 60-77 percent. That's a substantial decrease!

Most vitamin D researchers are already calling for people to increase their vitamin D levels to 40-60 ng/ml as measured in blood concentration, recognizing that different intake levels will be necessary for different people to obtain those blood levels. Outdoor workers and non-human primates living in sunny climates, groups who make abundant vitamin D naturally through sun exposure to the skin, already have those levels.