A recent NIH funded study published in the journal JAMA Oncology found that women with higher serum 25(OH)D levels experienced improved health outcomes following diagnosis of invasive breast cancer.
In this study, researchers from Kaiser Permanente and Roswell Park Cancer Institute gathered 1,666 participants diagnosed with invasive breast cancer in 2006 in Northern California. The participants had their vitamin D status measured within two months of breast cancer diagnosis and filled out a questionnaire regarding their diet, lifestyle and other risk factors. The researchers followed up with the participants at 6 months, and at two, four, six and eight years.
The researchers prospectively assessed breast cancer recurrence, secondary cancer and mortality. Here is what the researchers found:
News Medical covered this study. Click here to read more.