Three-Quarters of Cancer Patients Lack Enough Vitamin D; Lowest Levels, Worst Cancers
‘There are various levels of evidence to support that vitamin D has a role in either the prevention or the prediction of
outcome of cancer’
Oct. 3, 2011 - More than three-quarters of cancer patients have insufficient levels of vitamin D (25-hydroxy-vitamin D)
and the lowest levels are associated with more advanced cancer, according to a study presented on yesterday at the 53rd Annual Meeting of the
American Society for Radiation Oncology (ASTRO).
"Until recently, studies have not investigated whether vitamin D has an impact on the prognosis or course of cancer.
Researchers are just starting to examine how vitamin D may impact specific features of cancer, such as the stage or extent of tumor spread,
prognosis, recurrence or relapse of disease, and even sub-types of cancer," Thomas Churilla, lead author of the study and a medical student at
the Commonwealth Medical College, Scranton, Pa., said.
Researchers sought to determine the vitamin D levels of patients at Northeast Radiation Oncology Center in Dunmore, Pa.,
a community oncology practice, and to see if vitamin D levels were related to any specific aspects of cancer.
The study involved 160 patients with a median age of 64 years and a 1:1 ratio of men to women. The five most common
primary diagnoses were breast, prostate, lung, thyroid and colorectal cancer.
A total of 77 percent of patients had vitamin D concentrations either deficient (less than 20 ng/mL) or sub-optimal
(20-30 ng/mL). The median serum vitamin D level was 23.5 ng/mL. Regardless of the age or sex of the patient, levels of vitamin D were below
the median predicted for advanced stage disease in the patient group.
Patients who were found to be vitamin D deficient were administered replacement therapy, increasing serum D levels by an
average of 14.9 ng/mL. Investigators will be analyzing if vitamin D supplementation had an impact on aspects of treatment or survival in the
"The benefits of vitamin D outside of improving bone health are controversial, yet there are various levels of evidence
to support that vitamin D has a role in either the prevention or the prediction of outcome of cancer," Churilla said at the Miami Beach
"Further study is needed to continue to understand the relationship between vitamin D and cancer."
People who are physically active and get enough
calcium can strengthen their bones - even in old age
Sept. 12, 2008
Financial Relief for Volkswagen Diesel Owners
You may be eligible for money damages if you owned or leased one of these VW, Porsche or Audi vehicles.
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