Lee Swanson Research Update

Calcium Needs Vitamin D to Help Cut Recurrence of Tumors

April 2004

sun_vitamin D

It appears that calcium and vitamin D work hand-in-hand to reduce the risk of recurring colorectal tumors, according to a study published in the Journal of the National Cancer Institute.

In a multi-center, placebo-controlled, randomized clinical trial, researchers assessed individual and combined effects of calcium supplementation and vitamin D status on tumor recurrence in 803 subjects.

They found that study subjects who had low levels of vitamin D in their systems saw no change in tumor recurrence when they supplemented with calcium. Subjects who had higher levels of vitamin D in their systems showed a reduced risk of tumor recurrence after calcium supplementation.

Researchers concluded that "calcium supplementation and vitamin D status appear to act largely together, not separately, to reduce the risk of colorectal adenoma recurrence."

Journal of the National Cancer Institute 95(23):1765-1771, 2003

New to Natural Health?
Tools
Customer Service