Yet another study suggests that natural vitamin D levels may help slow the growth of prostate cancer tumors.

“In a new study, men with the highest levels of vitamin D in their blood were 57 percent less likely than men with the lowest levels to succumb to prostate cancer,” Fox News reported of the study conducted at the Harvard School of Public Health. “Prostate cancer is a very heterogeneous disease,” Harvard researcher Dr. Irene Shui, told Fox. “Some tumors progress quickly, spreading to other sites in the body and causing death, while others stay within the prostate for years and never affect a man’s health or life.”

“There is abundant laboratory evidence that vitamin D may have anticancer properties,” Shui said. But while studies conducted on prostate cancer cells growing in lab dishes have shown that vitamin D may thwart cancer’s progression, studies in people have shown that high levels of the vitamin don’t lower a man’s risk of getting cancer of the prostate, the gland surrounding a man’s urethra. That may be because so many men have prostate tumors, but the tumors do not progress in many cases.

To read the Fox report click here.