Vitamin D and prostate health
by Newsletter Editor
In this study, doctors wanted to see if taking 4,000 IU of vitamin D per day was safe, and if it would decrease PSA levels in 44 men with stable, slow-growing, non-aggressive prostate cancer.
Researchers measured PSA levels every two months for a year and took prostate biopsies at the start and end of the study. All the men took 4,000 IU of vitamin D per day.
After 12 months, overall PSA levels had not changed. Biopsies showed 11 percent of the men were stable, 34 percent had an increase in abnormal prostate cells, and 55 percent had improved biopsies or fewer abnormal prostate cells. Doctors also said that vitamin D at 4,000 IU per day was safe.