Chronic back pain: Vitamin D can make a crucial difference

We're learning more and more about Vitamin D as a key factor in the regulation of immune function and inflammation. In this case series report in the Journal of the American Board of Family Medicine, repletion of Vitamin D with supplementation was the turning point for these folks with chronic back pain and persistent back pain after failed back surgery. It's yet another benefit of Vitamin D optimization added to the long list. How do you know if have enough? Check with the blood test for 25-OH (hydroxy) Vitamin D, but be sure to refer to the optimal (functional) reference range.