Vitamin D helps maintain muscle strength, while reducing inflammation. This combination led researchers to conduct a randomized controlled trial in which they discovered vitamin D supplementation significantly reduced musculoskeletal pain
Vitamin D has anti-inflammatory effects in the body by reducing the release of pro-inflammatory cytokines and suppressing T-cell responses.
The impact of vitamin D on sensory function, including pain processing, has been receiving increasing attention. Indeed, vitamin D deficiency is associated with various chronic pain conditions, and several lines of evidence indicate that vitamin D supplementation may trigger pain relief.
Vitamin D may be the most common and manageable factor in pain: the case for presumptive treatment
The only thing worse than chronic pain with six causes is … seven causes. Obviously. Anything you can do to simplify the pain equation is a good idea, and you can certainly take vitamin D. (Just consult with a doctor first, please.)
Vitamin D deficiency can be fixed. It may be tough to get enough from diet and sunshine, but supplementation is cheap, safe, and effective, so it’s an ideal candidate for presumptive treatment: going ahead and treating based on the presumption of vitamin D deficiency even if it has not been established with blood tests. By all means do that too, of course! But if a lot of healthy people take this stuff “just in case,” it’s hardly radical for pain patients to give it a shot. There’s just not much downside to this one … and chronic pain is a major bummer. So talk to your doctor, get tested, and get supplementing — it could be a big deal for you.
Chronic pain is highly prevalent in the developed world, and levels of vitamin D are often lower among those with chronic pain conditions than those without. Supplementation of vitamin D has been investigated as a potential independent treatment for chronic pain. This paper presents an overview of the scientific evidence and provides recommendations for use of vitamin D in clinical practice with chronic pain patients.
A study  in a previous issue of the Scandinavian Journal of Primary Health Care (SJPHC) adds to the growing list of publications on vitamin D as a possible treatment for chronic pain. It describes a high prevalence of hypovitaminosis D in patients with non-specific musculoskeletal pain, headache, and fatigue.
There have been loads of studies that have linked a lack in Vitamin D to a high increase of Chronic pain,