Studies about vitamin D and chronic pain:

Improvement of Pain, Sleep, and Quality of Life in Chronic Pain Patients with Vitamin D Supplementation (2013)

Conclusion: In a study of 28 U.S. military veterans suffering from chronic pain, vitamin D supplementation was found to be effective for improving their pain levels, sleep quality, and overall quality of life.

 

An Excess of Widespread Pain Among South Asians: Are Low Levels of Vitamin D Implicated? (2005)

Conclusion: This study of over 3135 people in England found that those of South Asian origin suffer from and seek treatment for chronic musculoskeletal pain much more than white Europeans. The study also found that those suffering from musculoskeletal pain also had lower vitamin D levels, which strongly suggests that the pain is a symptom of vitamin D-deficiency-related osteomalacia. This is due to South Asians having darker skin, which is evolved to protect them from the intense sunlight found closer to the equator. Unfortunately, this darker skin is not well-suited for living in Northern Europe, where it prevents cutaneous vitamin D synthesis in England’s low-sun climate and contributes to chronic, pandemic vitamin D-deficiency among non-whites.

 

Musculoskeletal Pain in Female Asylum Seekers and Hypovitaminosis D3 (2004)

Conclusion: Middle-eastern immigrant asylum seekers to northern Europe and the northern U.S. have a high prevalence of severe vitamin D-deficiency and it’s worst symptoms. This is due primarily to their darker skin, evolved to handle intense sunlight, being ill-suited for living far away from the equator in regions with low sun intensity. Exacerbating the problem is the practice of Middle-eastern women wearing veils and hijabs, further blocking the UVB sunlight necessary for vitamin D production. Typical symptoms they seek treatment for are osteomalacia and unspecified musculoskeletal pain.

 

Vitamin D Deficiency and Chronic Low Back Pain in Saudi Arabia (2003)

Conclusion: In a study of 360 people in Saudi Arabia seeking treatment for lower back pain, it was found that 83% had “an abnormally low level of vitamin D.” For those with low vitamin D levels, 95% experiencing an improvement in their symptoms following vitamin D therapy.

 

Prevalence of Severe Hypovitaminosis D in Patients With Persistent, Nonspecific Musculoskeletal Pain (2003)

Conclusion: Of 150 patients seeking treatment for chronic musculoskeletal pain, 93% were found to be vitamin D-deficient.

 

Treatment of Vitamin D Deficiency Due to Crohn’s Disease with Tanning Bed Ultraviolet B Radiation (2001)

Case Study: This crohn’s disease patient suffering from chronic vitamin D deficiency was prescribed to use a UVB tanning bed for 10 minutes three times per week. After only one month her vitamin D levels “increased by 357% from 7 to 32 ng/mL” and after six months of this she was cured of the musculoskeletal pains she was suffering.

 

Low Back Pain in Elite Rhythmic Gymnasts (1999)

Conclusion: This study of elite gymnasts found that the overwhelming majority of them suffer from occasional lower-back pain. Although this could very well be the result of their physically demanding training, it’s also worth mentioning that they probably train INDOORS – which could potentially lead to a vitamin D deficiency if they’re not getting much sun exposure.

 

Alleviation of Migraines with Therapeutic Vitamin D and Calcium (1994)

Conclusion: “Two postmenopausal migraineurs who developed frequent and excruciating migraine headaches (one following estrogen replacement therapy and the other following a stroke) were treated with combination vitamin D and calcium. Therapeutic replacement with vitamin D and calcium resulted in a dramatic reduction in the frequency and duration of their migraine headaches.”

 

Can Vitamin D Deficiency Produce an Unusual Pain Syndrome? (1991)

Conclusion: 5 people sought medical treatment for unusual physical pain. Their vitamin D levels were tested and it was discovered that they all had inadequate levels. They were given supplementary D2 to take and their pain symptoms were cured in 5-7 days. In one case, months later, a patient stopped taking the vitamin D and the pain symptoms returned.

 

 
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