Low Vitamin D Levels May Be Linked to Fibromyalgia Severity

Low Vitamin D Levels May Be Linked to Fibromyalgia Severity
Low vitamin D levels are connected to increased symptom severity, anxiety, and depression in people with fibromyalgia (FM), a recent study suggests. The study, "Fibromyalgia Symptom Severity and Psychosocial Outcomes in Fibromyalgia Patients with Hypovitaminosis D: A Prospective Questionnaire Study," was published in Pain Medicine. Some preliminary data has suggested that hypovitaminosis D (low vitamin D levels) may be a risk factor for fibromyalgia. Some studies suggest an association between low vitamin D levels and chronic, nonspecific pain, and  other studies suggest that taking vitamin D supplements can improve FM symptoms. However, the prevalence of hypovitaminosis D in people with FM is largely unknown, and its effects on this population also are unclear. "The objective of our prospective questionnaire study was to investigate the association between hypovitaminosis D and FM symptom severity," the researchers wrote. "Additionally, we sought to investigate the association of hypovitaminosis D with other secondary outcomes including mood disorders, fatigue, and quality of life." To that end, 593 people with FM (90.6% female, 89.9% white, average age 46.9 years) had their vitamin D levels measured and completed a battery of questionnaires. These included the
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