Vitamin D deficiency is a growing public health concern associated with musculoskeletal pain, osteoporosis, and increased fracture risk. This cross-sectional study investigated the prevalence of vitamin D deficiency and its relationship with musculoskeletal disorders among 1,200 adults aged 20–65 years in urban areas. Serum 25(OH)D levels were measured, and participants completed standardized questionnaires on musculoskeletal symptoms. Results showed that 57% of participants had vitamin D deficiency (<20 ng/mL), with higher prevalence in women, individuals with limited sun exposure, and those with sedentary lifestyles. Participants with vitamin D deficiency were 2.3 times more likely to report chronic musculoskeletal pain compared to those with sufficient levels (p<0.01). Findings emphasize the importance of routine vitamin D screening, public health awareness campaigns, and dietary supplementation to prevent musculoskeletal disorders.

Keywords:
Vitamin D Deficiency, Musculoskeletal Disorders, Adults, Public Health, Nutrition