Aim: To determine whether vitamin D deficiency is related to the degree of physical activity or not.
Materials and methods: A total of 113 Bachelor of Medicine and Bachelor of Surgery (MBBS) students of the same batch aged 17 to 21 years (59 boys and 54 girls) were included in this case–control study. Levels of physical activity were determined using a self-prepared questionnaire.
Results: According to vitamin D grading, only 19 (16.8%) students were in normal category, rest of them were either in deficient (69.9%) or in insufficiency (13.3%) category.
Age-matched comparisons between case group and control group revealed that those physically active had higher levels of vitamin D as compared with those with lower physical activity.
Conclusion: Plasma vitamin D deficiency was prevalent even in apparently healthy young individuals. In the case group (who are physically active), the mean of serum vitamin D level was significantly higher (23 ng/dL) than the control group (10.5 ng/dL). Serum vitamin D deficiency was more prevalent in females.
Clinical significance: This study clearly shows that the increased physical activity, especially in sunlight, among individuals should be encouraged not only at home but also at their school and workplace to promote a more active lifestyle that will counteract not only vitamin D deficiency but other benefits as well.
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