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Table 1 Average daily dose of supplemental vitamin D (self reported)

From: Latitude, sun exposure and vitamin D supplementation: associations with quality of life and disease outcomes in a large international cohort of people with multiple sclerosis

Vitamin D dose N Percent
>5000 IU 447 20.4
2001–5000 IU 734 33.5
1–2000 IU 613 28.0
None 399 18.2