Figure 2. Bar graph illustrating the qualitative distribution of 25 (OH) Vitamin D status in the MS group (n=108) and controls (n=210). Normal value (> 75 nmol/L);<br>Insufficiency (vitamin D level < 75 nmol/L); Deficiency (vitamin D level < 50 nmol/L) or Severe deficiency (<25 nmol/L).