Does Vitamin D Improve Glycemic Control in Type II DM?

Inclusion Criteria: * Type II diabetics living in Riyadh area who consume no more than one serving of milk/day * Do not take vitamin supplement * Habitually have less than 10 hour of sun exposure per week * Don't suffer from granulomatous conditions, liver disease, or kidney disease * Don't take anticonvulsants, barbiturates, or steroids. * Stable glycemic control (not more than 0.5% difference between current HA1c and a HA1c obtained 2-4 months earlier) * Current HA1c between 6.5 and 8%, and current total 25 OH vitamin D level between 10-30 nmol/L.