The eligibility criteria are:  Criteria for children with T1DM:  Inclusion criteria for children with T1DM:  Children (4-14 years of age) of both genders, with a T1DM. Not on vitamin D Supplementation. Exclusion criteria for children with T1DM Age ≤ 4 or more than14 years old Patients with T2DM Children had received vitamin D supplements