Vitamin D deficiency not tied to advance of type 1 diabetes

The German study showed that in 108 children with multiple islet autoantibodies, 40% were vitamin D deficient, and 51% of the 244 children with type 1 diabetes were vitamin D deficient, compared with only 28% of the 406 autoantibody-negative children.

The differences in vitamin D deficiency were most noticeable in summer.

However, the incidence of type 1 diabetes after 10 years was similar in each group and there was no association between vitamin D levels or vitamin D deficiency and progression to type 1 diabetes.