A study that appeared in the Archives of Disease showed that British children who took supplemental vitamin D3 were 30% less likely to develop type 1 diabetes than those who did not. The higher the dose, the lower the likelihood of developing the disease.
The British Government recommends vitamin D supplementation for at least the first 2-5 years of a child's life.
Bonnie - of course this makes sense in a climate like the United Kingdom, where sunshine exposure is scarce. The obvious choice for vitamin D in children is Cod Liver Oil. The mechanism to which vitamin D promotes healthy blood sugar and insulin levels is in its kinase-harmonizing and anti-inflammatory action. Diabetes is an inflammatory disease.