Is a pregnant woman with diabetes more likely to give birth to a child with high birth weight?

Yes: Make sure that the diabetes is under good control. Dr thornalley in england has shown that diabetics become short of vitamin b1. All diabetics should be getting this as a supplement in large doses. See a nutritionist familiar with this research.

Usually: The typical diabetic usually has blood sugars above normal.The fetus is exposed to these levels and that causes predictable changes. If control is good and sugar levels normal, the size can be normal. Since the baby makes it's own insulin, it takes all the excess and stores it.Organs are over-sized and fat layers thick.