Insulin is a component present in breast milk that helps to lower the risk for Diabetes Mellitus Type I among breastfed infants. A small quantity of insulin is absorbed orally which is a factor that promotes maturation of the intestine, induces glucose tolerance and prevents development of Diabetes type 1. Insulin requirements decrease about 25% after birth in diabetic mothers who breastfeed their babies. Those mothers are in need of higher self-control of disease, and, higher caloric intake is required (500 to 800 kcal/day). Attachment and nursing should be started as soon as possible since second stage of Lactogenesis may be delayed in diabetic mothers. Diabetic mothers who breastfeed would attain a better metabolic control of the disease while breastfeeding.