How do you prevent gestational diabetes?

The best prevention for gestational diabetes is a healthy lifestyle and a normal weight, normal blood pressure, and normal blood glucose levels before becoming pregnant.

Women who are more likely to develop gestational diabetes while pregnant have high blood pressure, high blood glucose levels (but not high enough to be diabetes), and were overweight before becoming pregnant. Also, women who were diagnosed with gestational diabetes during a previous pregnancy are more likely to develop it if they become pregnant again.