Efficacy of Myo-inositol in Preventing Gestational Diabetes in High-risk Pregnant Women

Inclusion Criteria: 60 women in their first trimester of pregnancy affected by one or more of the following risk factors: * Glycemia levels \> 92 mg/dl * BMI \> 30 * At least a parent or a brother (or sister)affected by diabetes * Pre-existing pregnancy with gestational diabetes Exclusion Criteria: * Pregnant women affected by pregestational diabetes * Twin pregnancy * Patients affected by pre-existing diseases in pregnancy (diabetes excluded) * Patients affected by chronic disorders