Nutritional habits that support a healthy pregnancy include consuming a balanced diet rich in essential nutrients. Key components are folic acid, found in leafy greens and legumes, which is crucial for preventing neural tube defects. Adequate intake of iron and calcium is vital for the mother's health and the baby's bone development. Women should also focus on hydration and avoid harmful substances, such as alcohol and excessive caffeine, to ensure a healthy fetal environment. Regular, nutritious meals encourage optimal growth and development during pregnancy.