Protein provides amino acids for building cells and should be consumed in moderate amounts daily, with emphasis on lean sources. During pregnancy, adequate nutrition is important for fetal development, including sufficient calories, protein, fat (especially DHA/EPA), carbohydrates, vitamins and minerals. Common concerns like weight gain, food aversions, heartburn and constipation can be managed through dietary and lifestyle strategies. Proper nutrition continues to be important during breastfeeding and postpartum recovery.