How can pregnant women prevent malnutrition? 1. Ensure sufficient protein. Expectant mothers must ensure adequate protein intake during pregnancy. The daily supplementary intake is about 2100 kcal in the first trimester, about 2300 kcal in the second trimester, and can be maintained at 2300 kcal per day in the third trimester. ~2400 kcal is appropriate. Expectant mothers can also eat more eggs, eggs…