Your own need for protein increases during pregnancy too, with a healthy intake needed to support the various changes your body is going through. A healthy intake of protein during pregnancy supports your baby's growth and helps their rapidly multiplying cells to function normally.
Balanced protein energy supplementation (up to 20% of energy as protein) provided during pregnancy appears to improve fetal growth and increases infants' birth weight. ... However, balanced protein energy supplementation has not been shown to improve fetal growth in some studies
During pregnancy, you need to consume extra protein and calcium to meet the needs of the growing fetus ( 7 , 8 ). Dairy products contain two types of high-quality protein: casein and whey. Dairy is the best dietary source of calcium, and provides high amounts of phosphorus, various B vitamins, magnesium and zinc.