Four months of pregnancy should pay attention to a healthy diet. Four months of pregnancy is an important stage in the development of fetal organs. At this time, pregnant women need to pay more attention to their own dietary health. A good nutritional mix can not only promote the healthy growth of the baby, but also avoid the adverse consequences of malnutrition in pregnant women. However, what should pregnant women pay attention to and how can they get the correct nutrition? The following will elaborate on it from several aspects. 1. Increase the intake of protein, iron and calcium