The balanced and reasonable nutritional supplementation of pregnant women can greatly affect the development of the fetuses during the pregnancy. An important principle of supplementing nutrients is to maintain the adequate and reasonable intake amount. The ration of various nutrients should be balanced. Generally speaking, the essential nutrients include protein, fat, heat, vitamins, mineral substances and trace elements. Protein is mainly provided by the animal foods, and it is the most important composition for the fetuses to form and develop the tissues and organs. Expectant mothers should absorb adequate protein each day. In addition, the diet should not be too oily. The intake of fresh vegetables and fruits should be increased in autumn. In addition, women should often drink water and defecate regularly so as to prevent the constipation. 

In autumn, it is essential for pregnant women to supplement nutrients for themselves. However, the diet should be mild and light. Suitable foods include lotus roots and tremella and so on. The foods like mutton should be avoided. What’s more, pregnant women should maintain the ventilation inside the room and prevent some teratogenic viruses, such as urticaria and cytomegalovirus. Expectant mothers should not supplement a lot of nutrients blindly in autumn, or serious results can be caused.

In autumn, expectant mothers should not eat steamed crabs and soft-shelled turtles. Many people like to eat steamed crabs and soft-shelled turtles in autumn. However, these two kinds of foods are not suitable for pregnant women to eat, as they can invigorate the circulation of the blood and probably cause abortion. In addition, grapes in autumn are also not suitable for expectant mothers to eat excessively. Grapes contain abundant glucose. The excessive intake of glucose can easily cause gestational diabetes or abnormally large fetuses. The gestational diabetes can not only endanger the health of expectant mothers, but also affect the normal growth of the fetuses. What’s more, premature delivery, abortion and stillborn fetuses can also be caused. The fruits are very diverse in autumn. Pregnant women should eat them in a right amount. The morning temperature and evening temperature are both very low, which can decrease the immunity of pregnant women. The excessive intake of fruits can cause diarrhea, stimulate the uterine contraction and even cause abortion.

Therefore, pregnant women must be rather careful when they eat foods in autumn. The supplementation of nutrients must be in a scientific and reasonable way so as to prevent various diseases and incidents.