Calcium, iron and zinc deficiency in pregnant women can be supplemented by diet and medication. 1. Diet: If the lack of calcium, iron and zinc is not serious, the preferred dietary program to improve the conditioning, it is recommended to eat more beans, vegetables and fruits, such as fish, beef (red meat), milk, eggs, etc., which contain calcium, iron, zinc, not serious vitamin deficiencies, can be supplemented through the diet. 2. Drugs to improve: such as calcium, iron and zinc deficiency is relatively serious or dietary modification effect is not good, then under the guidance of the doctor to take targeted drugs for treatment, the more commonly used on the clinical zinc, iron and calcium oral solution, can be supplemented at the same time the three different elements, while the need to maintain a balanced nutritional diet. The lack of calcium, iron and zinc may affect the development of the fetus, so we need to pay attention to, and actively supplement.