Calcium supplements, milk and seafood can be taken during pregnancy to help replenish calcium. 1. Calcium: Pregnant women need to pay attention to strengthening the intake of calcium in the diet when they reach the middle and late stages of pregnancy, because the growth and development of the fetus requires a large amount of calcium. 80% of this calcium is accumulated during the last trimester of pregnancy. In late pregnancy if the pregnant woman through the food intake of calcium is insufficient can be supplemented with calcium supplements, such as calcium carbonate, etc., but must be taken under the guidance of a doctor to avoid excessive calcium supplementation. 2. Milk: pregnant women should drink more milk during pregnancy, milk contains certain calcium components, can help pregnant women calcium. 3. Seafood: Seafood such as shrimp, seaweed, fish, etc. contain a lot of calcium, through the consumption of seafood can help supplement calcium. Pregnant women during pregnancy should pay attention to more nutrition, pay attention to the balanced diet, but also pay attention to the appropriate sunshine to help supplement vitamin D, in order to promote the absorption of calcium. If you experience leg cramps during pregnancy, seek medical attention as soon as possible.