Calcium deficiency in pregnant women will affect the healthy growth of the fetus, so it needs to be supplemented reasonably. Calcium supplementation during pregnancy should not exceed 30 weeks at the latest. It is recommended that pregnant women take calcium supplements between 3-7 months of pregnancy, either by taking calcium carbonate tablets or through dietary therapy. Calcium deficiency in pregnant women can cause cramps, loose teeth, painful sensations in the joints and pelvis, and other abnormal manifestations. Once such symptoms are found in pregnant women, they need to take calcium supplements in time. If the situation of calcium deficiency is serious, you can also choose professional calcium supplements for supplementation, and also pay attention to the supplementation of vitamin D in order to promote the absorption of calcium. Slight calcium deficiency can be supplemented through dietary therapy, such as drinking more milk, bone broth and so on. In short, pregnant women calcium deficiency must not be ignored, early detection, reasonable supplementation is very important. Pregnant women in the diet for supplementation at the same time, but also pay attention to more sunshine, you can go out more in good weather, is conducive to calcium supplementation.