There is no best and fastest calcium supplements for pregnant women, but calcium supplements for pregnant women can be taken by consuming more calcium-rich foods in moderation and applying calcium tablets. It is usually recommended that pregnant women start supplementing calcium from mid-pregnancy, and can consume more calcium-rich foods in moderation, such as nuts, shrimp, tofu, dairy products, and so on. At the same time, attention should be paid to more sunshine, which is conducive to the synthesis of vitamin D in the body, and is conducive to the absorption of calcium. Calcium supplement for pregnant women is recommended to choose calcium tablets containing vitamin D, mainly because the body’s absorption of calcium is often dependent on vitamin D, vitamin D, if the lack of will reduce the rate of calcium absorption. Therefore, pregnant women who choose calcium supplements containing vitamin D calcium tablets can usually achieve better results. It should be noted that pregnant women are not the more calcium the better, it is recommended by the doctor’s guidance to do scientific and reasonable calcium supplementation.