The main reason why calcium supplements can cause constipation is that the combination of calcium powder in the intestine and insoluble substances in the stool makes the stool dry. When patients become constipated, they should eat more vegetables and fruits, which contain a lot of fiber and are the main cause of stool formation. Fruits such as apples and pears contain a lot of fiber, which can promote intestinal peristalsis and facilitate defecation. In addition, patients should eat more coarse grains, such as corn, sweet potatoes, etc. can be. Constipation patients should drink more water, because the main component of intestinal fluid is water, only when patients drink enough water, intestinal fluid in the intestine is sufficient, although and calcium combined with insoluble substances in the stool will make the stool harden, but there is a sufficient amount of intestinal fluid, but also conducive to defecation.