We need more water when we take calcium tablets, and at the same time you can take some honey water, because honey water contains fructose, which can play a role in softening the stool, which can reduce the constipation caused by calcium tablets. Calcium tablets are mainly taken orally into the gastrointestinal tract, the absorption efficiency is often relatively low, most of the calcium will be discharged from the body through the form of feces, but in the process of discharging from the body, the calcium will be combined with the intestinal food debris, the formation of insoluble, harder substances, so taking calcium tablets are prone to cause constipation.