In general, drinking tea when taking calcium tablets will not lead to adverse reactions, but may not be conducive to the absorption of calcium tablets, so it is not recommended to drink tea when taking calcium tablets. However, tea also contains a large amount of tannic acid, and after using calcium tablets, tannic acid will lead to calcium precipitation in calcium tablets, and then the calcium tablets in the body can not play a role in the effect, but also not conducive to be absorbed by the body, so it is generally not recommended to drink tea when using calcium tablets, especially strong tea. Tea contains a large number of tea polyphenols, caffeine and other components, these two types of components can stimulate the cardiovascular system and the cerebral cortex, increase the amount of cardiac output, which in turn helps to improve the body’s excitability and improve the mental state.