[Objective] To investigate the main reasons for different calcium intake of aduh with different age, gender, and areas in Chang- sha. [Method] A total of 405 participants more than 20 years old and living in different areas in Changsha were randomly chosen to answer the questionnaires. [Result] The ratio of people surveyed who occasionally, frequently, and never intake calcium consciously were 32% , 25% and 43% , respectively, and women were found to be more concerned about calcium intake than men. The ratio of frequent calcium intake was found the highest in the officials and teachers, while ...