ChiCTR‐TRC‐12002806.

Study name	The preventive effect of calcium supplementation on the incidence of chronic non‐communicable diseases in healthy women
Methods	Randomised controlled parallel‐group trial
Participants	Females, in good general health, premenopausal women aged 30‐40 y and postmenopausal women aged 50‐60 years
Interventions	Calcium supplementation: supplemented with 600 mg calcium per day; placebo group: placebo
Outcomes	Blood glucose; blood lipids; BMI; intima‐media thickness of carotid; blood pressure
Starting date	01/07/2008
Contact information	Lixin Na, nalixin2003@163.com 157 Baojian Road, Nangang District, Harbin Harbin Medical University
Notes	http://www.chictr.org.cn/showprojen.aspx?proj=6748