Irct2014021116555N.

Study name	Comparison of the effects of calcium, vitamin D, and calcium plus vitamin D on anthropometric indices, body composition, lipid profile, blood pressure, and blood glucose in overweight or obese premenopausal women
Methods	Randomised controlled trial
Participants	Premenopausal women; aged between 20‐50 years; BMI between 25‐40 kg/m2; not having any cancer or severe endocrine, mental, hepatic, renal, gastrointestinal, cardiovascular, neurologic, rheumatologic, haematologic, skeletal, and eating disorders; not taking any medication, nutritional supplements, or herbal preparations that could affect calcium and vitamin D status, anthropometric indices, body composition, lipid profile, blood pressure, and blood glucose during the last 12 weeks; not having any history of drug intolerance or adverse reaction to the study supplements; dairy product consumption of 3 servings/d; consumption of 5 cups of coffee/d; not being pregnant or lactating; not being a smoker or taking alcohol; not being a participant in other trials over the last 6 months; stable body weight (body weight change <3 kg for 3 months before intervention); providing written informed consent Exclusion criteria: development of serious adverse events
Interventions	Intervention 1: 2 tablets of placebo with low calorie diet Intervention 2: 2 tablets of calcium (500 mg calcium carbonate/tablet) with low calorie diet Intervention 3: 2 tablets of calcium plus vitamin D (500 mg calcium carbonate and 200 IU vitamin D/tablet) with low calorie diet Intervention 4: 2 tablets of vitamin D (200 IU vitamin D/tablet) with low calorie diet Placebo treatment
Outcomes	Blood glucose Blood pressure Body fat mass Body mass index(BMI)  lipid profile Waist circumference
Starting date	18/05/2014
Contact information	Hamide Rajaie, School of Nutrition and Food Science Shiraz, Iran
Notes	http://www.who.int/trialsearch/Trial2.aspx?TrialID=IRCT2014021116555N1