Can Melatonin Improve the Osteopenia of Perimenopausal and Postmenopausal Women? A Meta-Analysis

Table 3

Oral supplement composition.

Study	Intervention		Medicine preparation
	Trial group	Control group
Amstrup 2015 [26, 27]	Melatonin 1 or 3 mg+ Calcium 800 mg+ Vit D3 20 μg	Placebo+ Calcium 800 mg+ Vit D3 20 μg	Skanderborg Pharmacy (Denmark)
Kotlarczyk 2012 [15]	Melatonin 3 mg	Placebo (Lactose)	Avalon Pharmacy (Avalon, PA, USA)
Maria 2017 [28]	Melatonin 5 mg+ Strontium (citrate) 450 mg+ Vitamin D3 2000 IU+ Vitamin K2 60μg	Placebo	Pure Encapsulations, Inc. (Sudbury, MA, USA).