Table 3.

Summary of studies reporting the effects of Mg on subjective anxiety/stress in postpartum women.

Author	Study Design	Condition	Sample (N)	Sex	Age (year)	Treatment (s)	Control	Duration	Outcome Measure	Results	Effect Summary
Fard et al. [68]	RCT	Postpartum ≤48 h	N = 95 (Treatments: (i) n = 31; (ii) n = 31; Placebo: n = 33;	F	Treatments: (i) x = 29.4 (SD = 5.4); (ii) x = 26.4 (SD = 4.8); Placebo x = 27.6 (SD = 5.1)	(i) Zinc sulphate 27 mg (11 mg elemental zinc); (ii) Mg sulphate 320 mg (64.6 elemental Mg)	Placebo (lactose, starch, cellulose, Mg stearate)	8 weeks	Spielberger State-Trait Anxiety Inventory	No significant differences between treatments	x

Mg—Magnesium; mg—milligrams; + positive treatment effect; − negative treatment effect; x no treatment effect; RCT—randomised controlled trial.