1. Zinc supplement schedule and duration.

Study	Supplement		Schedule	Duration	Surveillance
	Zinc	Control
Bhandari 2002	Zinc gluconate 10 mg	Both groups vitamin A	Daily	4 months	Once weekly
Bobat 2005	Zinc sulphate 10 mg	Placebo	Daily	6 months	Every 2 weeks
Brooks 2005	Zinc acetate 35 mg to infants 70 mg to children aged > 12 months	Placebo	Weekly	12 months	Once weekly
Luabeya 2007	Zinc gluconate 10 mg	Both groups vitamin A	Daily	(Continued until 24 months of age)	Once weekly
Penny 2004	Zinc gluconate 10 mg	Placebo	Daily	6 months	Once weekly
Sazawal 1998	Zinc gluconate 10 mg	Placebo	Daily	4 months	Every 5th day