Diarrhea prevalence on days 3 , 5 , and 7 was lower in the zinc group .
The incidence of vomiting was significantly greater in the group that received zinc than in the control group .
CONCLUSIONS Oral zinc supplementation significantly decreases diarrhea duration and has a greater effect on malnourished children .
OBJECTIVE To up date the available evidence about zinc use for treating diarrhea in children and to assess its effect on the malnourished population , a subgroup that has not been fully explored in previous analyses .
Therapeutic Zinc and Copper Supplementation in Acute Diarrhea Does Not Influence Short-Term Morbidity and Growth: Double-Blind Randomized Controlled Trial
Our objective was to evaluate the effect of zinc and copper supplementation in  acute diarrhea  on morbidity and growth during 12 weeks of follow-up . In a double-blind r and omized controlled clinical trial of 724 children aged 6–59 months , none of the 11 evaluated outcomes showed significant association with zinc or zinc and copper supplementation . Thus , therapeutic zinc supplementation may not always yield short-term benefits
Diarrhea prevalence on days 3 , 5 , and 7 was lower in the zinc group .
The incidence of vomiting was significantly greater in the group that received zinc than in the control group .
CONCLUSIONS Oral zinc supplementation significantly decreases diarrhea duration and has a greater effect on malnourished children .
OBJECTIVE To up date the available evidence about zinc use for treating diarrhea in children and to assess its effect on the malnourished population , a subgroup that has not been fully explored in previous analyses .