Findings

What do systematic reviews say?

5 questions · 5 findings · 5 reviews · Developmental, Psychosocial and Learning Problems

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No studies found 1 · 20%GRADE not reported 2 · 40%Very low 0 · 0%Low 1 · 20%Moderate 0 · 0%High 1 · 20%

Vitamin A vs placebo or usual care

All‐cause mortality · children aged between 6 months and 5 years

Vitamin A supplementation leads to lower all‐cause mortality compared with placebo or usual care (high certainty).

1 finding from 1 review

Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age 2022 · Cochrane Headline outcomes only
RR 0.88 [0.83, 0.93]
19 studies · 1202382 participants
High

Folic acid supplements alone vs placebo

All‐cause mortality · adult men and women who had been exposed to arsenic‐containing drinking water

1 finding from 1 review

Provision of folic acid for reducing arsenic toxicity in arsenic‐exposed children and adults 2021 · Cochrane Headline outcomes only
no estimate extracted
0 studies · 0 participants
GRADE not reported

Home (point‐of‐use) fortification of foods with multiple micronutrient powders vs placebo or no intervention

All‐cause mortality · children aged 6 to 23 months

The review found no eligible studies for this question.

1 finding from 1 review

Home fortification of foods with multiple micronutrient powders for health and nutrition in children under two years… 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Intermittent use of iron supplements vs placebo or no intervention

All‐cause mortality · children under 12 years of age

1 finding from 1 review

Intermittent iron supplementation for improving nutrition and development in children under 12 years of age 2011 · Cochrane Headline outcomes only
no estimate extracted
0 studies · 0 participants
GRADE not reported

Home (point‐of‐use) fortification of foods with multiple micronutrient powders vs placebo or no intervention

All‐cause mortality (number of deaths during trial) · preschool and school‐age children

1 finding from 1 review

Point‐of‐use fortification of foods with micronutrient powders containing iron in children of preschool and school‐age 2017 · Cochrane Headline outcomes only
no estimate extracted
1 study · 115 participants
Low