What do systematic reviews say?

Intervention not reported

The intervention showed no clear difference in adverse effects: diarrhoea 48 to 72 hours (low certainty).

• Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age 2016 · Cochrane Headline outcomes only
  RR 1.07 [0.82, 1.4]
  3 studies · 2176 participants
  Low