What do systematic reviews say?

Intermittent vs any daily iron supplementation

• 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

Intermittent use of iron supplements vs placebo or no intervention

• 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

Intermittent use of iron supplements vs any daily iron supplementation

• Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Intermittent iron supplementation (alone or with any other micronutrients) vs no supplementation or placebo

Intermittent iron supplementation (alone or with any other… showed no clear difference in iron deficiency anaemia (as defined by the presence of anaemia plus… compared with no supplementation or placebo (low certainty).

• Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult… 2019 · Cochrane Headline outcomes only
  RR 0.07 [0, 1.16]
  1 study · 97 participants
  Low