Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,615 questions · 1,673 findings · 190 reviews · Headline outcomes only

No studies found 278 · 16.6%GRADE not reported 85 · 5.1%Very low 328 · 19.6%Low 460 · 27.5%Moderate 402 · 24%High 120 · 7.2%

Wheat flour fortified with iron in combination with other micronutrients vs unfortified wheat flour (no micronutrients added)

Infection or inflammation at individual level (as measured by urinary neopterin, C‐reactive protein or alpha‐1‐acid glycoprotein variant A) · general population of all age groups (including pregnant women) from any country, over two years of age
1 finding from 1 review

iron‐fortified wheat flour with or without other micronutrients added vs fortified wheat flour with same micronutrients (but not iron)

Infection or inflammation at individual level as measured by C‐reactive protein (CRP) (only in children 2 to 11 years of age) · general population of all age groups (including pregnant women) from any country, over two years of age
1 finding from 1 review