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Evidence found and GRADE certainty

8 questions · 8 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 6 · 75%Low 2 · 25%Moderate 0 · 0%High 0 · 0%

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Neural tube defects (All) · health: non‐randomised studies

It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes neural tube defects (spina bifida, encephalocoele, anencephaly‐fatal… compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).

1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Spina bifida · health: non‐randomised studies

It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes spina bifida compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).

1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Encephalocoele · health: non‐randomised studies

It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes encephalocoele compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).

1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Fatal anencephaly · health: non‐randomised studies

It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes fatal anencephaly compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).

1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Folate concentration Serum folate levels, measured between 6 and 12 months after entry to the study · health: non‐randomised studies
1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Anaemia · health: non‐randomised studies

It is very uncertain whether wheat flour or wheat flour products fortified with folic acid plus… changes anaemia compared with unfortified wheat flours or wheat flour products (not containing… (very low certainty).

1 finding from 1 review

Wheat flour or wheat flour products fortified with folic acid plus other vitamins and minerals vs unfortified wheat flours or wheat flour products (not containing folic acid nor any other vitamins and minerals)

Anaemia · health outcomes

Wheat flour or wheat flour products fortified with folic acid plus… showed no clear difference in anaemia compared with unfortified wheat flours or wheat flour products (not containing… (low certainty).

1 finding from 1 review