Findings

What do systematic reviews say?

6 questions · 6 findings · 1 reviews

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No studies found 4 · 66.7%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 16.7%Moderate 1 · 16.7%High 0 · 0%

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

Any adverse effects (e.g. hypervitaminosis A, as defined by the trialists) · general population over 2 years of age

The review found no eligible studies for this question.

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

Subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L or less) · general population over 2 years of age

Staple foods fortified with vitamin A plus other micronutrients probably leads to lower subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L… compared with same unfortified staple foods (moderate certainty).

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
RR 0.27 [0.16, 0.49]
3 studies · 923 participants
Moderate

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

Clinical vitamin A deficiency (as defined by night blindness) · general population over 2 years of age

The review found no eligible studies for this question.

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

All‐cause mortality · general population over 2 years of age

The review found no eligible studies for this question.

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

All‐cause morbidity · general population over 2 years of age

The review found no eligible studies for this question.

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Staple food fortified with vitamin A plus other micronutrients vs same unfortified staple foods

Serum/plasma retinol (μmol/L) · general population over 2 years of age

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 1009 participants
Low