Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews · Public Health

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 1 · 50%Low 0 · 0%Moderate 1 · 50%High 0 · 0%

Staple food fortified with vitamin A plus other micronutrients vs no intervention

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

It is very uncertain whether staple food fortified with vitamin A plus other micronutrients changes subclinical vitamin A deficiency (serum/plasma retinol 0.70 μmol/L… compared with no intervention (very low certainty).

1 finding from 1 review

Fortification of staple foods with vitamin A for vitamin A deficiency 2019 · Cochrane Headline outcomes only
RR 0.71 [0.52, 0.98]
2 studies · 318 participants
Very low

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