Intervention not reported
Micronutrient deficiencies · General population
It is very uncertain whether the intervention changes micronutrient deficiencies (very low certainty).
1 finding from 1 review
Intervention not reported
Anthropometric outcomes · General population
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Anaemia · general population older than 2 years of age (including pregnant women), in Kenya and Mexico
It is very uncertain whether provision of maize flour or maize flour products fortified with iron… changes anaemia (defined as haemoglobin (Hb) below WHO cut‐off, adjusted for… compared with unfortified maize flours or maize flour products (very low certainty).
1 finding from 1 review
Iron deficiency (as defined by study authors, based on a biomarker of iron status) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico
It is very uncertain whether provision of maize flour or maize flour products fortified with iron… changes iron deficiency (as defined by trialists, based on a biomarker of… compared with unfortified maize flours or maize flour products (very low certainty).
1 finding from 1 review
Haemoglobin (g/dL) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico
1 finding from 1 review
Ferritin (µg/L) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico
1 finding from 1 review
Any adverse effects (including constipation, nausea, vomiting, heartburn or diarrhoea, as measured by trialists) · general population older than 2 years of age (including pregnant women), in Kenya and Mexico
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Serum or plasma zinc (in µmol/L) · general population of all age groups (including pregnant women) from any country, over two years of age
1 finding from 1 review
Stunting · general population of all age groups (including pregnant women) from any country, over two years of age
Foods fortified with zinc alone showed no clear difference in stunting (author defined) compared with same foods without adding zinc (low certainty).
1 finding from 1 review
Underweight · general population of all age groups (including pregnant women) from any country, over two years of age
Foods fortified with zinc alone showed no clear difference in underweight (author defined) compared with same foods without adding zinc (low certainty).
1 finding from 1 review
Zinc deficiency (as defined by authors, depending on age and gender) · general population of all age groups (including pregnant women) from any country, over two years of age
It is very uncertain whether foods fortified with zinc plus other micronutrients changes zinc deficiency (as defined by authors, depending on age and gender) compared with foods fortified with other micronutrients without zinc (very low certainty).
1 finding from 1 review
Serum or plasma zinc (in µmol/L) · general population of all age groups (including pregnant women) from any country, over two years of age
1 finding from 1 review
Anaemia · population aged 2 years and above (Ballot 1989a (C) ‐ > 10 years, Chen 2005 (C) ‐ >3 years; Huo 2002 ‐ 11‐17 years, Longfils 2008‐ 6‐21…
It is very uncertain whether condiments/seasonings fortified with iron changes anaemia (defined as haemoglobin below WHO cut‐off for age and… compared with unfortified condiments/seasonings (very low certainty).
1 finding from 1 review
Iron deficiency (as defined by study authors, based on a biomarker of iron status) · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
Condiments/seasonings fortified with iron plus other micronutrients may leads to lower iron deficiency (as defined by the trialists based on a biomarker of… compared with condiments/seasonings fortified with other micronutrients except iron (low certainty).
1 finding from 1 review
Ferritin (µg/L) · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review
Transferrin saturation · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review
Total iron binding capacity · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review
Adverse effects · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review
Haemoglobin (g/dL) · population aged 2 years and above (Ballot 1989a (C) ‐ > 10 years, Chen 2005 (C) ‐ >3 years; Huo 2002 ‐ 11‐17 years, Longfils 2008‐ 6‐21…
1 finding from 1 review
Iron deficiency (as defined by study authors, based on a biomarker of iron status) · population aged 2 years and above (Ballot 1989a (C) ‐ > 10 years, Chen 2005 (C) ‐ >3 years; Huo 2002 ‐ 11‐17 years, Longfils 2008‐ 6‐21…
Condiments/seasonings fortified with iron showed no clear difference in iron deficiency (as defined by the trialists based on a biomarker of… compared with unfortified condiments/seasonings (moderate certainty).
1 finding from 1 review