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All Zinc study protocols

Zinc, Iron and Riboflavin: study protocols

7 study groups took Zinc together with Iron and Riboflavin. These are the doses the studies gave. They are not a recommendation.

Zinc: what the research found →

Dose per serving from research: Zinc

7 study groups in 5 studies say how much Zinc participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 2.5 mg to 5 mg and 25 mg to 50 mg, 43% of 7 study groups each.

Daily doseStudy groups
2.5 mg to 5 mg
3
5 mg to 10 mg
1
10 mg to 25 mg
0
25 mg to 50 mg
3

Dose per serving from research: Iron

5 study groups in 3 studies say how much Iron participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 2.5 mg to 5 mg and 50 mg to 100 mg, 40% of 5 study groups each.

Daily doseStudy groups
2.5 mg to 5 mg
2
5 mg to 10 mg
0
10 mg to 25 mg
1
25 mg to 50 mg
0
50 mg to 100 mg
2

Dose per serving from research: Riboflavin

6 study groups in 4 studies say how much Riboflavin participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mcg to 250 mcg and 1 mg to 2.5 mg and 2.5 mg to 5 mg, 33% of 6 study groups each.

Daily doseStudy groups
100 mcg to 250 mcg
2
250 mcg to 500 mcg
0
500 mcg to 1 mg
0
1 mg to 2.5 mg
2
2.5 mg to 5 mg
2

Commonly used together

5 of 7 study groups took Zinc, Iron and Riboflavin with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Folic Acid
4
Vitamin D
4

7 study groups

Study
Simultaneous weekly supplementation of iron and zinc is associated with lower morbidity due to diarrhea and acute lower respiratory infection in Bangladeshi infants
2003 · 20 mg iron and 20 mg zinc with 1 mg riboflavin · Infants aged 6 months at enrollment, followed until 12 months
2.86 mg2.86 mg143 mcg183 days—
Simultaneous weekly supplementation of iron and zinc is associated with lower morbidity due to diarrhea and acute lower respiratory infection in Bangladeshi infants
2003 · Micronutrient mix (MM) · Infants aged 6 months at enrollment, followed until 12 months
2.86 mg2.86 mg143 mcg183 days—
Zinc supplementation in infants born small for gestational age reduces mortality: a prospective, randomized, controlled trial
2001 · riboflavin, zinc, calcium, phosphorus, folate, and iron · Full-term infants born small for gestational age, treated from 30 to 284 days of age
5 mg——254 days—
Effects of maternal micronutrient supplementation on fetal loss and infant mortality: a cluster-randomized trial in Nepal
2003 · Multiple micronutrients · Pregnant women in rural Nepal
30 mg—1.8 mg——
Maternal B-vitamin and vitamin D status before, during, and after pregnancy and the influence of supplementation preconception and during pregnancy: Prespecified secondary analysis of the NiPPeR double-blind randomized controlled trial
2023 · intervention · Women planning pregnancy; generally healthy, recruited before conception
10 mg12 mg1.8 mg—870
mRNA Levels of Placental Iron and Zinc Transporter Genes Are Upregulated in Gambian Women with Low Iron and Zinc Status
2017 · MMN group · Pregnant women aged 18–45 years with singleton pregnancies under 20 weeks in rural Gambia
30 mg60 mg2.8 mg184 days75
mRNA Levels of Placental Iron and Zinc Transporter Genes Are Upregulated in Gambian Women with Low Iron and Zinc Status
2017 · PE+MMN group · Pregnant women aged 18–45 years with singleton pregnancies under 20 weeks in rural Gambia
30 mg60 mg2.8 mg184 days75