All Iron study protocols

Iron, Vitamin E, Folic Acid, Zinc and Riboflavin: study protocols

5 study groups took Iron together with Vitamin E, Folic Acid, Zinc and Riboflavin. These are the doses the studies gave. They are not a recommendation.

Iron: what the research found →

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: 25 mg to 50 mg and 50 mg to 100 mg, 40% of 5 study groups each.

Daily dose	Study groups
10 mg or less	1
10 mg to 25 mg	0
25 mg to 50 mg	2
50 mg to 100 mg	2

Dose per serving from research: Vitamin E

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

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

Most common: 5 mg to 10 mg and 10 mg to 25 mg, 40% of 5 study groups each.

Daily dose	Study groups
2.5 mg or less	1
2.5 mg to 5 mg	0
5 mg to 10 mg	2
10 mg to 25 mg	2

Dose per serving from research: Folic Acid

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

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

Most common: 250 mcg to 500 mcg, 100% of 5 study groups.

Daily dose	Study groups
250 mcg to 500 mcg	5

Dose per serving from research: Zinc

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

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

Most common: 10 mg to 25 mg and 25 mg to 50 mg, 40% of 5 study groups each.

Daily dose	Study groups
2.5 mg or less	1
2.5 mg to 5 mg	0
5 mg to 10 mg	0
10 mg to 25 mg	2
25 mg to 50 mg	2

Dose per serving from research: Riboflavin

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

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

Most common: 1 mg to 2.5 mg and 2.5 mg to 5 mg, 40% of 5 study groups each.

Daily dose	Study groups
250 mcg or less	1
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 5 study groups took Iron, Vitamin E, Folic Acid, Zinc and Riboflavin with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken with	Study groups
Copper	5
Iodine	5
Niacin	5
Selenium	5
Vitamin A	5
Vitamin C	5
Vitamin D	5

5 study groups

Study
Predictors of adherence to micronutrient supplementation before and during pregnancy in Vietnam 2017 · MM (multiple micronutrients) preconception group · Women of reproductive age in Vietnam intending to become pregnant	8.57 mg	1.43 mg	400 mcg	2.14 mg	200 mcg	54 weeks	1,469
Assessing the adherence and acceptability to iron and folic acid compared with multiple micronutrient supplements during pregnancy: a cluster-randomized noninferiority trial in Cambodia 2025 · MMS-180 · Healthy pregnant individuals aged 18–45 years, in the first 14 weeks of a low-risk singleton pregnancy	30 mg	10 mg	400 mcg	15 mg	1.4 mg	180 days	516
Assessing the adherence and acceptability to iron and folic acid compared with multiple micronutrient supplements during pregnancy: a cluster-randomized noninferiority trial in Cambodia 2025 · MMS-90 · Healthy pregnant individuals aged 18–45 years, in the first 14 weeks of a low-risk singleton pregnancy	30 mg	10 mg	400 mcg	15 mg	1.4 mg	180 days	515
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	60 mg	20 mg	400 mcg	30 mg	2.8 mg	184 days	75
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	60 mg	20 mg	400 mcg	30 mg	2.8 mg	184 days	75