Iron, Selenium, Vitamin C, Vitamin D and Riboflavin: study protocols
7 study groups took Iron together with Selenium, Vitamin C, Vitamin D and Riboflavin. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Iron
7 study groups in 5 studies say how much Iron participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mg to 10 mg and 25 mg to 50 mg and 50 mg to 100 mg, 29% of 7 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 2 |
| 50 mg to 100 mg | 2 |
Dose per serving from research: Selenium
7 study groups in 5 studies say how much Selenium participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mcg to 10 mcg and 50 mcg to 100 mcg and 100 mcg to 250 mcg, 29% of 7 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mcg to 10 mcg | 2 |
| 10 mcg to 25 mcg | 0 |
| 25 mcg to 50 mcg | 1 |
| 50 mcg to 100 mcg | 2 |
| 100 mcg to 250 mcg | 2 |
Dose per serving from research: Vitamin C
7 study groups in 5 studies say how much Vitamin C participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mg to 10 mg and 50 mg to 100 mg and 100 mg to 250 mg, 29% of 7 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 0 |
| 25 mg to 50 mg | 1 |
| 50 mg to 100 mg | 2 |
| 100 mg to 250 mg | 2 |
Dose per serving from research: Vitamin D
6 study groups in 4 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 50 IU to 100 IU and 100 IU to 250 IU and 250 IU to 500 IU, 33% of 6 study groups each.
| Daily dose | Study groups |
|---|---|
| 50 IU to 100 IU | 2 |
| 100 IU to 250 IU | 2 |
| 250 IU to 500 IU | 2 |
Dose per serving from research: Riboflavin
7 study groups in 5 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, 43% of 7 study groups.
| Daily dose | Study 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 | 3 |
| 2.5 mg to 5 mg | 2 |
Commonly used together
7 of 7 study groups took Iron, Selenium, Vitamin C, Vitamin D 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 | 7 |
| Iodine | 7 |
| Niacin | 7 |
| Vitamin A | 7 |
| Vitamin E | 7 |
| Zinc | 7 |
| Folic Acid | 6 |
| Vitamin B12 | 5 |
| Vitamin B6 | 5 |
| Thiamine | 3 |
7 study groups
| Study | |||||||
|---|---|---|---|---|---|---|---|
| Effects of multimicronutrient supplementation on helminth reinfection: a randomized, controlled trial in Kenyan schoolchildren 2003 · multimicronutrient supplementation · Schoolchildren in Nyanza Province, Kenya; age and sex not specified | 18 mg | 40 mcg | 50 mg | 5 mcg | 1.6 mg | 335 days | — |
| 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 | 9.29 mcg | 10 mg | 85.7 IU | 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 | 65 mcg | 70 mg | 200 IU | 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 | 65 mcg | 70 mg | 200 IU | 1.4 mg | 180 days | 515 |
| Impact of Preconception Micronutrient Supplementation on Anemia and Iron Status during Pregnancy and Postpartum: A Randomized Controlled Trial in Rural Vietnam 2016 · Multiple micronutrients (MM) · Women aged 18–40 planning pregnancy in rural Vietnam; no specific diagnosed condition required | 8.57 mg | 9.29 mcg | 10 mg | 85.7 IU | 200 mcg | 56 weeks | 508 |
| 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 | 130 mcg | 140 mg | 400 IU | 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 | 130 mcg | 140 mg | 400 IU | 2.8 mg | 184 days | 75 |