Vitamin A, Vitamin B6, Vitamin C, Iron and Vitamin B12: study protocols
5 study groups took Vitamin A together with Vitamin B6, Vitamin C, Iron and Vitamin B12. These are the doses the studies gave. They are not a recommendation.
Fewer than 5 study groups in one unit match, too few to draw the chart.
Dose per serving from research: Vitamin B6
5 study groups in 5 studies say how much Vitamin B6 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 250 mcg to 500 mcg, 60% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 3 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 2 |
Dose per serving from research: Vitamin C
5 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: 25 mg to 50 mg, 60% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mg to 50 mg | 3 |
| 50 mg to 100 mg | 2 |
Dose per serving from research: Vitamin B12
5 study groups in 5 studies say how much Vitamin B12 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 0.5 mcg to 1 mcg, 60% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 0.5 mcg to 1 mcg | 3 |
| 1 mcg to 2.5 mcg | 0 |
| 2.5 mcg to 5 mcg | 2 |
Commonly used together
5 of 5 study groups took Vitamin A, Vitamin B6, Vitamin C, Iron and Vitamin B12 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 |
| Vitamin E | 5 |
| Zinc | 5 |
| Iodine | 4 |
| Vitamin D | 4 |
| Folic Acid | 3 |
| Niacin | 3 |
| Vitamin K | 3 |
| vitamin B1 | 3 |
| vitamin B2 | 3 |
5 study groups
| Study | |||||||
|---|---|---|---|---|---|---|---|
| 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 | 1 mg | 2.2 mg | 100 mg | — | 2.6 mcg | — | — |
| Effect of micronutrient supplementation on diarrhoeal disease among stunted children in rural South Africa 2009 · multiple micronutrients · children aged 6–24 months; three cohorts: HIV-infected children, HIV-uninfected children born to HIV-infected mothers, and HIV-uninfected children born to HIV-uninfected mothers | 1,250 IU | 500 mcg | 35 mg | 10 mg | 0.9 mcg | 548 days | — |
| Effect on longitudinal growth and anemia of zinc or multiple micronutrients added to vitamin A: a randomized controlled trial in children aged 6-24 months 2010 · Multiple micronutrients · Children enrolled at 6 months and followed to 24 months in rural South Africa; HIV-infected and HIV-uninfected children, both sexes | 1,250 IU | 500 mcg | 35 mg | 10 mg | 0.9 mcg | 548 days | 126 |
| Newborn micronutrient status biomarkers in a cluster-randomized trial of antenatal multiple micronutrient compared with iron folic acid supplementation in rural Bangladesh 2020 · MM · Pregnant women in rural Bangladesh; age range not specified; no disease condition specified | 770 mcg | 1.9 mg | 85 mg | 27 mg | 2.6 mcg | — | 176 |
| Multiple micronutrient supplementation improves micronutrient status in primary school children in Hai Phong City, Vietnam: a randomised controlled trial 2021 · intervention · Children aged 6–9 years, apparently healthy, in rural Hai Phong City, Vietnam; included undernourished, normal-weight, and overweight/obese children | 400 mcg | 500 mcg | 30 mg | 10 mg | 0.9 mcg | 22 weeks | 175 |