Folic Acid, Vitamin B6, Riboflavin, Thiamine and Vitamin A: study protocols
6 study groups took Folic Acid together with Vitamin B6, Riboflavin, Thiamine and Vitamin A. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
6 study groups in 6 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, 67% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 1 |
| 250 mcg to 500 mcg | 4 |
| 500 mcg to 1 mg | 1 |
Dose per serving from research: Vitamin B6
6 study groups in 6 studies say how much Vitamin B6 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 50% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 2 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 3 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 1 |
Dose per serving from research: Riboflavin
6 study groups in 6 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, 50% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg or less | 1 |
| 250 mcg to 500 mcg | 1 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 3 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 1 |
Dose per serving from research: Thiamine
6 study groups in 6 studies say how much Thiamine participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 50% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg or less | 1 |
| 250 mcg to 500 mcg | 1 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 3 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 1 |
Commonly used together
6 of 6 study groups took Folic Acid, Vitamin B6, Riboflavin, Thiamine and Vitamin A with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin B12 | 6 |
| Vitamin E | 6 |
| Iron | 5 |
| Niacin | 5 |
| Vitamin C | 5 |
| Copper | 4 |
| Vitamin D | 4 |
| Zinc | 4 |
| Iodine | 3 |
| Selenium | 3 |
6 study groups
| Study | |||||||
|---|---|---|---|---|---|---|---|
| Modifying effects of maternal Hb concentration on infant birth weight in women receiving prenatal iron-containing supplements: a randomised controlled trial 2016 · MMN group · Pregnant women aged at least 20 years, nulliparous, with Hb concentration ≥100 g/L and enrolled before 20 weeks of gestation | 400 mcg | 1.9 mg | 1.4 mg | 1.4 mg | 800 mcg | — | — |
| 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 | 400 mcg | 2.2 mg | 1.8 mg | 1.6 mg | 1 mg | — | — |
| Multivitamin supplementation of HIV-positive women during pregnancy reduces hypertension 2005 · Multivitamin plus vitamin A · HIV-positive pregnant Tanzanian women | 800 mcg | 25 mg | 20 mg | 20 mg | 5,000 IU | — | — |
| 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 | 400 mcg | 271 mcg | 200 mcg | 200 mcg | 114 mcg | 54 weeks | 1,469 |
| Daily supplementation of a multiple micronutrient powder improves folate but not thiamine, riboflavin, or vitamin B(12) status among young Laotian children: a randomized controlled trial 2022 · micronutrient powder group (MNP) · Children aged 6–23 months in rural Lao PDR; no disease-based selection, with high prevalence of undernutrition and micronutrient deficiencies | 150 mcg | 500 mcg | 500 mcg | 500 mcg | 400 mcg | 36 weeks | 130 |
| A novel nutritional supplement to reduce plasma homocysteine in nonpregnant women: A randomised controlled trial in The Gambia 2019 · UNIMMAP tablet · Nonpregnant, non-lactating healthy women aged 18–45 years in West Kiang, The Gambia; women of reproductive age with common micronutrient deficiencies in the population | 400 mcg | 1.9 mg | 1.4 mg | 1.4 mg | — | 12 weeks | 105 |