Vitamin B9 and Iron: study protocols

7 study groups took Vitamin B9 together with Iron. These are the doses the studies gave. They are not a recommendation.

Dose per serving from research: Vitamin B9

7 study groups in 3 studies say how much Vitamin B9 participants took a day.

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

Most common: 250 mcg to 500 mcg, 43% of 7 study groups.

Daily dose	Study groups
50 mcg to 100 mcg	2
100 mcg to 250 mcg	0
250 mcg to 500 mcg	3
500 mcg to 1 mg	0
1 mg to 2.5 mg	0
2.5 mg to 5 mg	2

Dose per serving from research: Iron

5 study groups in 2 studies say how much Iron 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
10 mg to 25 mg	2
25 mg to 50 mg	2
50 mg to 100 mg	1

Commonly used together

7 of 7 study groups took Vitamin B9 and Iron with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken with	Study groups
Vitamin E	5
Vitamin B12	4

7 study groups

Study
Premature infants require additional folate and vitamin B-12 to reduce the severity of the anemia of prematurity 1994 · folate · Premature infants born at <1800 g and <36 weeks' gestation	100 mcg	—	120 days	—
Effects of prenatal micronutrient and early food supplementation on metabolic status of the offspring at 4.5 years of age. The MINIMat randomized trial in rural Bangladesh 2016 · MMS · Pregnant women in rural Bangladesh; offspring assessed at 4.5 years	400 mcg	30 mg	—	439
Maternal cortisol and stress are associated with birth outcomes, but are not affected by lipid-based nutrient supplements during pregnancy: an analysis of data from a randomized controlled trial in rural Malawi 2015 · LNS · Pregnant women aged 15–49 years in rural Malawi, enrolled at up to 20 weeks of gestation	2.8 mg	20 mg	—	418
Maternal cortisol and stress are associated with birth outcomes, but are not affected by lipid-based nutrient supplements during pregnancy: an analysis of data from a randomized controlled trial in rural Malawi 2015 · MMN · Pregnant women aged 15–49 years in rural Malawi, enrolled at up to 20 weeks of gestation	2.8 mg	20 mg	—	415
Premature infants require additional folate and vitamin B-12 to reduce the severity of the anemia of prematurity 1994 · folate plus vitamin B-12 · Premature infants born at <1800 g and <36 weeks' gestation	100 mcg	—	120 days	—
Effects of prenatal micronutrient and early food supplementation on metabolic status of the offspring at 4.5 years of age. The MINIMat randomized trial in rural Bangladesh 2016 · Fe30F · Pregnant women in rural Bangladesh; offspring assessed at 4.5 years	400 mcg	30 mg	—	458
Effects of prenatal micronutrient and early food supplementation on metabolic status of the offspring at 4.5 years of age. The MINIMat randomized trial in rural Bangladesh 2016 · Fe60F · Pregnant women in rural Bangladesh; offspring assessed at 4.5 years	400 mcg	60 mg	—	454

B9IroVitamin B9 and Iron: study protocols

Dose per serving from research: Vitamin B9

Dose per serving from research: Iron

Commonly used together

Vitamin B9 and Iron: study protocols