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Zinc, Folic Acid and Riboflavin: study protocols

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

Zinc: what the research found →

Dose per serving from research: Zinc

5 study groups in 4 studies say how much Zinc 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 doseStudy groups
10 mg or less
1
10 mg to 25 mg
1
25 mg to 50 mg
3

Dose per serving from research: Folic Acid

5 study groups in 4 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 doseStudy groups
250 mcg to 500 mcg
5

Dose per serving from research: Riboflavin

5 study groups in 4 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, 60% of 5 study groups.

Daily doseStudy groups
1 mg to 2.5 mg
3
2.5 mg to 5 mg
2

Commonly used together

5 of 5 study groups took Zinc, Folic Acid and Riboflavin with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Iron
4
Vitamin D
4
Vitamin B12
3
Vitamin B6
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
30 mg400 mcg1.8 mg——
Maternal B-vitamin and vitamin D status before, during, and after pregnancy and the influence of supplementation preconception and during pregnancy: Prespecified secondary analysis of the NiPPeR double-blind randomized controlled trial
2023 · intervention · Women planning pregnancy; generally healthy, recruited before conception
10 mg400 mcg1.8 mg—870
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
30 mg400 mcg2.8 mg184 days75
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
30 mg400 mcg2.8 mg184 days75
Nutraceutical approaches to homocysteine lowering in hypertensive subjects at low cardiovascular risk: a multicenter, randomized clinical trial
2016 · Normocis 400® group · Adults with stage 1 essential hypertension and hyper-homocysteinemia (HCys ≥15 μmol/L), without a history of cardiovascular or cerebrovascular disease; mean age 62.8 years, 63.5% male
12.5 mg400 mcg2.4 mg60 days52
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