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All Calcium study protocols

Calcium, Iron and Folic Acid: study protocols

7 study groups took Calcium together with Iron and Folic Acid. These are the doses the studies gave. They are not a recommendation.

Calcium: what the research found →

Dose per serving from research: Calcium

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

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

Most common: 1 g to 2.5 g, 43% of 7 study groups.

Daily doseStudy groups
100 mg to 250 mg
2
250 mg to 500 mg
0
500 mg to 1 g
2
1 g to 2.5 g
3

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: 50 mg to 100 mg, 60% of 5 study groups.

Daily doseStudy groups
10 mg to 25 mg
2
25 mg to 50 mg
0
50 mg to 100 mg
3

Dose per serving from research: Folic Acid

5 study groups in 2 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

Commonly used together

4 of 7 study groups took Calcium, Iron and Folic Acid with something else, but nothing that 3 or more different studies gave.

7 study groups

Study
Integrating Calcium Into Antenatal Iron-Folic Acid Supplementation in Ethiopia: Women's Experiences, Perceptions of Acceptability, and Strategies to Support Calcium Supplement Adherence
2020 · 3-event regimen · Healthy pregnant women aged 16 years or older, 12–28 weeks’ gestation, in rural Ethiopia
1.5 g65 mg400 mcg6 weeks17
Integrating Calcium Into Antenatal Iron-Folic Acid Supplementation in Ethiopia: Women's Experiences, Perceptions of Acceptability, and Strategies to Support Calcium Supplement Adherence
2020 · 2-event regimen · Healthy pregnant women aged 16 years or older, 12–28 weeks’ gestation, in rural Ethiopia
1 g65 mg400 mcg6 weeks16
Integrating Calcium Into Antenatal Iron-Folic Acid Supplementation in Ethiopia: Women's Experiences, Perceptions of Acceptability, and Strategies to Support Calcium Supplement Adherence
2020 · 4-event regimen · Healthy pregnant women aged 16 years or older, 12–28 weeks’ gestation, in rural Ethiopia
1.5 g65 mg400 mcg6 weeks15
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
150 mg12 mg400 mcg—870
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 · control · Women planning pregnancy; generally healthy, recruited before conception
150 mg12 mg400 mcg—859
A Simplified Regimen Compared with WHO Guidelines Decreases Antenatal Calcium Supplement Intake for Prevention of Preeclampsia in a Cluster-Randomized Noninferiority Trial in Rural Kenya
2017 · standard regimen · Pregnant women enrolled between 16 and 30 weeks of gestation
1.5 g——8 weeks—
A Simplified Regimen Compared with WHO Guidelines Decreases Antenatal Calcium Supplement Intake for Prevention of Preeclampsia in a Cluster-Randomized Noninferiority Trial in Rural Kenya
2017 · low-dose regimen · Pregnant women enrolled between 16 and 30 weeks of gestation
1 g——8 weeks—