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Iodine and Iron: study protocols

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

Iodine: what the research found →

Dose per serving from research: Iodine

7 study groups in 5 studies say how much Iodine participants took a day.

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

Most common: 100 mcg to 250 mcg, 86% of 7 study groups.

Daily doseStudy groups
50 mcg or less
1
50 mcg to 100 mcg
0
100 mcg to 250 mcg
6

Dose per serving from research: Iron

7 study groups in 5 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, 57% of 7 study groups.

Daily doseStudy groups
5 mg or less
1
5 mg to 10 mg
0
10 mg to 25 mg
4
25 mg to 50 mg
2

Commonly used together

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

What was given together, not what works together.

Taken withStudy groups
Folic Acid
4
Zinc
4
Vitamin A
3
Vitamin B12
3
Vitamin D
3

7 study groups

Study
Supplementation during pregnancy with small-quantity lipid-based nutrient supplements or multiple micronutrients, compared with iron and folic acid, increases women's urinary iodine concentration in semiurban Ghana: A randomized controlled trial
2018 · MMN group · Pregnant women aged 18 years or older, enrolled at 20 weeks of gestation or earlier, in semiurban Ghana
250 mcg20 mg—102
Supplementation during pregnancy with small-quantity lipid-based nutrient supplements or multiple micronutrients, compared with iron and folic acid, increases women's urinary iodine concentration in semiurban Ghana: A randomized controlled trial
2018 · LNS group · Pregnant women aged 18 years or older, enrolled at 20 weeks of gestation or earlier, in semiurban Ghana
250 mcg20 mg—101
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 mcg12 mg—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 mcg12 mg—859
Antenatal Multiple Micronutrient Supplementation Compared to Iron-Folic Acid Affects Micronutrient Status but Does Not Eliminate Deficiencies in a Randomized Controlled Trial Among Pregnant Women of Rural Bangladesh
2019 · MM · Pregnant women aged 12–45 years in rural Bangladesh
220 mcg27 mg165 days749
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
220 mcg27 mg—176
Impact of micronutrient fortification of yoghurt on micronutrient status markers and growth - a randomized double blind controlled trial among school children in Bangladesh
2013 · Fortified yoghurt (FY group) · Children aged 6–9 years attending primary schools in rural Bangladesh; boys and girls, with a high prevalence of anemia and suboptimal micronutrient status
40 mcg3.3 mg1 year501