Evidence map›Paper›PMID 34071548›Full record

ReviewNutrients2021

Evidence-Based Recommendations for an Optimal Prenatal Supplement for Women in the U.S., Part Two: Minerals.

James B Adams, Jacob C Sorenson, Elena L Pollard, Jasmine K Kirby, Tapan Audhya

Open access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
12.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Evolving Concepts in Gestational Iodine Requirements.Healthcare (Basel, Switzerland) · 2026
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Nutrition, Pregnancy, and Preexisting Diabetes: Exploring What Has Changed and What Remains the Same.Diabetes spectrum : a publication of the American Diabetes Association · 2025
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Nutritional Composition and Antioxidant Activity ofPlants (Basel, Switzerland) · 2023
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

James B AdamsSchool of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.ORCID 0000-0001-8683-4062
Jacob C SorensonSchool of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
Elena L PollardSchool of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
Jasmine K KirbySchool of Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA.
Tapan AudhyaNeurological Health Foundation, Dallas, TX 75230, USA.
Arizona State University · USUniversity of Arizona · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The levels of many essential minerals decrease during pregnancy if un-supplemented, including calcium, iron, magnesium, selenium, zinc, and possibly chromium and iodine. Sub-optimal intake of minerals from preconception through pregnancy increases the risk of many pregnancy complications and infant health problems. In the U.S., dietary intake of minerals is often below the Recommended Dietary Allowance (RDA), especially for iodine and magnesium, and 28% of women develop iron deficiency anemia during their third trimester. The goal of this paper is to propose evidence-based recommendations for the optimal level of prenatal supplementation for each mineral for most women in the United States. Overall, the evidence suggests that optimal mineral supplementation can significantly reduce a wide range of pregnancy complications (including anemia, gestational hypertension, gestational diabetes, hyperthyroidism, miscarriage, and pre-eclampsia) and infant health problems (including anemia, asthma/wheeze, autism, cerebral palsy, hypothyroidism, intellectual disability, low birth weight, neural tube defects, preterm birth, rickets, and wheeze). An evaluation of 180 commercial prenatal supplements found that they varied widely in mineral content, often contained only a subset of essential minerals, and the levels were often below our recommendations. Therefore, there is a need to establish recommendations on the optimal level of mineral supplementation during pregnancy.

Indexed as

Dietary SupplementsMetalsMineralsPrenatal CareAdultEvidence-Based MedicineFemaleHumansPregnancyPregnancy ComplicationsUnited StatesYoung AdultMetalsMineralscalciumchromiumironmagnesiummineralspregnancyseleniumsupplements

Identifiers

PMID34071548
PMCPMC8229801
OpenAlexW3164272215

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.