Evidence map›Paper›PMID 33670970›Full record

ArticleNutrients2021

Adequacy and Sources of Protein Intake among Pregnant Women in the United States, NHANES 2003-2012.

Mary M Murphy, Kelly A Higgins, Xiaoyu Bi, Leila M Barraj

Abstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. A Review of Modulation of Gut Microbiota to Mitigate Gestational Diabetes: Implications for Maternal and Child Health.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Observational
  12. Article
  13. Article
  14. Using FIGO Nutrition Checklist counselling in pregnancy: A review to support healthcare professionals.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2023
    Review
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

4 authors.

Mary M MurphyExponent, Inc., Center for Chemical Regulation and Food Safety, Washington, DC 20036, USA.
Kelly A HigginsExponent, Inc., Center for Chemical Regulation and Food Safety, Washington, DC 20036, USA.
Xiaoyu BiExponent, Inc., Center for Chemical Regulation and Food Safety, Washington, DC 20036, USA.
Leila M BarrajExponent, Inc., Center for Chemical Regulation and Food Safety, Washington, DC 20036, USA.ORCID 0000-0001-7280-2764

Funding

National Pork Checkoff Funds 19-046
6 · The paper itself

Abstract

Limited information is available on protein intake and adequacy of protein intake among pregnant women. Using data from a sample of 528 pregnant women in the National Health and Nutrition Examination Surveys (NHANES) 2003-2012, usual intake of protein (g/day and g/kg body weight (bw)/day) and prevalence of intake below the Estimated Average Requirement (EAR) by trimester of pregnancy were calculated using the National Cancer Institute method. Percent contributions to protein intake by source (i.e., plant and animal, including type of animal source) were also calculated. Mean usual intake of protein was 88 ± 4.3, 82 ± 3.1, and 82 ± 2.9 g/day among women in trimester 1, 2, and 3 of pregnancy, respectively, or 1.30 ± 0.10, 1.35 ± 0.06, and 1.35 ± 0.05 g/kg bw/day, respectively. An estimated 4.5% of women in the first trimester of pregnancy consumed less protein than the EAR of 0.66 g/kg bw/day; among women in the second and third trimesters of pregnancy, 12.1% and 12.8% of women, respectively, consumed less protein than the EAR of 0.88 g/kg bw/day. Animal sources of protein accounted for approximately 66% of total protein. Findings from this study show that one in eight women in the second and third trimesters of pregnancy have inadequate intake of protein. Pregnant women should be encouraged to consume sufficient levels of protein from a variety of sources.

Indexed as

AdultAnimalsCross-Sectional StudiesDietDietary ProteinsFemaleHumansMaternal Nutritional Physiological PhenomenaMeatNutritional RequirementsNutrition SurveysPlant ProteinsPregnancyPregnancy TrimestersUnited StatesDietary ProteinsPlant Proteinsdietary intakemacronutrientmaternal dietnutrient intake adequacypregnancyprotein

Identifiers

PMID33670970
PMCPMC7997328

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Registered trials

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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.