Evidence map›Paper›PMID 20219968›Full record

ArticleThe American journal of clinical nutrition2010

Is protein intake associated with bone mineral density in young women?

Jeannette M Beasley, Laura E Ichikawa, Brett A Ange, Leslie Spangler, Andrea Z LaCroix, Susan M Ott, Delia Scholes

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
4.4field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Dietary protein and bone health across the life-course: an updated systematic review and meta-analysis over 40 years.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Pooled it
  2. Pooled it
  3. High protein consumption in trained women: bad to the bone?Journal of the International Society of Sports Nutrition · 2018
    Trial
  4. Amino Acid Intakes Are Associated With Bone Mineral Density and Prevalence of Low Bone Mass in Women: Evidence From Discordant Monozygotic Twins.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2016
    Trial
  5. Review
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  7. Determinants of bone mineral density in young Australian women; results from the Safe-D study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
    Article
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  11. Observational
  12. Review
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  15. Article
  16. Protein intake, calcium balance and health consequences.European journal of clinical nutrition · 2012
    Review
  17. Review
  18. The interaction between dietary protein and bone health.Journal of bone and mineral metabolism · 2011
    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

7 authors at 5 institutions in 1 country.

Jeannette M BeasleyGroup Health Research Institute, 1730 Minor Avenue, Suite 1600, Seattle, WA 98101, USA. beasley.j@ghc.org
Laura E Ichikawa
Brett A Ange
Leslie Spangler
Andrea Z LaCroix
Susan M Ott
Delia Scholes
Cancer Research Center · USFred Hutch Cancer Center · USGroup Health Cooperative · USKaiser Permanente Washington Health Research Institute · USWomen's Health Initiative · US

Funding

Oral Contraceptive Use and Bone Density in Young WomenR01HD031165 · NICHD · KAISER FOUNDATION HEALTH PLAN OF WASHINGTON · PI SCHOLES, DELIA · 1994 to 2008
$3.9M
Health Care Improvement for Aging WomenT32AG027677 · NIA · KAISER FOUNDATION HEALTH PLAN OF WASHINGTON · PI LACROIX, ANDREA Z. · 2007 to 2016
$1.4M
Evidence for Establishing Optimum Protein Intake in Older AdultsK99AG035002 · NIA · FRED HUTCHINSON CANCER RESEARCH CENTER · PI BEASLEY, JEANNETTE MICHELE · 2010 to 2011
$211k
NIA NIH HHS K99 AG035002NIA NIH HHS T32-AG027677NICHD NIH HHS R01 HD031165NICHD NIH HHS R01 HD31165-01NICHD NIH HHS R01 HD31165-08
6 · The paper itself

Abstract

backgroundThe range of protein intakes for optimizing bone health among premenopausal women is unclear. Protein is a major constituent of bone, but acidic amino acids may promote bone resorption.

objectiveThe objective was to examine cross-sectional and longitudinal associations between baseline dietary protein and bone mineral density (BMD) among 560 females aged 14-40 y at baseline enrolled in a Pacific Northwest managed-care organization. The role of protein source (animal or vegetable) and participant characteristics were considered.

designDietary protein intake was assessed by using a semiquantitative food-frequency questionnaire in participants enrolled in a study investigating associations between hormonal contraceptive use and bone health. Annual changes in hip, spine, and whole-body BMD were measured by using dual-energy X-ray absorptiometry. Cross-sectional and longitudinal associations between baseline protein intake (% of energy) and BMD were examined by using linear regression analysis and generalized estimating equations adjusted for confounders.

resultsThe mean (+/-SD) protein intake at baseline was 15.5 +/- 3.2%. After multivariable adjustment, the mean BMD was similar across each tertile of protein intake. In cross-sectional analyses, low vegetable protein intake was associated with a lower BMD (P = 0.03 for hip, P = 0.10 for spine, and P = 0.04 for whole body). For every percentage increase in the percentage of energy from protein, no significant longitudinal changes in BMD were observed at any anatomic site over the follow-up period.

conclusionsData from this longitudinal study suggest that a higher protein intake does not have an adverse effect on bone in premenopausal women. Cross-sectional analyses suggest that low vegetable protein intake is associated with lower BMD.

Indexed as

Absorptiometry, PhotonAdolescentAdultAnimalsBody Mass IndexBone DensityCross-Sectional StudiesDietDietary ProteinsEnergy IntakeEthnicityExerciseFeeding BehaviorFemaleFractures, BoneHumansDietary Proteins

Identifiers

PMID20219968
PMCPMC2854905
OpenAlexW2109137131

What OpenQuestion holds

Textmetadata
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.