Evidence map›Paper›PMID 31238996›Full record

ArticlePublic health nutrition2019

Production-related contaminants (pesticides, antibiotics and hormones) in organic and conventionally produced milk samples sold in the USA.

Jean A Welsh, Hayley Braun, Nicole Brown, Caroline Um, Karen Ehret, Janet Figueroa, Dana Boyd Barr

Open access · hybridAbstract read
In one paragraph

Article in Public health nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 57 citations in OpenAlex.

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  15. Triacylglycerides and Cholesterol in Organic Milk from Chiapas, Mexico.Animals : an open access journal from MDPI · 2022
    Article
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  20. Mitochondrial Proteostasis Requires Genes Encoded in a Neurodevelopmental Syndrome Locus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
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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 3 institutions in 1 country.

Jean A WelshDepartment of Pediatrics, Emory University School of Medicine, W-450 Health Sciences Research Building - Room E400, 1760 Haygood Drive NE, Atlanta, GA 30322, USA.
Hayley BraunDepartment of Pediatrics, Emory University School of Medicine, W-450 Health Sciences Research Building - Room E400, 1760 Haygood Drive NE, Atlanta, GA 30322, USA.
Nicole BrownDepartment of Pharmacology, Emory University School of Medicine, Atlanta, GA, USA.
Caroline UmDepartment of Epidemiology, Rollins School of Public Health, Atlanta, GA, USA.
Karen EhretDepartment of Environmental Health, Rollins School of Public Health, Atlanta, GA, USA.
Janet FigueroaDepartment of Pediatrics, Emory University School of Medicine, W-450 Health Sciences Research Building - Room E400, 1760 Haygood Drive NE, Atlanta, GA 30322, USA.
Dana Boyd BarrDepartment of Environmental Health, Rollins School of Public Health, Atlanta, GA, USA.
Emory University · USGeorgia Department of Public Health · USChildren's Healthcare of Atlanta · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveConsumption of cow's milk, which is associated with diet and health benefits, has decreased in the USA. The simultaneous increase in demand for more costly organic milk suggests consumer concern about exposure to production-related contaminants may be contributing to this decline. We sought to determine if contaminant levels differ by the production method used.

designHalf-gallon containers of organic and conventional milk (four each) were collected by volunteers in each of nine US regions and shipped on ice for analysis. Pesticide, antibiotic and hormone (bovine growth hormone (bGH), bGH-associated insulin-like growth factor 1 (IGF-1)) residues were measured using liquid or gas chromatography coupled to mass or tandem mass spectrometry. Levels were compared against established federal limits and by production method.

settingLaboratory analysis of retail milk samples.

resultsCurrent-use pesticides (5/15 tested) and antibiotics (5/13 tested) were detected in several conventional (26-60 %; n 35) but not in organic (n 34) samples. Among the conventional samples, residue levels exceeded federal limits for amoxicillin in one sample (3 %) and in multiple samples for sulfamethazine (37 %) and sulfathiazole (26 %). Median bGH and IGF-1 concentrations in conventional milk were 9·8 and 3·5 ng/ml, respectively, twenty and three times that in organic samples (P < 0·0001).

conclusionsCurrent-use antibiotics and pesticides were undetectable in organic but prevalent in conventionally produced milk samples, with multiple samples exceeding federal limits. Higher bGH and IGF-1 levels in conventional milk suggest the presence of synthetic growth hormone. Further research is needed to understand the impact of these differences, if any, on consumers.

Indexed as

AnimalsAnti-Bacterial AgentsDrug ResiduesFood, OrganicGrowth HormoneHormonesMilkPesticide ResiduesSomatomedinsAnti-Bacterial AgentsGrowth Hormonegrowth hormone, bovineHormonesPesticide ResiduesSomatomedinsAntibioticsContaminantsHormonesInsulin-like growth factor 1MilkOrganicPesticidesProduction

Identifiers

PMID31238996
PMCPMC6792142
OpenAlexW2955303246

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.