| Survey of retail milk composition as affected by label claims regarding farm-management practices. | |
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MedLine Citation:
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PMID: 18589029 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A trend in food labeling is to make claims related to agricultural management, and this is occurring with dairy labels. A survey study was conducted to compare retail milk for quality (antibiotics and bacterial counts), nutritional value (fat, protein, and solids-not-fat), and hormonal composition (somatotropin, insulin-like growth factor-1 [IGF-1], estradiol, and progesterone) as affected by three label claims related to dairy-cow management: conventional, recombinant bovine somatotropin (rbST)-free (processor-certified not from cows supplemented with rbST), or organic (follows US Department of Agriculture organic practices). Retail milk samples (n=334) from 48 states were collected. Based on a statistical analysis that reflected the sampling schema and distributions appropriate to the various response variables, minor differences were observed for conventional, rbST-free, and organic milk labels. Conventionally labeled milk had the lowest (P<0.05) bacterial counts compared to either milk labeled rbST-free or organic; however, these differences were not biologically meaningful. In addition, conventionally labeled milk had significantly less (P<0.05) estradiol and progesterone than organic milk (4.97 vs 6.40 pg/mL and 12.0 vs 13.9 ng/mL, respectively). Milk labeled rbST-free had similar concentrations of progesterone vs conventional milk and similar concentrations of estradiol vs organic milk. Concentrations of IGF-1 in milk were similar between conventional milk and milk labeled rbST-free. Organic milk had less (P<0.05) IGF-1 than either conventional or rbST-free milk (2.73 ng/mL vs 3.12 and 3.04 ng/mL, respectively). The macronutrient profiles of the different milks were similar, except for a slight increase in protein in organic milk (about 0.1% greater for organic compared to other milks). Label claims were not related to any meaningful differences in the milk compositional variables measured. It is important for food and nutrition professionals to know that conventional, rbST-free, and organic milk are compositionally similar so they can serve as a key resource to consumers who are making milk purchase (and consumption) decisions in a marketplace where there are misleading milk label claims. |
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Authors:
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John Vicini; Terry Etherton; Penny Kris-Etherton; Joan Ballam; Steven Denham; Robin Staub; Daniel Goldstein; Roger Cady; Michael McGrath; Matthew Lucy |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of the American Dietetic Association Volume: 108 ISSN: 0002-8223 ISO Abbreviation: J Am Diet Assoc Publication Date: 2008 Jul |
Date Detail:
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Created Date: 2008-06-30 Completed Date: 2008-07-17 Revised Date: 2009-01-29 |
Medline Journal Info:
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Nlm Unique ID: 7503061 Medline TA: J Am Diet Assoc Country: United States |
Other Details:
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Languages: eng Pagination: 1198-203 Citation Subset: AIM; IM |
Affiliation:
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Monsanto Company LC, St Louis, MO 63167, USA. john.l.vicini@monsanto.com <john.l.vicini@monsanto.com> |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Nutritional Physiological Phenomena
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physiology* Animals Anti-Bacterial Agents / administration & dosage, analysis Cattle / metabolism, physiology Cell Count Consumer Product Safety Consumer Satisfaction Dairying / methods* Female Food Labeling* Growth Hormone / administration & dosage, analysis* Humans Milk / chemistry*, standards Milk Proteins / analysis* Nutritive Value United States |
| Chemical | |
Reg. No./Substance:
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0/Anti-Bacterial Agents; 0/Milk Proteins; 9002-72-6/Growth Hormone |
| Comments/Corrections | |
Comment In:
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J Am Diet Assoc. 2008 Dec;108(12):1991; author reply 1991
[PMID:
19027395
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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