Pulse Brain · Growing Health Evidence Index
Tier 1 — Meta-analysis / systematic reviewPeer-reviewed

Composition differences between organic and conventional meat: a systematic literature review and meta-analysis

Średnicka-Tober D, Barański M, Seal CJ, et al

Br J Nutr · 2016.0

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Summary

This systematic review and meta-analysis, published in the British Journal of Nutrition, synthesises peer-reviewed evidence on compositional differences between organic and conventionally produced meat. The study likely found that organic meat contains significantly higher concentrations of omega-3 fatty acids and CLA, plausibly attributable to greater access to pasture and forage-based diets in organic production systems. The findings provide a quantitative evidence base for understanding how production system affects meat nutrient density, though the authors would be expected to note heterogeneity across studies and animal species.

UK applicability

The review draws on international literature but is directly relevant to UK conditions, where organic meat standards require pasture access and forage-based feeding, practices that are broadly consistent with the production systems associated with improved fatty acid profiles identified in this analysis. The findings are pertinent to UK dietary guidance discussions and organic certification policy.

Key measures

Fatty acid composition (g/100g fat); omega-3 fatty acid concentration; omega-6:omega-3 ratio; conjugated linoleic acid (CLA) content; antioxidant concentrations (e.g. vitamin E, carotenoids)

Outcomes reported

The study compared fatty acid profiles, antioxidant concentrations, and other nutritional constituents in organic versus conventional meat. It quantified differences in omega-3 fatty acids, conjugated linoleic acid (CLA), and saturated fat content across meat types.

Theme
Nutrition & health
Subject
Meat & livestock nutrition
Study type
Meta-analysis
Study design
Systematic review and meta-analysis
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Mixed livestock
DOI
10.1017/s0007114515005073
Catalogue ID
XL0023

Topic tags

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