Summary
This review examines the influence of production system variables — including pasture feeding, breed, and dietary lipid supplementation — on the fatty acid profile of beef, with emphasis on nutritionally beneficial lipids such as long-chain omega-3 fatty acids and CLA. The authors draw on European and international research to assess how grass-based and alternative production systems compare with grain-fed systems in delivering healthier lipid profiles to consumers. The paper makes a case for production-side interventions as a means of enhancing the contribution of beef to dietary recommendations for PUFA intake.
UK applicability
Highly applicable to UK conditions, where grass-based and mixed livestock systems predominate and there is ongoing policy and consumer interest in the nutritional quality of pasture-fed beef. The findings support arguments for maintaining or expanding grass-fed production systems as a means of delivering nutritional benefit, relevant to UK red meat sector bodies and public health nutrition policy.
Key measures
Fatty acid composition (% total fatty acids); omega-3 PUFA concentration (mg/100g); n-6:n-3 ratio; conjugated linoleic acid (CLA) content; intramuscular fat percentage
Outcomes reported
The paper reviews how different beef production systems and dietary interventions influence the fatty acid composition of beef lipids, with particular focus on increasing omega-3 polyunsaturated fatty acids (PUFA) and conjugated linoleic acid (CLA) concentrations. It evaluates the potential human health benefits associated with modified beef lipid profiles.
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