Grass-finished lamb changed blood fatty acids without clear cardiovascular-marker differences
Healthy participants eating grass-finished lamb had higher levels of selected omega-3 fatty acids than those eating concentrate-finished lamb. Cardiovascular risk markers did not clearly differ.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
Eating grass-finished lamb produced higher levels of selected omega-3 fatty acids in blood plasma than eating concentrate-finished lamb. The trial did not find differences in the cardiovascular risk factors it measured. This supports a blood-composition result, but does not demonstrate better heart health or establish that the diets have equivalent cardiovascular effects.
The trial was short and involved healthy participants. The abstract gives no numerical size for the fatty-acid differences or uncertainty ranges for cardiovascular markers, limiting assessment of their magnitude and precision.
What researchers found
Blood-plasma fatty-acid measurements
Grass-finished versus concentrate-finished lamb after four weeks: P < 0.05. The abstract does not report the size of these differences.
What changed in the blood
The reported differences concerned selected fatty acids in plasma, the liquid portion of blood. The study measured blood composition before and after the dietary period. Higher levels of these fatty acids are measurements, rather than clinical outcomes.
What the cardiovascular comparison showed
Researchers also examined heart rate, blood pressure and blood lipid markers. They reported no differences between the lamb groups for cardiovascular risk factors. Without detailed estimates, that result cannot establish either a cardiovascular benefit or identical effects.
The original publication
Consuming grass finished lamb improves blood plasma ω-3 fatty acid response among healthy consumers.
Perkins LS, Nugent AP, Woodside JV et al.
Eur J Nutr · 2025
- PubMed ID
- 40690019
- Record checked
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