Consumption of omega-3 fatty acids has been shown to have many benefits, including promotion of cardiovascular and neurological health. These compounds have also been linked with control of behavioural problems such as attention deficit hyperactivity disorder (ADHD) in children. The current major source in the human diet is fish oil, but with declining fish stocks and recommended increased consumption of oily fish, alternative sources of omega-3 are being investigated. Work within Menterra at the University of Wales Bangor has progressed to look at ways of increasing the omega-3 fatty acid content in lambs, by supplementing their diet with linseed, an oilseed crop, with high levels of omega-3.

In 2005 lambs were fed on a standard finishing diet for either 4 or 7 weeks supplemented with different levels of linseed. A straight concentrate diet was also included as a control to fully determine the effects of each treatment. Following slaughter, the fatty acid profile of the meat samples was analysed. Differences were found between the lambs fed purely on grass and those that were supplemented. The experiment is now being repeated to confirm the results. If successful, linseed could provide the opportunity to market premium branded products with superior characteristics, including health benefits and traceability.