Showing results for: Fish oils/long chain fatty acids
This report from UK food waste NGO Feedback argues that sustainability certification of wild-caught forage fish as feed for Scottish salmon aquaculture companies could in fact be driving overfishing.
This research shows that global replacement of fish meal and fish oil in aquaculture feed with alternative feeds (including algae, bacteria, yeast and insects) could reduce aquaculture’s demand for forage fish while - depending on the specific mix of alternative feeds - maintaining feed efficiency and levels of omega 3 fatty acids in the farmed fish.
This report explains several trends and issues impacting the edible fats and oils system, including increasing demand, land use, public health, climate impacts, restrictions on trans fats, the search for alternatives to palm oil and soy, and supply chain transparency.
FCRN member Samuel Smith of international sustainability non-profit Forum for the Future has contributed to this report, which sets out the case for organisations to act on the sustainability of all the fats and oils in their supply chains, including but not limited to palm oil.
This systematic review considers how seafood is currently incorporated and assessed in the sustainable diets literature and examines the barriers to more adequate inclusion of seafood within research on sustainable diets.
Various health agencies recommend dietary intake of the two fatty acids omega-3 Eicosapentaenoic Acid (EPA) and Docosahexaenoic Acid (DHA) at a level between 250 and 500 mg/day.
This ScienceDaily article describes how researchers at Wageningen University and Research Centre have shown that insect oils – currently extracted from insects alongside the desired edible proteins but discarded as a waste product – contain omega-3 fatty acids.
This research shows that it is possible to modify plant seeds to produce omega 3 fatty acids. Through a process of genetic modification, the research modifies the plant Camelina sativa (false flax) with genes from microalgae – the main producers of the omega 3 fatty acids DHA and EPA. The oil extracted from the seeds can then be used as a more sustainable alternative to fish oils.
This study (published in 2010) may be of interest. It looks at how the fat content and profile of poultry meat has changed over time. Although poultry meat is often considered to be a ‘healthy’ low fat meat, the study finds that the fat content now exceeds the protein content. Moreover, the composition of that fat has changed over time – due to changes in poultry diets, the Omega 3 content (ie. good fats that are also found in oily fish and that are often lacking in the diet) has declined relative to the more abundant Omega 6 fat.
A study published in the journal Perspectives on Psychological Science reviews the Database on Raising Intelligence to find interventions that increased children’s intelligence. One such intervention involved supplementing infants with long-chain polyunsaturated fatty acids, and the study concludes that this does indeed have a positive impact on children’s IQ.