Science, Space and Technology News 2024
Researchers have found that farmed salmon production results in a decrease in many essential nutrients compared to the wild fish used as feed. Consuming wild fish directly could improve nutrient intake and reduce pressure on marine resources. The study suggests dietary changes and industry improvements to enhance both human health and environmental sustainability.
Researchers analyzed the flow of nutrients from the edible species of wild fish used as feed, to the farmed salmon they were fed to. They found a decrease in six out of nine nutrients in the salmon fillet – calcium, iodine, iron, omega-3, vitamin B12, and vitamin A, but increased levels of selenium and zinc.
“Making a few small changes to our diet around the type of fish that we eat can go a long way to changing some of these deficiencies and increasing the health of both our population and planet,” said Willer. This approach could help address global nutrient deficiencies say the team of scientists from the University of Cambridge, Lancaster University, University of Stirling, and the University of Aberdeen. The study was published in the journal,The scientists calculated the balance of nutrients in edible portions of whole wild fish, used within pelleted salmon feed in Norway, compared to the farmed salmon fillets.
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