In the last fifteen years, the amount of marine omega-3 fatty acids in farmed salmon has halved. One serving is still enough to cover the daily requirement.
This is the opinion of the Marine Research Institute, which looked at the content of the most important nutrients in farmed salmon over the last 15 years.
"Our results show that while marine omega-3 fatty acids are more than half that, salmon still contains many important nutrients," says PhD student Amalie Moxness Reksten in a press release.
Over the past fifteen years, farmed salmon have moved from eating mostly marine-based forage to more plant-based ingredients such as soybeans, canola, wheat, corn and sunflower.
- Feed changes affect the content of the fish fillets we eat, says Reksten.
"We saw the biggest drop in omega-3s between 2005 and 2011, while levels have been relatively stable in recent years," he says.
On the other hand, the vitamin D content remained stable while the vitamin B12 content increased slightly. The amount of iodine has dropped.
- Fatty fish contain little iodine, which is confirmed by our research. In fact, the iodine content has decreased somewhat over time despite the low amount. This is Reksten.
Source: NTB
