Vitamin D in Wild and Farmed Atlantic Salmon (Salmo Salar)-What Do We Know?

• Published in: Nutrients
• Main Authors: Jakobsen, Jette, Smith, Cat, Bysted, Anette, Cashman, Kevin D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2019
• Subjects: Salmo salar; Aquaculture; Farmed; Salmon; Salmonids; Vitamin D; Vitamin D3; Wild; Atlantic salmon
• Online Access: https://orbit.dtu.dk/en/publications/ac92e377-7cb6-4158-9a78-ac679c283096; https://doi.org/10.3390/nu11050982; https://backend.orbit.dtu.dk/ws/files/177394362/nutrients_11_00982_1_.pdf

Salmon have been widely publicized as a good dietary source of vitamin D, but recent data points to large variation in vitamin D content and differences between wild and farmed salmon. We aimed to: (1) investigate the content of vitamin D in Atlantic salmon (Salmo salar) in wild species caught in two different waters, (2) perform a 12-week feeding trial in farmed Salmo salar with 270-1440 µg vitamin D3/kg feed (4-20 times maximum level in the EU) and (3) conduct a review for the published data on the content of vitamin D in salmonids. Content of vitamin D3 in the fillet from wild salmon caught in the Baltic Sea and the North Sea was significantly different (p <0.05), being 18.5 ± 4.6 µg/100 g and 9.4 ± 1.9 µg/100 g, respectively. In the farmed salmon the content ranged from 2.9 ± 0.7 µg vitamin D3/100 g to 9.5 ± 0.7 µg vitamin D3/100 g. Data from 2018 shows that farmed salmon contained 2.3-7.3 µg vitamin D3/100 g. Information on the content of vitamin D in wild and farmed salmonids is very limited, which calls for further research to ensure a sustainable production of salmon with adequate vitamin D.