Elevated Dietary Vitamin D Supplementation During Winter can Mimic Vitamin D Levels Induced by Summer Daylight Exposure in Atlantic Salmon
Frederike Keitel-Gröner, David Lausten Knudsen, Eirik Hoel, Margunn Sandstad, Kjetil Berge · 2026
Read Elevated Dietary Vitamin D Supplementation During Winter can Mimic Vitamin D Levels Induced by Summer Daylight Exposure in Atlantic Salmon by Frederike Keitel-Gröner, David Lausten Knudsen, Eirik Hoel, Margunn Sandstad, Kjetil Berge (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13248107.txt.
Description
Keitel-Gröner and co-authors fed farmed salmon extra vitamin D through a Norwegian winter, in this 2026 Aquaculture Nutrition study. Modern salmon feeds use less fishmeal and fish oil, so the fish. Eventually the people eating them, get less vitamin D, and winter darkness cuts the fish's own supply further. Under commercial conditions in southern Norway, salmon received either a standard diet or one with ten times the vitamin D for thirty-two weeks spanning winter into summer.
The enriched fish tolerated the dose without harm to growth or survival. Vitamin D levels in blood, liver, and muscle rose, offsetting the winter dip and approaching summer-like tissue levels, though seasons still left their mark. The authors conclude dietary boosting can raise the nutritional quality of farmed salmon fillets for human consumers.
Catalog record
| CREATOR | Frederike Keitel-Gröner, David Lausten Knudsen, Eirik Hoel, Margunn Sandstad, Kjetil Berge |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 38 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |