[orev]

Wild-caught salmon is pink because of the krill they eat, so in a way it’s also a dye. Farmed salmon definitely has coloring added to get this effect, but otherwise the flesh itself isn’t naturally pink.

[maxerickson]

The color in the farmed Salmon is the same compounds as the wild:

https://www.dal.ca/news/2023/03/21/farmed-salmon-colour-heal...

The amounts differ, and the farm feed may be synthetic.