I’m not an expert so maybe someone else can chime in if I’m wrong, but: farmed salmon is not dyed pink. Their feed is supplemented with carotenoids like astaxan

I’m not an expert so maybe someone else can chime in if I’m wrong, but: farmed salmon is not dyed pink. Their feed is supplemented with carotenoids like astaxanthin. These are substances they get in their diet naturally in the wild, is necessary for their health, and is also responsible for the pink color. This is the same class of chemicals which gives flamingos their distinctive pink colors. Flamingos, like wild salmon, eat algae and small crustaceans, both of which contain a lot of carotenoids. Eating a lot of carotenoids can give humans (especially light skinned ones) carotenosis, which is a distinct orange or yellow tint of the skin. You have to eat quite a bit to get it though.