Pretty in pink ... but it's not natural.
A Seattle law firm is suing three grocery chains, contending the stores should tell shoppers the farm-raised salmon they're buying has been dyed pink.
The flesh of farmed salmon is naturally grayish. Synthetic pigments are added to farmed fish food to give the salmon the same bright color as wild salmon.
Wild salmon get their pink color as a result of eating krill or other small crustaceans.