The color of farmed salmon would be a dusty grey were it not for the unnatural addition of the petrochemical-derived coloring agents canthaxanthin and astaxanthin.

The California Supreme Court just ruled that
consumer groups may continue their lawsuits against big supermarkets
like Albertson’s, Safeway, Trader Joe’s, Costco, Whole Foods and
others—based on their claims that farm-raised salmon sold in their
stores must be labeled “artificially colored.”  Via: Sierra Sun  LINK