Farm raised salmon is banned in Australia, New Zealand, and Russia. Why? The fish are raised on a diet of genetically engineered grains and antibiotics. This concoction leaves the fish with greyish flesh, which is then transformed into a bright pink with the use of petrochemicals that haven’t been approved for human consumption. Farm raised salmon have higher levels of harmful compounds such as PCBs, dioxins, and mercury than wild salmon, and they’re more likely to be infected with lethal fish viruses. Moreover, 90 percent of toxins from farm raised salmon bioaccumulate in the body and are expelled through breast milk.