Many of us are incorporating salmon into our diets as a protein source, but not all salmon fillets are the same. Many varieties contain high levels of chemicals and contaminants. Scientists have found that wild-caught Alaskan salmon have high levels of heart healthy omega-3s, are low in contaminants and are caught sustainably through tough Alaskan regulations and government monitoring of the fishing industry. Farm salmon, on the other hand, are fish "grown" in tightly packed pools where diseases run rampant, and, consequently, the fish are fed high amounts of antibiotics. So when choosing your next salmon dish, think wild instead of farm-raised.