Wholistic Pet Salmon Oil is rich in EPA and DHA yet is free of pollutants and heavy metals. This is the finest quality, human grade salmon oil from the body of fresh caught salmon. This perfect combination of Omega 3 and Omega 6 is naturally present in the freshly harvested salmon straight from the waters of the North Atlantic. Unlike some other salmon oil, Wholistic Pet Salmon Oil is true deep sea, wild salmon oil, not farm raised and not contained in farming areas in the sea and called "wild salmon". Farm raised salmon is subject to pollutants and contaminants and is a poor substitute for true deep sea, wild salmon oil that is 33 percent more potent than farm raised.