If farmed fish contain dioxins or PCB’s at very low levels, are they safe to eat?
Yes. In fact, because they are farmed, there is more control over possible contaminant levels in farmed fish than there is fish caught from the wild. Not that in either case should this be a reason not to eat fish. There is now general agreement among human nutrition professionals that people should eat fish at least twice per week as part of a balanced, healthy diet. Oily fish such as salmon and tuna are especially recommended, since they contain higher levels of certain fish oils that are now known to provide various important health benefits. The possible risk caused by the presence of tiny amounts of these contaminants is far outweighed by the health benefits that fish in the diet provides. A summary of these benefits can be found athttp://www.iffo.org.uk/tech/d5.htm .
