Considering mercury pollution has made the fish you find in most grocery stores unsafe to eat, it's no surprise scientists have found fish oil to be a safer, healthier alternative and the best way to right-size your intake of omega-3 fats too.
Besides mercury, many fish contain polychlorinated biphenyls (PCBs) and organochlorine pesticides, environmental toxins that negate the cardiovascular benefits of fish, scientists said.
In fact, researchers estimate the regular consumption of fish, from the Great Lakes alone, exposes patients to at least 70 times more PCBs and 120 times more organochlorine pesticides.
Medscape January 27, 2006 Registration Required