Several decades ago a fish-centric diet was considered to be not only healthy but also environmentally friendly. But today those of us who eat a lot of fish may not be doing ourselves or the environment any favor. The two major concerns are overfishing and pollution.
Pollution from industrial, agricultural and other everyday activities like electricity generation and automobile driving has also taken a serious toll on the health of the remaining fish species. Scientists routinely find unsafe levels of mercury, PCBs, dioxins, pesticides and other harsh toxins in the fat, internal organs and even muscle tissue of many different kinds of fish. These contaminants are then passed on up the food chain to our dinner plates.
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