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Fish

Eating farmed fish seems to be not much easier. Farmed salmon depend upon a diet of other fish that has to be caught in open waters. And the concentrations in which they are caged is no better than battery farming, promoting disease and parasites among stock. Then there is the waste effluence that builds up from their faeces over long periods, contaminated with drugs used to mitigate against disease, this has become a huge environmental concern that effects the health of waterways.

Organically farmed fish is one option. This is where sustainable feed (that in the case of salmon does not include colorants to make their flesh look pinker) is used and larger enclosures in waters with high currents that allow the fish to exercise. Another is to diversify in your choice of fish, rather than sticking with the popular option. Or you could start getting your omega-3 oils from another source, such as supplement pills. Many products like bread and cereals now claim to contain such healthy oils but there are now doubts about how much of these 'functional' ingredients actually make it to your body without having oxidised while sitting on the supermarket shelf.