Our waters are so polluted with so much industrial waste and high levels of PCBs, that it is destroying our ecosystem making our fish unsafe to eat. What the fish eat, you eat!!!
About Farmed Fish: As our oceans are being
fished out( to use a fisherman's term) and toxic, the environmental situation and demand for fish, forever considered a healthy food, has resulted in a boom of fish farms. Unfortunately, eating farm-fish isn't as safe as it may sound. Most of the fish you buy and eat is from fish farms. Fish farming methods are quite similar to those of commercial cattle industry. As with cattle, the fish are fed grains and soy and are given a wide range of antibiotic drugs and other drugs. As a result, farm-raised fish are likely to contain residues of wide variety of animal drugs, some which are carcinogenic. The farms are near some industrial complexes near the same coast lines, so you run the risk of eating fish that is high in pesticides and industrial chemical residues. Most chemicals found in farmed-fish or ocean waters are dangerous DDTs.
Swordfish, Tuna, Shark and other deep water fish ( particularly the bigger ones) accumulate more mercury than the smaller ones because they tend to have shorter life spans. Today, many of these fish, fresh off the boat have been found to have mercury levels so high that eating them more than once a week is considered dangerous by most health experts. The greatest concern appears to be fish from the inland waters of the U.S. Midwest and the state of Florida.
Avoid fresh water fish unless it comes from high mountain lakes and streams, far from commercial enterprises. Avoid farm-raised fish. In addition to everything I wrote, there is a difference in the omega3:6 fatty acid ratios in farm fish and are about the same as a cage-raised chicken egg. Typically, this is between 16 and 30 omega-6 for every 1 omega-3 fat molecule. That's way off.
Also, the parasites in fish is very high. You are putting yourself at risk when eating raw fish. You most likely will get some form of parasite into your system that is very difficult to get out.
THIS IS WHAT THEY LOOK LIKE: My favorite: