Seafood can provide some of the most nourishing meals and fish are among the most common.
They are also a great source of protein and many other nutrients including Omega-3 which is essential towards improving wellbeing.
However, one thing that all species of fish have in common, is that they all contain slight traces of the toxic element, Mercury.
Some fish contian more traces of mercury than others and if consumed in high quantites, could be toxic to the human body.
So it is imperative that we recognise these species to either limit our consumtion of them or chose to eat other, less toxic fish.
Here is a list of the 5 main species of fish to watch out for:
1. Yellowfin Tuna Fish
According to a study conducted by the Scripps Institution of Oceanography at the University of California, San Diego, Yellowfin Tuna are frequently caught near the most industrialized areas, implying that it can pass on more toxins than just mercury. Pesticides and polychlorinated biphenyls, or PCBs, are examples of such additional toxins.
2. Panga Seabream
Panga Seambream are one of the world's most notorious fish for toxicity. It's commonly sourced in Vietnam, and is very popular with the locals since it is so simple to catch and eat. It is usually prepared in steaks, like sole, but is far more affordable. Aside from the high quanitties of mercury, the limited degree of Omega-3 coupled with the very high amount of unsaturated fats it produces, makes it a very unhealthy fish overall.
The traces of mercury in Mackerel are indeed so large, that the World Health Organization (WHO) has designated it as a potentally "hazardous food". Despite this however, the fish is consumed all over the world.
4. Emperor Bream
The Emperor Bream is a rather fat and stubby fish, making it a stockpile for large pockets of mercury.
Tilapia is not very widely known or consumed, which is not surprising considering the fact that it contains very little Omega-3.
However, this is for the best since it contains rather high levels of mercury.