Many people consider that eating fish is very healthy. What could be better than enjoying a good piece of salmon or fresh trout? However, when tuna is mentioned, almost everyone comes to mind the presentation in a can, but what most ignore is that its consumption could be very harmful to health.
Here are 8 reasons you should consider before opening a can of tuna …
1-High sodium content
Tuna cans are especially popular among athletes because of their high protein content, since it helps them develop muscles. But a single can of tuna can also have more than 600 mg of sodium in it, which can raise blood pressure and lead to embolism.
2-Absorption of heavy metals
Tunas are predators, which means that they feed on smaller fish, and in the process end up consuming heavy metals like mercury, which accumulates along the entire food chain. When humans eat tuna, they also ingest these metals. According to the World Health Organization (WHO), even a small amount of mercury can damage the digestive system, the kidneys, the skin and the immune system. Too much mercury can increase the risk of heart attacks by up to 70% and cause brain damage, which can manifest in problems of concentration and other cognitive disorders. Although in most cases the concentration of mercury in the fish is low enough not to worry, there are always exceptions.
3-Terrible fishing methods
The tuna are caught in giant nets, and as a result, many of them have a very violent death when they collide with the other tuna while the fishermen collect the net. Those who arrive at the fishing boat alive are beaten to death before being sent to the freezers. The smallest specimens that do not represent any obstacle are thrown directly into the freezers, where they die slowly and painfully from hypothermia and asphyxia.
4-Massive rearing of tuna
The demand for fish continues to grow throughout the world, but at the same time, fish stocks continue to decline. This situation has led to a progressive increase in fish hatcheries. In these places, the tunas grow in overpopulated banks, where they fatten them, kill them and sell them.
Currently, the world’s oceans are highly polluted, full of toxins that fish passively consume. These chemicals include polychlorinated biphenyls (PCBs) and dioxins, both carcinogenic substances that are usually found in the fatty layer of many types of fish.
6-Risk of food poisoning
Eating fish can be dangerous. According to the Center for Disease Control and Prevention, 75% of cases of food poisoning worldwide are caused by seafood consumption. However, it is important to bear in mind that the freshness and way of preparing food play a fundamental role in these cases.
7-Tuna fishing kills dolphins
Tuna are not the only maritime creatures that get trapped in giant nets; Dolphins, sharks and many other animals end up dying along with the tunas.
8- The pollution of the oceans
The fishing industry is responsible for much of the pollution of the world’s waters. The nets, pulleys and many other mechanisms typical of fishing vessels are made of plastic and metal parts, which often end up in water. This type of pollution is deadly for marine life, especially for waterfowl, which often confuse plastic with food and can end up getting tangled up or choking.
As you can see, fishing and tuna consumption is not as harmless as you thought and is part of even a much bigger problem. The terrible death that this fish suffers and the health risk that its consumption entails are presented in other types of fish as well. Many people justify their intake by arguing that they need their Omega 3 acids to improve their health, but there are other ways to include them in your diet: flax and chia seeds or canola and walnut oils are rich in this nutrient.
But if you want to continue enjoying the fish from time to time. Make sure it comes from self-sustaining sources. The environment, and your body, will thank you!