The silent threat of tuna? Fish is known to be a good source of protein. Because it is easy to digest and has many nutritional values, whether freshwater fish or marine fish are all beneficial to us. Including the delicious tuna It can be cooked in a variety of dishes, both canned and fresh tuna. But how do you know your favorite tuna is safe and won’t harm your health? How about getting to know more about tuna?

Tuna nature

Tuna or O A sprat The flesh is bright pink or red, which is different from regular fish in that it is white. They are most often made into canned fish or freshly cooked for various dishes. They generally prefer to live in a herd in the sea or the ocean far from the coast. This fish has a slender shape. The caudal fin is deeply concave. It can swim very quickly. For the species that people like to cook, including big-eyed tuna, yellow fin tuna. Blue tuna And longfin tuna

How can tuna cause problems with human health?

In general, tuna is harmless to humans, but the problem is that industrial plants release heavy metals into the environment, such as cadmium, chromium, mercury or lead, which are toxic to our bodies. Finally, it spreads to natural water sources such as rivers, canals, swamps, seas and oceans. 

When tuna is in the sea, it gets full of these heavy metals, which studies show that tuna is rich in mercury, especially big-eyed tuna and the red meat area of ​​bluefin tuna. The tuna that is found to be the least heavy metal is yellowfin tuna and the oily portion of bluefin tuna. However, it also contains heavy metals that exceed the safety that people should receive.