Canned tuna contains mercury and polychlorinated biphenyls, which are harmful to health. These two ingredients are present in the seawater and sediment at sea.
However, according to scientists, the tuna contains only a third of the amount of these dangerous toxins as compared to shark and fish sword. The main reason for this is the low position of the fish in the food chain, according to which the highest level of contamination with PCBs and mercury has exactly the fish listed higher on this scale.
is not recommended that men consume tuna more than 4 times a week and women of more than 2 times a week.
tuna belongs to the category of non-fat and healthy fish. It has intense flavor and distinctive is rich in oily texture. In addition, tuna is rich in carbohydrates, proteins, but not fat, which makes it an excellent food for a period of diet.
In order to reduce the risk, you need to be very careful and never forget to cast all the oil from the can.