The scientist listed the most harmful fish species

Large marine predators such as tuna, shark, and swordfish are prone to accumulating toxic substances, including mercury, cadmium, and lead, warns Igor Glamazdin, Doctor of Veterinary Sciences, Director of the Institute of Veterinary Medicine, Veterinary and Sanitary Expertise, and Agro-Safety at ROSBIOTECH University.

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This is due to their long life cycle and position at the top of the food chain.

"By absorbing small fish and plankton, they accumulate pollutants present in the marine environment. The World Health Organization recommends limiting the consumption of these types of fish to 1-2 servings per week (100 g each). It is advisable for pregnant women, nursing mothers and young children to completely exclude them from the diet," the scientist explained.

According to him, mercury is also found in various types of mackerel, but Atlantic mackerel is considered safe in terms of its content and is suitable for regular consumption.

"King mackerel (Scomberomorus cavalla) is a species with a high level of mercury accumulation, comparable to tuna. Thus, when choosing mackerel, preference should be given to the Atlantic type and the consumption of royal mackerel should be limited," Glamazdin continued.

For more information about which fish are most often found to contain substances harmful to health, see the Izvestia article:

Cadmium, mercury and lead: what is the danger of eating predatory fish?

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